Next Article in Journal
A Multiplex PCR Based on Mitochondrial COI Sequences for Identification of Members of the Anopheles barbirostris Complex (Diptera: Culicidae) in Thailand and Other Countries in the Region
Previous Article in Journal
Physical and Physiological Monitoring on Red Palm Weevil-Infested Oil Palms
 
 
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Behavioral Responses of Thrips hawaiiensis (Thysanoptera: Thripidae) to Volatile Compounds Identified from Gardenia jasminoides Ellis (Gentianales: Rubiaceae)

1
Guizhou Provincial Key Laboratory for Rare Animal and Economic Insect of the Mountainous Region, Department of Biology and Engineering of Environment, Guiyang University, Guiyang 550005, China
2
Department of the Sciences of Agriculture, Food and Environment, University of Foggia, 71122 Foggia, Italy
3
Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
*
Authors to whom correspondence should be addressed.
Insects 2020, 11(7), 408; https://doi.org/10.3390/insects11070408
Submission received: 16 May 2020 / Revised: 23 June 2020 / Accepted: 25 June 2020 / Published: 1 July 2020

Abstract

:
Thrips hawaiiensis is a common thrips pest of various plant flowers with host preference. Plant volatiles provide important information for host-searching in insects. We examined the behavioral responses of T. hawaiiensis adults to the floral volatiles of Gardenia jasminoides Ellis, Gerbera jamesonii Bolus, Paeonia lactiflora Pallas, and Rosa chinensis Jacq. in a Y-tube olfactometer. T. hawaiiensis adults showed significantly different preferences to these four-flower plants, with the ranking of G. jasminoides > G. jamesonii > P. lactifloraR. chinensis. Further, 29 components were identified in the volatile profiles of G. jasminoides, and (Z)-3-hexenyl tiglate (14.38 %), linalool (27.45 %), and (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene (24.67 %) were the most abundant. Six-arm olfactometer bioassays showed that T. hawaiiensis had significant positive responses to (Z)-3-hexenyl tiglate, linalool, and (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene tested at various concentrations, with the most attractive ones being 10−3 μL/μL, 10−2 μL/μL and 100 μg/μL for each compound, respectively. In pairing of these three compounds at their optimal concentrations, T. hawaiiensis showed the preference ranking of (Z)-3-hexenyl tiglate > linalool > (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene. Large numbers of T. hawaiiensis have been observed on G. jasminoides flowers in the field, which might be caused by the high attraction of this pest to G. jasminoides floral volatiles shown in the present study. Our findings shed light on the olfactory cues routing host plant searching behavior in T. hawaiiensis, providing important information on how T. hawaiiensis targets particular host plants. The high attractiveness of the main compounds (e.g., linalool, (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene, particular (Z)-3-hexenyl tiglate) identified from volatiles of G. jasminoides flowers may be exploited further to develop novel monitoring and control tools (e.g., lure and kill strategies) against this flower-inhabiting thrips pest.

1. Introduction

Thrips hawaiiensis Morgan (Thysanoptera: Thripidae) is a common flower-dwelling thrips pest of various horticultural plant species [1,2]. Native to the Oriental and Pacific regions, T. hawaiiensis is nowadays distributed in Asia, America, Africa, Australia, and Europe due to the expansion of international trade in fresh flowers, fruits, and vegetables [3,4,5,6]. In the field, T. hawaiiensis can attack a large number of plant species such as banana, mango, citrus, apple, tobacco, coffee, tea, horticultural plants and vegetables [6,7,8]. Therefore, it has become an important agricultural pest globally.
Chemical insecticides have always been the primary tool for T. hawaiiensis control, especially the high number of specific treatments applied on banana and mango crops [9,10,11]. T. hawaiiensis showed the potential to rapidly develop resistance to insecticides (e.g., spinetoram) under laboratory selection [9,10]. Early detection of thrips is important for growers to decide when best to apply chemical insecticides or when to alter them, which would help to limit the frequency of insecticide applications, delaying the development of insecticide-resistance. Understanding the host-location behavior in thrips would be helpful for the development of monitoring tools for their early detection.
The color, shape and volatiles associated with different plant species were considered to provide vital cues for thrips and help them to search and locate more suitable host plants [12,13,14,15,16]. Many studies have evaluated the olfactory responses of thrips, e.g., the western flower thrips Frankliniella occidentalis Pergande (Thysanoptera: Thripidae), indicating that both floral volatiles and non-floral odors were attractive to this pest [14,16,17,18]. Further, it was reported that rose volatile compounds allowed the design of new control strategies for western flower thrips [19]. So far little information has been mentioned on the behavioral responses of T. hawaiiensis to plant volatiles.
As a polyphagous flower-inhabiting thrips in China, T. hawaiiensis is always the dominant thrips pest on many banana and mango orchards during their flowering stages [9,10,11,20]. In addition, T. hawaiiensis varies in its population size on different flower host plants and vegetable crops at the flowering stage and particularly showed a preference for Gardenia jasminoides Ellis (Gentianales: Rubiaceae) flowers [21,22]. These results indicated that host plant flowers had a great attractiveness to T. hawaiiensis. To contribute to the knowledge on the role of volatile compounds in the host-searching behavior of T. hawaiiensis, the olfactory responses of adult insects to the odors of different flower plants including G. jasminoides, Gerbera jamesonii Bolus (Campanulales: Asteraceae), Paeonia lactiflora Pallas (Ranales: Ranunculaceae), and Rosa chinensis Jacq. (Rosales: Rosaceae) and to the main components identified from the preferred flower plant (G. jasminoides) were studied. These results may also help in developing new monitoring tools and other control options, which could be implemented in integrated pest management (IPM) strategies against T. hawaiiensis.

2. Materials and Methods

2.1. Insects and Plants

Mixed populations of T. hawaiiensis collected from various host plant species in the Nanming District, Guiyang area (26°34′ N, 106°42′ E) of Guizhou Province, China were used to establish a laboratory colony [21]. The independent colony was continuously reared for more than three generations on bean pods, Phaseolus vulgaris L. (Fabales: Leguminosae) in plastic containers [21,23]. The containers were kept in a climate-controlled room at 26 ± 1 °C, 65 ± 5% RH and a 14:10 h light:dark photoperiod.
G. jasminoides, G. jamesonii, P. lactiflora, and R. chinensis were grown in greenhouses in the nursery of Guiyang University, Guizhou Province, China. The greenhouses were maintained pest free by covering vent openings with insect-proof nettings. No pesticides were used in the whole plant growing season. Flowers at anthesis with intact petals were collected for olfactory tests and analysis of volatiles.

2.2. Behavioural Responses of T. hawaiiensis to Flower Volatiles

The olfactory responses of T. hawaiiensis were tested in a Y-tube olfactometer using the method described in Cao et al. [15,23]. Two types of two-way comparisons were made: (1) each plant flower versus clean air (CA); and (2) all possible flowers pairing. The flow rate was 300 mL/min. All bioassays were conducted between 8:00 a.m. and 6:00 p.m. in a room under 26 ± 1 °C, 65 ± 5% RH, and 1000 lux illumination conditions. For each comparison, 50 females that were 2–3 days old were tested. Thrips were starved for 4 h before the bioassay and the flower material (15.0 g) was replaced after every 10 tested individuals.

2.3. Collection and Analysis of Volatile Organic Compounds (VOCs)

Flower volatiles were collected and analyzed as described in Cao et al. [16]. Flower material (0.3 g) excised from a given host plant was kept in a glass bottle (200 mL) for 2 h prior to capturing the volatiles emitted using a solid-phase microextraction fiber (a ~50/30 µm DVB/CAR/PDMS StableFlex fiber). Volatiles were extracted for 40 min at 80 °C then the fiber head was quickly removed. The collected volatiles were analyzed by gas chromatography mass spectrometry (GC–MS) (HP6890/5975C, Agilent Technologies, CA, USA). The chromatographic column was a ZB-5MSI 5% phenyl-95% dimethylpolysiloxane elastic quartz capillary vessel column (30 m × 0.25 mm × 0.25 μm). The gas chromatograph was operated at an initial temperature of 40 °C for 2 min then increased at 5 °C/min to 255 °C, which was maintained for 2 min. To identify compounds, we compared the mass spectra of compounds with those in databases (Nist 2005 and Wiley 275) and their constituents were confirmed through coinjections with authentic standards.

2.4. Behavioural Responses of T. hawaiiensis to the Main G. jasminoides Volatile Organic Compounds (VOCs)

The VOC mixture from G. jasminoides was the most attractive to T. hawaiiensis as assessed by the Y-tube olfactometer bioassays. Since linalool, (Z)-3-hexenyl tiglate and (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene were the most abundant compounds identified in the VOC profile of G. jasminoides, the behavioral responses of T. hawaiiensis to these compounds were tested further in six-arm and Y-tube olfactometer bioassays.

2.5. Odour Stimuli

Mineral oil (Sigma-Aldrich, Steinheim, Germany) solutions of linalool and (Z)-3-hexenyl tiglate (Sigma-Aldrich, Germany; chemical purity 99%) (i.e., 10−5, 10−4, 10−3, 10−2 and 10−1 μL/μL) and (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene (Sigma-Aldrich, Germany; chemical purity 99%) (i.e., 0.1, 1, 10, 100 and 200 μg/μL) were prepared. Solutions were stored at −20 °C until the testing phase.

2.6. Six-arm Olfactometer Bioassays

The behavioral responses of adult T. hawaiiensis to different doses of linalool, (Z)-3-hexenyl tiglate, and (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene) were evaluated in a six-arm olfactometer with the method described by Liu et al. [24]. and Cao et al. [25]. Briefly, the six-arm olfactometer consisted of a central chamber with six arms, each connected to a glass tube that projected outwards at an equidistance, with equal angles (60°) between pairs of tubes. Each arm was connected through Teflon tubing to a glass vessel containing a test or control stimulus. For each experiment, equal volumes (25 µL) of each of the five solutions of one compound and mineral oil (used as the control), absorbed onto a filter paper disk (1.0-cm diameter), were used as test and control stimuli, respectively. The airflow was set at 200 mL/min to drive the odor source to thrips. Thrips hawaiiensis (2–3 days old females) were starved for 4 h and introduced in groups (200 individuals per group) into the central chamber with a fine camel hair brush. Within 20 min, insects that entered one arm of the olfactometer were counted as having made a choice for a particular odor, while thrips that did not enter any arm were considered non-responders. After each test, the olfactometer was cleaned, dried and the arms were rotated (60°). Each bioassay was replicated six times between 9:00 am and 6:00 pm. In order to eliminate any light bias, a 25-W light was placed in the center 60 cm above the chamber.

2.7. Y-Tube Bioassays

In the six-arm olfactometer bioassays, linalool, (Z)-3-hexenyl tiglate, and (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene showed the highest attractiveness to T. hawaiiensis at the concentration of 10−2 μL/μL, 10−3 μL/μL and 100 μg/μL, respectively. Therefore, the attractant power of the three compounds at their optimal concentrations were compared in further Y-tube bioassays as described above.

2.8. Statistical Analyses

All statistical analyses were performed using SPSS 18.0 for Windows (SPSS Inc., Chicago, IL, USA) [26]. The null hypothesis that T. hawaiiensis adults showed no preference for either Y-tube arm (a response equal to 50:50) was analyzed using a chi-square goodness-of-fit test [27]. The number of thrips found in the different arms of the six-arm olfactometer were subjected to Friedman two-way ANOVA by ranks and in the case of significance (p < 0.05) the Wilcoxon signed ranks test was used for separation of means [28].

3. Results

3.1. Behavioural Responses of T. hawaiiensis to Flower Volatiles

When T. hawaiiensis adults were presented with different flower volatiles versus clean air (CA), they showed significant preferences for G. jasminoides (χ2 = 25.13, df = 1, p < 0.01), G. jamesonii (χ2 = 16.20, df = 1, p < 0.01), P. lactiflora (χ2 = 5.82, df = 1, p = 0.016) and R. chinensis (χ2 = 5.00, df = 1, p = 0.025) (Figure 1).
Thrips hawaiiensis also showed significant preferences among the flowers when presented with choices. Gardenia jasminoides was more attractive to T. hawaiiensis than G. jamesonii (χ2 = 4.79, df = 1, p = 0.029), P. lactiflora (χ2 = 6.15, df = 1, p = 0.013) or R. chinensis (χ2 = 8.02, df = 1, p = 0.005). Gardenia jasminoides was more attractive than P. lactiflora (χ2 = 4.26, df = 1, p = 0.039) or R. chinensis (χ2 = 5.23, df = 1, p = 0.022). However, T. hawaiiensis showed no significant preference between P. lactiflora and R. chinensis (χ2 = 2.69, df = 1, p = 0.10) (Figure 1).

3.2. Analysis of G. jasminoides Volatiles

Twenty-nine components were identified in the volatiles from G. jasminoides (Table 1). The component with the highest relative content was linalool (27.45%), followed by (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene (24.67%), (Z)-3-hexenyl tiglate (14.38%), and then jasmine lactone (6.93%). There was no other component greater than 5% identified from the flower volatiles of G. jasminoides.

3.3. Behavioural Responses of T. hawaiiensis to the Main Components of G. jasminoides VOCs

3.3.1. Six-Arm Olfactometer Bioassays

In these experiments, the number of insects that entered the control arm connected to the vessel with mineral oil were significantly lower than those of insects found in the arms with the different doses of linalool (Friedman test: χ2 = 30.00, df = 5, p < 0.001, Wilcoxon tests: p = 0.026–0.028), (Z)-3-hexenyl tiglate (Friedman test: χ2 = 29.88, df = 5, p < 0.001, Wilcoxon tests: p = 0.026–0.027), or (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene (Friedman test: χ2 = 29.88, df = 5, p < 0.001, Wilcoxon tests: p = 0.026–0.028) (Figure 2).
There were relatively significant differences in attraction among all doses of linalool (Wilcoxon tests: p = 0.026–0.028), (Z)-3-hexenyl tiglate (Wilcoxon tests: p = 0.026–0.038), and (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene (Friedman test: χ2 = 29.88, df = 5, p < 0.001, Wilcoxon tests: p = 0.026–0.043) (Figure 3). Significantly more insects entered the arm connected to the vessel that contained 0.25 μL of linalool or 0.025 μL of (Z)-3-hexenyl tiglate or 0.25 mg of (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene over the arm with the other doses.

3.3.2. Y-Tube Olfactometer Bioassays

In the six-arm olfactometer bioassays, 10-2 μL/μL for linalool, 10-3 μL/μL for (Z)-3-hexenyl tiglate and 100 μg/μL for (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene, respectively, were the most attractive concentrations to T. hawaiiensis. Thus, the behavioral responses of T. hawaiiensis to these compounds at their optimal doses were further compared in a Y-tube olfactometer (Figure 3). Significantly higher numbers of T. hawaiiensis were found to prefer (Z)-3-hexenyl tiglate (χ2 = 27.00, df = 1, p < 0.01), linalool (χ2 = 25.13, df = 1, p < 0.01), and (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene (χ2 = 19.57, df = 1, p < 0.01) as compared to clean air (Figure 3).
When these three compounds were compared with each other, T. hawaiiensis significantly preferred (Z)-3-hexenyl tiglate to linalool (χ2 = 5.33, df = 1, p = 0.021), (Z)-3-hexenyl tiglate to (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene (χ2 = 5.57, df = 1, p = 0.018), and linalool to (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene (χ2 = 4.46, df = 1, p = 0.035) (Figure 3).

4. Discussion

Volatile compounds emitted from plants are important cues in the host selection process of phytophagous insects. In a natural plant community, different plant species emit different qualitative and quantitative blends of VOCs, which guide insects to discriminate and locate their host plants [29,30]. For flower thrips pests, a great number of studies have documented that F. occidentalis exhibited significantly positive responses to the volatiles of host plants [13,14,15,17,18], and displayed a significant preference for specific host olfactory cues [16,23]. Therefore, based on the bioactive compounds identified from the host plant volatiles, lures were developed and applied for the monitoring and control of F. occidentalis [19,31,32,33,34]. In the present study, T. hawaiiensis were significantly attracted to the volatiles from G. jasminoides, G. jamesonii, P. lactiflora, and R. chinensis, and showed olfactory preferences with G. jasminoides > G. jamesonii > P. lactifloraR. chinensis. This is consistent with our previous field observations during which large numbers of T. hawaiiensis were found in G. jasminoides flowers [21]. Furthermore, the nutritional composition of G. jasminoides flowers could adequately satisfy the nutritional needs of T. hawaiiensis which could have a faster population development when fed on these flowers [35].
GC-MS analysis highlighted the presence of 29 compounds in the VOC profile of G. jasminoides flowers, among which the most abundant compounds, linalool (27.45 %), (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene (24.67 %), and (Z)-3-hexenyl tiglate (14.38 %), were considered to be related to the typical floral odor of this plant species [36]. Different concentrations of linalool (10-5 ~ 10-1 μL/μL), (Z)-3-hexenyl tiglate (10-5 ~ 10-1 μL/μL), and (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene (0.1 ~ 200 μg/μL) were all attractive to T. hawaiiensis, but the 10-2 μL/μL, 10-3 μL/μL, and 100 μg/μL concentrations, respectively, were the most attractive ones. Further, regarding these three compounds at their optimal attractive concentration, T. hawaiiensis had different olfactory preferences with (Z)-3-hexenyl tiglate > linalool > (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene. Therefore, (Z)-3-hexenyl tiglate seems to have greater potential for the development of a new attractant lure for T. hawaiiensis monitoring and control. The behavioral responses of insects are influenced not only by individual compounds and concentrations but also by their ratios in mixtures [37,38,39]. So, the possible additive or synergistic effects among (Z)-3-hexenyl tiglate and the other attractive compounds identified in this study may require to be further evaluated through massive behavioral bioassays testing different doses and combinations of these VOCs. Moreover, field-trapping tests should be conducted to confirm their practically attractive effects [18,19,30,37].
Pollens were considered to be an important factor involved in the preference of thrips for host plant flowers [40,41,42], as F. occidentalis was attracted to the compound of (S)-verbenone identified from the volatiles of pine pollen [18,33]. However, pollens of G. jasminoides flowers were not involved in T. hawaiiensis’ olfactory responses in this study. Besides, the host preference of different thrips species were related to the color, shape, nutritional conditions or other physicochemical characteristics of host plants [13,15,17,43,44,45]. Thus, more related physicochemical characteristics that may influence the behavioral responses of T. hawaiiensis should be studied to comprehensively understand the mechanism of host selection among different flower plants.
Host plant volatiles not only attract phytophagous pests but also their natural enemies [46,47,48] Although predators seem to be more attracted by herbivore-induced volatiles, as reported on the significant preferences of the predator Neoseiulus cucumeris Oudemans (Acari: Phytoseiidae) to the volatiles from vegetable hosts infested by F. occidentalis or Thrips tabaci Lindeman (Lindeman) (Thysanoptera: Thripidae) [47,49], data that do not support such a specificity have been reported [50,51,52,53]. In this framework, it is imperative to study the attractiveness of VOCs from healthy and infested flowers to natural enemies of T. hawaiiensis, e.g., Orius sauteri Poppius (Heteroptera: Anthocoridae) [54].

5. Conclusions

Females of T. hawaiiensis exhibited a higher olfactory preference for the VOCs of G. jasminoides flowers over a range of four flower plants. Moreover, insects were significantly attracted by different concentrations of the three main components of G. jasminoides flower VOCs with (Z)-3-hexenyl tiglate being the most attractive. Overall, this study clearly demonstrated that plant volatiles are involved in host-plant selection by T. hawaiiensis even if, to comprehensively understand this mechanism, possible interactions among chemical cues and other physicochemical characteristics remain to be investigated. The kairomonal activity of (Z)-3-hexenyl tiglate, linalool, and (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene to T. hawaiiensis females found in this study provides a basis for further electrophysiological, behavioral, and field-trapping experiments to develop semiochemically-based monitoring tools and direct control options for this pest.

Author Contributions

Y.C., Y.G. and C.L. conceived and designed the research. J.W., L.W. and H.Y. conducted the experiments. Y.C. and G.S.G. analyzed the data. Y.C. and G.S.G. wrote the manuscript. All authors have read and agreed to the published version of the manuscript.

Funding

This research was funded by the Provincial Natural Science Foundation of Guizhou, grant number [2018]1004; the Regional First-class Discipline Construction of Guizhou Province, grant number [2017]85; Discipline and Master’s Site Construction Project of Guiyang University financed by Guiyang City, grant number SH-2020; the Program for Academician Workstation in Guiyang University, grant number 20195605; and the Training Project for High-Level Innovative Talents in Guizhou Province, grant number 2016 [4020] and The APC was funded by Guizhou Provincial Key Laboratory for Rare Animal and Economic Insect of the Mountainous Region.

Conflicts of Interest

The authors declare no conflict of interest.

References

  1. Mound, L.A.; Kibby, G. Thysanoptera: An Identification Guide, 2nd ed.; CAB International: Oxon, UK, 1998. [Google Scholar]
  2. Mound, L.A. Thysanoptera: Diversity and interaction. Annu. Rev. Entomol. 2005, 50, 247–269. [Google Scholar] [CrossRef] [PubMed]
  3. Murai, T. Development and reproductive capacity of Thrips hawaiiensis (Thysanoptera: Thripidae) and its potential as a major pest. Bull. Entomol. Res. 2001, 91, 193–198. [Google Scholar] [PubMed]
  4. Reynaud, P.; Balmès, V.; Pizzol, J. Thrips hawaiiensis (Morgan, 1913) (Thysanoptera: Thripidae), an Asian pest thrips now established in Europe. Bull OEPP 2008, 1, 155–160. [Google Scholar] [CrossRef]
  5. Aliakbarpour, H.; Salmah, M.R.C. Seasonal abundance and spatial distribution of larval and adult thrips (Thysanoptera) on weed host plants in mango orchards in Penang, Malaysia. Appl. Entomol. Zool. 2011, 2, 185–194. [Google Scholar] [CrossRef]
  6. Goldarazena, A. First record of Thrips hawaiiensis (Morgan, 1913) (Thysanoptera: Thripidae), an Asian pest thrips in Spain. Bull. OEPP 2011, 41, 170–173. [Google Scholar] [CrossRef]
  7. Atakan, E.; Ölçülü, M.; Pehlivan, S.; Satar, S. A new thrips species recorded in Turkey: Thrips hawaiiensis (Morgan, 1913) (Thysanoptera: Thripidae). Türk. Entomol. Bült. 2015, 2, 77–84. [Google Scholar] [CrossRef] [Green Version]
  8. Fu, B.L.; Qiu, H.Y.; Li, Q.; Tang, L.D.; Zeng, D.Q.; Liu, K.; Gao, Y.L. Analysis of seasonal and annual field-evolved insecticide resistance in populations of Thrips hawaiiensis in banana orchards. J. Pest Sci. 2019, 92, 1293–1307. [Google Scholar] [CrossRef]
  9. Fu, B.L.; Tang, L.D.; Qiu, H.Y.; Liu, J.F.; Zeng, D.Q.; Xie, Y.X.; Zeng, D.Q.; Liu, K. Screening of high effect and low toxicity insecticides for controlling Thrips hawaiiensis (Morgan). Chin. J. Fruit Sci. 2016, 33, 257–267. [Google Scholar]
  10. Fu, B.L.; Li, Q.; Xia, X.Y.; Tang, L.D.; Qiu, H.Y.; Xie, Y.X.; Zeng, D.Q.; Liu, K. Moderate resistance to spinetoram reduces the fitness of Thrips hawaiiensis (Thysanoptera: Thripidae). Acta Entomol. Sin. 2017, 60, 180–188. [Google Scholar]
  11. Fu, B.L.; Li, Q.; Qiu, H.Y.; Tang, L.D.; Zeng, D.Q.; Liu, K.; Gao, Y.L. Resistance development, stability, cross-resistance potential, biological fitness and biochemical mechanisms of spinetoram resistance in the Thrips hawaiiensis (Thysanoptera: Thripidae). Pest Manag. Sci. 2018, 74, 1564–1574. [Google Scholar] [CrossRef]
  12. Terry, I. Host Selection Communication and Reproductive Behaviour. In Thrips as Crop Pests; Lewis, T., Ed.; CAB International: Oxon, UK, 1997; pp. 65–118. [Google Scholar]
  13. Teulon, D.A.J.; Hollister, B.; Butler, R.C.; Cameron, E.A. Colour and odour responses of flying western flower thrips: Wind tunnel and greenhouse experiments. Entomol. Exp. Appl. 1999, 93, 9–19. [Google Scholar] [CrossRef]
  14. Koschier, E.H.; De Kogel, W.J.; Visser, J.H. Assessing the attractiveness of volatile plant compounds to western flower thrips (Frankliniella occidentalis (Pergande). J. Chem. Ecol. 2000, 26, 2643–2655. [Google Scholar] [CrossRef]
  15. Cao, Y.; Zhi, J.R.; Li, C.; Zhang, R.Z.; Wang, C.; Shang, B.Z.; Gao, Y.L. Behavioral responses of Frankliniella occidentalis to floral volatiles combined with different background visual cues. Arthropod Plant Interact. 2018, 12, 31–39. [Google Scholar] [CrossRef]
  16. Cao, Y.; Li, C.; Yang, H.; Li, J.; Li, S.; Wang, Y.W.; Gao, Y.L. Laboratory and field investigation on the orientation of Frankliniella occidentalis (Thysanoptera: Thripidae) to more suitable host plants driven by volatiles and component analysis of volatiles. Pest Manag. Sci. 2019, 75, 598–606. [Google Scholar] [CrossRef]
  17. Mainali, B.P.; Lim, U.T. Behavioral response of western flower thrips to visual and olfactory cues. J. Insect. Behav. 2011, 24, 436–446. [Google Scholar] [CrossRef]
  18. Abdullah, Z.S.; Ficken, K.J.; Greenfield, B.P.J.; Butt, T.M. Innate responses to putative ancestral hosts: Is the attraction of western flower thrips to pine pollen a result of relict olfactory receptors? J. Chem. Ecol. 2014, 40, 534–540. [Google Scholar] [CrossRef] [Green Version]
  19. Avellaneda, J.; Marco, D.; Ericsson, C.B.; Daniel, R.; Coralia, O. Rose volatile compounds allow the design of new control strategies for the western flower thrips (Frankliniella occidentalis). J. Pest Sci. 2019, 1–14. [Google Scholar] [CrossRef]
  20. Zhang, F.; Fu, B.L.; Liu, K.; Qiu, H.Y.; Wu, W. The effect of temperature on the development and survival of Thrips hawaiiensis (Morgan). Acta Ecol. Sin. 2014, 14, 3895–3899. [Google Scholar]
  21. Cao, Y.; Zhi, J.R.; Zhang, R.Z.; Li, C.; Liu, Y.; Lv, Z.Y.; Gao, Y.L. Different population performances of Frankliniella occidentalis and Thrips hawaiiensis on flowers of two horticultural plants. J. Pest. Sci. 2018, 1, 79–91. [Google Scholar] [CrossRef]
  22. Yuan, C.M.; Zhi, J.R.; Li, J.Z.; Zhang, Y. Investigation on the species of thrips in fields of vegetable in Guizhou Province. China Plant Prot. 2008, 7, 8–10. [Google Scholar]
  23. Cao, Y.; Zhi, J.R.; Cong, C.L.; Margolies, D.C. Olfactory cues used in host selection by Frankliniella occidentalis (Thysanoptera: Thripidae) in relation to host suitability. J. Insect Behav. 2014, 27, 41–56. [Google Scholar] [CrossRef]
  24. Liu, X.F.; Chen, H.H.; Li, J.K.; Zhang, R.; Turlings, T.C.; Chen, L. Volatiles released by Chinese liquorice roots mediate host location behaviour by neonate Porphyrophora sophorae (Hemiptera: Margarodidae). Pest Manag Sci. 2016, 72, 1959–1964. [Google Scholar] [CrossRef] [PubMed]
  25. Cao, Y.; Benelli, G.; Germinara, G.S.; Maggi, F.; Zhang, Y.J.; Luo, S.L.; Yang, H.; Li, C. Innate positive chemotaxis to paeonal from highly attractive Chinese medicinal herbs in the cigarette beetle, Lasioderma serricorne. Sci Rep. 2019, 6995, 1–11. [Google Scholar] [CrossRef] [PubMed]
  26. Li, J.; Tianyi, K.; Yao, J.P.; Wang, R.H.; Lin, J.; Zhou, Y.; Zuo, G.Q.; Wang, Z.B.; Dai, L.L.; Ren, J.L.; et al. Liquid-solid phase-inversion plga implant for the treatment of residual tumor tissue after hifu ablation. PLoS ONE 2015, 10, e0117358. [Google Scholar] [CrossRef]
  27. Zar, J.H. Biostatistical Analysis; Prentice Hall: Engelwood Cliffs, NJ, USA, 1984. [Google Scholar]
  28. Tryfonidis, M.; Charalambous, C.P.; Mills, Y.S.P.; Jass, Z.G.K.; Jacob, S.; Stanleyx, J.K.; Haytonx, M.J. Distal radial and ulnar landmarks used in percutaneous pin fixation: Anatomical relationship to the superficial radial and ulnar nerves. Hand Surg. 2010, 15, 161–164. [Google Scholar] [CrossRef]
  29. Knolhoff, L.M.; Heckel, D.G. Behavioral assays for studies of host plant choice and adaptation in herbivorous insects. Ann. Rev. Entomol. 2014, 59, 263–278. [Google Scholar] [CrossRef]
  30. Beyaert, I.; Hilker, M. Plant odour plumes as mediators of plant–insect interactions. Biol. Rev. 2014, 89, 68–81. [Google Scholar] [CrossRef]
  31. Teulon, D.A.J.; Penman, D.R.; Ramakers, P.M.J. Volatile chemical for thrips (Thysanoptera: Thripidae) host-finding and applications for thrips pest management. J. Econ. Entomol. 1993, 86, 1405–1415. [Google Scholar] [CrossRef]
  32. Frey, J.E.; Cortada, R.V.; Helbling, H. The potential of flower odours for use in population monitoring of western flower thrips, Frankliniella occidentalis (Perg.) (Thysanoptera: Thripidae). Biocontrol. Sci. Technol. 1994, 4, 177–186. [Google Scholar] [CrossRef]
  33. Davidson, M.M.; Butler, R.C.; Winkler, S.; Tuelon, D.A.J. Pyridine compounds increase trap capture of Frankliniella occidentalis (Pergande) in a covered crop. NZ Plant Prot. 2007, 60, 56–60. [Google Scholar] [CrossRef] [Green Version]
  34. Abdullah, Z.S.; Greenfield, B.P.; Ficken, K.J.; Taylor, J.W.; Wood, M.; Butt, T.M. A new attractant for monitoring western flower thrips, Frankliniella occidentalis in protected crops. SpringerPlus 2015, 4, 1–9. [Google Scholar] [CrossRef] [PubMed] [Green Version]
  35. Cao, Y.; Li, C.; Yang, W.J.; Meng, Y.L.; Wang, L.J.; Shang, B.Z.; Gao, Y.L. Effects of temperature on the development and reproduction of Thrips hawaiiensis (Thysanoptera: Thripidae). J. Econ. Entomol. 2018, 111, 755–760. [Google Scholar] [CrossRef] [PubMed]
  36. Tang, Y.T.; Xue, S.; Tang, H.Z. Analysis of aroma constituents in Gardenia jasminoides at different flowering stages. Food Sci. 2012, 33, 227–233. [Google Scholar]
  37. Davidson, M.M.; Perry, N.B.; Larsen, L.; Green, V.C.; Butler, R.C.; Teulon, D.A.J. 4-Pyridyl carbonyl compounds as thrips lures: Effectiveness for western flower thrips in y-tube bioassays. J. Agric. Food Chem. 2008, 56, 6554–6561. [Google Scholar] [CrossRef]
  38. Najar-Rodriguez, A.J.; Galizia, C.G.; Stierle, J.; Dorn, S. Behavioral and neurophysiological responses of an insect to changing ratios of constituents in host plant-derived volatile mixtures. J. Exp. Biol. 2010, 213, 3388–3397. [Google Scholar] [CrossRef] [PubMed] [Green Version]
  39. Cha, D.H.; Linn, C.E.; Teal, P.E.A.; Zhang, A.; Roelofs, W.L.; Loeb, G.M. Eavesdropping on plant volatiles by a specialist moth: Significance of ratio and concentration. PLoS ONE 2011, 6, e17033. [Google Scholar] [CrossRef] [Green Version]
  40. Hulshof, J.; Ketoja, E.; Vanninen, L. Life history characteristics of Frankliniella occidentalis on cucumber leaves with and without supplemental food. Entomol. Exp. Appl. 2003, 108, 19–32. [Google Scholar] [CrossRef]
  41. Riley, D.G.; Angelella, G.M.; McPherson, R.M. Pine pollen dehiscence relative to thrips population dynamics. Entomol. Exp. Appl. 2011, 138, 223–233. [Google Scholar] [CrossRef]
  42. Zhi, J.R.; Fitch, G.K.; Margolies, D.C.; Nechols, J.R. Apple pollen as a supplemental food for the western flower thrips, Frankliniella occidentalis: Response of individuals and populations. Entomol. Exp. Appl. 2005, 117, 185–192. [Google Scholar] [CrossRef]
  43. Vernon, R.S.; Gillespie, D.R. Influence of trap shape, size, and background color on captures of Frankliniella occidentalis (Thysanoptera: Thripidae) in a cucumber greenhouse. J. Econ. Entomol. 1995, 88, 288–293. [Google Scholar] [CrossRef]
  44. Brown, A.S.S.; Simmonds, M.S.J.; Blaney, W.M. Relationship between nutritional composition of plant species and infestation levels of thrips. J. Chem. Ecol. 2003, 12, 2399–2409. [Google Scholar]
  45. Mainali, B.P.; Lim, U.T. Circular yellow sticky trap with black background enhances attraction of Frankliniella occidentalis (pergande) (Thysanoptera: Thripidae). Appl. Entomol. Zool. 2010, 45, 207–213. [Google Scholar] [CrossRef] [Green Version]
  46. Dicke, M. Are herbivore-induced plant volatiles reliable indicators of herbivore identity to foraging carnivorous arthropods? Entomol. Exp. Appl. 1999, 92, 131–142. [Google Scholar] [CrossRef]
  47. Zhong, F.; He, Y.R.; Gao, Y.; Qi, G.J.; Zhao, C.Y.; Lu, L.H. Olfactory responses of Neoseiulus cucumeris (Acari: Phytoseiidae) to odors of host plants and Frankliniella occidentalis (Thysanoptera: Thripidae)–plant complexes. Arthropod Plant Interact. 2011, 5, 307–314. [Google Scholar] [CrossRef]
  48. Joo, Y.; Schuman, M.C.; Goldberg, J.K.; Sang-Gyu, K.; Yon, F.; Brütting, C.; Baldwin, I.T.; Rasmann, S. Herbivore-induced volatile blends with both “fast” and “slow” components provide robust indirect defence in nature. Funct. Ecol. 2018, 32, 136–149. [Google Scholar] [CrossRef] [Green Version]
  49. Takemoto, S.; Shimoda, T. Olfactory responses of the predatory mites (Neoseiulus cucumeris) and insects (Orius strigicollis) to two different plant species infested with onion thrips (Thrips tabaci). J. Chem. Ecol. 2008, 34, 605–613. [Google Scholar] [CrossRef]
  50. Turlings, T.C.J.; Bernasconi, M.; Bertossa, R.; Bigler, F.; Caloz, G.; Dorn, S. The induction of volatile emissions in maize by three herbivore species with different feeding habits: Possible consequences for their natural enemies. Biol. Control. 1998, 11, 122–129. [Google Scholar] [CrossRef]
  51. Mattiacci, L.; Dicke, M. Host-age discrimination during host location by Cotesia glomerata, a larval parasitoid of Pieris brassicae. Entomol. Exp. Appl. 1995, 76, 37–48. [Google Scholar] [CrossRef]
  52. Röse, U.S.R.; Lewis, W.J.; Tumlinson, J.H. Specificity of systemically released cotton volatiles as attractants for specialist and generalist parasitic wasps. J. Chem. Ecol. 1998, 24, 303–319. [Google Scholar] [CrossRef]
  53. Germinara, G.S.; De Cristofaro, A.; Rotundo, G. Electrophysiological and behavioral responses of Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae) to cereal grain volatiles. BioMed Res. Int. 2016, 2016, 5460819. [Google Scholar] [CrossRef] [Green Version]
  54. Fu, B.L.; Qiu, H.Y.; Li, Q.; Sun, Y.T.; Zhou, S.H.; Yang, S.Y.; LI, S.G.; Tang, L.D.; Zhang, F.P.; Liu, K. Predation of Orius sauteri on Thrips hawaiiensis in the laboratory. Chin. J. Appl. Entomol. 2019, 56, 91–98. [Google Scholar]
Figure 1. Behavioral responses of T. hawaiiensis to the volatiles from different flowers. Asterisks indicate highly significant (** p < 0.01) and significant (* p < 0.05) differences in the selectivity of T. hawaiiensis between two odors by χ2 test. NS indicates no significant differences (p > 0.05) in the selectivity of T. hawaiiensis between two odors.
Figure 1. Behavioral responses of T. hawaiiensis to the volatiles from different flowers. Asterisks indicate highly significant (** p < 0.01) and significant (* p < 0.05) differences in the selectivity of T. hawaiiensis between two odors by χ2 test. NS indicates no significant differences (p > 0.05) in the selectivity of T. hawaiiensis between two odors.
Insects 11 00408 g001
Figure 2. Olfactory responses of T. hawaiiensis to different doses of linalool, (Z)-3-hexenyl tiglate and (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene in a six-arm olfactometer. Control was mineral oil. Each box plot represents the median and its range of dispersion (lower and upper quartiles and outliers). Above each box plot, different letters indicate significant differences (Wilcoxon test, p < 0.05).
Figure 2. Olfactory responses of T. hawaiiensis to different doses of linalool, (Z)-3-hexenyl tiglate and (E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraene in a six-arm olfactometer. Control was mineral oil. Each box plot represents the median and its range of dispersion (lower and upper quartiles and outliers). Above each box plot, different letters indicate significant differences (Wilcoxon test, p < 0.05).
Insects 11 00408 g002
Figure 3. Behavioral responses of T. hawaiiensis to the main Ga. jasminoides volatiles. Asterisks indicate highly significant (** p < 0.01) and significant (* p < 0.05) differences in the selectivity of T. hawaiiensis between two odors by χ2 test.
Figure 3. Behavioral responses of T. hawaiiensis to the main Ga. jasminoides volatiles. Asterisks indicate highly significant (** p < 0.01) and significant (* p < 0.05) differences in the selectivity of T. hawaiiensis between two odors by χ2 test.
Insects 11 00408 g003
Table 1. Volatile components of G. jasminoides flower.
Table 1. Volatile components of G. jasminoides flower.
NumberCompoundsMolecular FormulaMolecular WeightContent (%)
1Methyl tiglateC6H10O21140.39
2(Z)-3-Hexen-1-olC6H12O1003.59
3β-MyrceneC10H161360.15
4(Z)-3-Hexenyl acetateC8H14O21420.18
5(E)-OcimeneC10H161361.38
6γ-CaprolactoneC6H10O21140.10
7trans-Linalool oxideC10H18O21700.32
8Methyl benzoateC8H8O21361.64
9LinaloolC10H18O15427.45
10(Z)-3-hexenyl iso-butyrateC10H18O21340.22
11Benzyl acetateC9H10O21500.25
12(Z)-3-hexenyl butanoateC10H18O21700.38
13Methyl salicylateC8H8O31520.20
14(Z)-3-hexenyl 2-methylbutanoateC11H20O21841.28
15Hexyl 2-MethylbutyrateC11H22O21860.61
16Benzyl propionateC10H12O21640.12
17(Z)-3-hexenyl tiglateC11H18O218214.38
18Hexyl tiglateC11H20O21844.01
19(Z)-3-hexenyl hexanoateC12H22O21980.11
20Isoamyl benzoateC12H16O21920.28
21γ-DecanolactoneC10H18O21700.18
22Jasmine lactoneC10H16O21686.93
23Benzyl tiglateC12H14O21900.23
24α-FarneseneC15H242043.58
25Octyl (E)-2-methylbut-2-enoateC13H24O22120.58
26E-NerolidolC15H26O2220.27
27(Z)-3-Hexenyl phenylacetateC14H18O22180.41
28(E3,E7)-4,8,12-trimethyltrideca-1,3,7,11-tetraeneC16H2621824.67
29Geranyl tiglateC15H24O22360.41

Share and Cite

MDPI and ACS Style

Cao, Y.; Wang, J.; Germinara, G.S.; Wang, L.; Yang, H.; Gao, Y.; Li, C. Behavioral Responses of Thrips hawaiiensis (Thysanoptera: Thripidae) to Volatile Compounds Identified from Gardenia jasminoides Ellis (Gentianales: Rubiaceae). Insects 2020, 11, 408. https://doi.org/10.3390/insects11070408

AMA Style

Cao Y, Wang J, Germinara GS, Wang L, Yang H, Gao Y, Li C. Behavioral Responses of Thrips hawaiiensis (Thysanoptera: Thripidae) to Volatile Compounds Identified from Gardenia jasminoides Ellis (Gentianales: Rubiaceae). Insects. 2020; 11(7):408. https://doi.org/10.3390/insects11070408

Chicago/Turabian Style

Cao, Yu, Jie Wang, Giacinto Salvatore Germinara, Lijuan Wang, Hong Yang, Yulin Gao, and Can Li. 2020. "Behavioral Responses of Thrips hawaiiensis (Thysanoptera: Thripidae) to Volatile Compounds Identified from Gardenia jasminoides Ellis (Gentianales: Rubiaceae)" Insects 11, no. 7: 408. https://doi.org/10.3390/insects11070408

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop