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Phytoseiid mites in cashew trees: diversity and seasonality
International Journal of Acarology ( IF 1.1 ) Pub Date : 2021-04-18 , DOI: 10.1080/01647954.2021.1908423
Jairo A. Mendes 1 , Debora B. Lima 2 , Neville V. Monteiro 1 , Manoel G. C. Gondim 3 , José Wagner da Silva Melo 1
Affiliation  

ABSTRACT

One of the main factors limiting the growth of cashew (Anacardium occidentale) crops is the incidence of pests, which is even more problematic because of the limited number of pesticides available. Thus, the biodiversity of beneficial organisms deserves special attention for improving the development of pest management programs. These faunae include predatory mites of the family Phytoseiidae, which are recognized as biological control agents. In the present study, the diversity and seasonality of phytoseiids in cashew plants were investigated during one year in two crop areas in Brazil (one of the main producers and likely place of origin). Species diversity was analysed at both sites and seasonality data only in the area with greater abundance and diversity. In one of the areas, seven species of phytoseiids were found, with Euseius concordis the most prevalent species; in the other area, nine species were found, and Iphiseiodes zuluagai was the most prevalent species. Phytoseiids were found throughout the year, and their population dynamics were influenced by temperature and tydeid populations. Lower phytoseiid population densities were recorded during the dry period, when high temperatures were associated with reduced precipitation and humidity. This period also coincided with high tydeid population densities, represented only by the species Lorryia formosa. Twelve phytoseiid species were found on cashew plants, with a predominance of generalist phytoseiids (types III and IV), which may be potentially used as biological control agents not only for phytophagous mites but also for small insects.



中文翻译:

腰果树中的植物螨:多样性和季节性

摘要

限制腰果生长的主要因素之一(Anacardium occidentale) 农作物是害虫的发生,由于可用的杀虫剂数量有限,这更成问题。因此,有益生物的生物多样性值得特别关注,以改善害虫管理计划的发展。这些动物群包括Phytoseiidae 家族的捕食性螨类,它们被认为是生物防治剂。在本研究中,一年内在巴西的两个作物区(主要生产者之一和可能的原产地)调查了腰果植物中植物磷脂的多样性和季节性。仅在丰度和多样性较高的地区对地点和季节性数据进行了物种多样性分析。在其中一个地区发现了 7 种植物精氨酸,其中Euseius concordis最普遍的物种;在另一个区域,发现了 9 个物种,其中Iphiseiodes zuluagai是最普遍的物种。植物精类全年均有发现,其种群动态受温度和鼩纲种群的影响。在干旱期记录到较低的植精胺种群密度,此时高温与降水和湿度减少有关。这一时期也恰逢鲥鱼种群密度高,仅以Lorryia formosa物种为代表。在腰果植物中发现了 12 种植物精氨酸,其中以通才植物精氨酸(III 型和 IV 型)占优势,它们不仅可以用作食草螨的生物防治剂,还可以用作小型昆虫的生物防治剂。

更新日期:2021-06-07
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