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Effect of silicon on tritrophic interaction of cotton, Gossypium hirsutum (Linnaeus), Bemisia tabaci (Gennadius) (Homoptera: Aleyrodidae) and the predator, Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae)
Arthropod-Plant Interactions ( IF 1.6 ) Pub Date : 2020-09-25 , DOI: 10.1007/s11829-020-09786-1
Asim Abbasi , Muhammad Sufyan , Muhammad Jalal Arif , Shahbaz Talib Sahi

The development of resistance in Bemisia tabaci (Gennadius) (Homoptera: Aleyrodidae) against a number of conventional and new chemistry insecticides has encouraged researchers to exploit some eco-friendly integrated pest management approaches to keep the pest population below their threshold levels. In the current laboratory trials, a free choice cotton leaf-disc assay was conducted to check the effect of silicon on oviposition preference of B. tabaci. Moreover, a predator–prey bioassay was also conducted to compare the developmental and reproductive traits of the predator, Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae) when offered B. tabaci that had either been fed on silicon-treated or untreated cotton plants. The results indicate that silicon treatments significantly reduced the oviposition preference of B. tabaci, however, a more profound effect was observed in the case of foliar applications of silicon as compared to its drenching treatments. Similarly, leaf discs harvested from plants treated with SiO2 showed a significant decline in the number of oviposited eggs as compared to K2SiO3 treatments. However, silicon application did not induce any indirect negative effect on the developmental and reproductive traits of the predator, C. carnea except for its fecundity which might be affected due to feeding on poorer quality host. The current results suggest that feeding of silicon exposed prey does not inflict any direct harmful effects on the biology of predator, C. carnea, hence their integration can be a promising crop protection strategy to encounter the challenges of resistance development in B. tabaci.



中文翻译:

硅对棉花,陆地棉,烟粉虱(Gennadius)(Homooptera:Aleyrodidae)和捕食者Chrysoperla carnea(Stephens)(Neuroptera:Chrysopidae)的三营养相互作用的影响

耐药性的发展烟粉虱(粉虱)(同翅目:粉虱科)对一些传统的和新的化学杀虫剂的鼓励研究人员利用一些环保的综合虫害管理办法,以保持低于阈值水平的害虫种群。在当前的实验室试验中,进行了自由选择的棉叶圆盘试验,以检查硅对烟粉虱产卵偏好的影响此外,还提供了一种捕食者-猎物生物测定法,以比较提供给烟粉虱的捕食者克氏梭菌Chrysoperla carnea,Stephens)(神经翅目:Chrysopidae)的发育和生殖特性用硅处理过的或未处理过的棉花植物喂养的棉花。结果表明,硅处理显着降低了烟粉虱的产卵倾向,然而,与浸湿处理相比,叶面施用硅的效果更显着。同样,与K 2 SiO 3处理相比,从用SiO 2处理过的植物中收获的叶圆片显示产卵数明显下降。但是,施用硅不会对捕食者角衣梭菌的发育和生殖性状产生任何间接的负面影响它的繁殖力可能会因为以质量较差的宿主为食而受到影响。目前的结果表明,喂食暴露于硅中的猎物不会对捕食者角膜梭菌的生物学造成任何直接的有害影响因此它们的整合可以成为一种有希望的作物保护策略,以应对烟粉虱的抗性发展挑战。

更新日期:2020-09-25
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