EVALUATION OF NOVEL NANOPARTICLES AGAINST Tetranychus urticae AND ITS PREDATORY MITE Amblyseius gossipi

Journal of Agricultural Research Pub Date : 2020-08-31 DOI:10.21608/zjar.2020.110323

M. Zayed

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引用次数: 3

Abstract

The present study was carried out to evaluate the relative biological activity of six treatments. Four nanoparticles (chitosan, Hydroxyapatite, chitosan hydroxyapatite and silver hydroxyapatite), one bio-agent effective microorganisms (EMs) compared to one synthetic acricide (bifenzata) were tested against the female adults and eggs of Tetranychus urticae and its predatory mite Amblyseius gossipi using standardized method of bioassay under laboratory conditions. Effect of the tested agents on the activity of carbohydrates enzymes, total lipid and total protein content were determined. The results revealed that chitosan (NPs) showed significantly adulticidal activity against T. urticae. Furthermore, EMs was the most effective treatment on the eggs of T. urticae followed by bifenzata under laboratory conditions. Therefore, nanoparticles and EMs appeared to be highly safe and selective against Amblyseius gossipi. This study suggests the possible use of nanoparticles as safe alternatives to conventional acaricides and compatible with integrated pest management practices. They might be contribute to future applications in pest control for sustainable agriculture.

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新型纳米颗粒对荨麻疹叶螨及其捕食性螨螨的防治效果评价

本研究对6种处理的相对生物活性进行了评价。采用标准化的生物测定方法，在实验室条件下对4种纳米颗粒(壳聚糖、羟基磷灰石、壳聚糖羟基磷灰石和羟基磷灰石银)、1种生物制剂有效微生物(EMs)和1种合成杀菌剂(bifenzata)对荨叶螨及其捕食性螨长嘴浅绥螨的雌成虫和卵进行了测定。测定了各药剂对碳水化合物酶活性、总脂质和总蛋白含量的影响。结果表明，壳聚糖(NPs)对荨麻疹螨具有显著的杀虫活性。此外，在实验室条件下，EMs对荨麻疹T.虫卵的处理效果最好，其次是bifenzata。因此，纳米颗粒和EMs对长舌兰弱绥螨具有高度的安全性和选择性。这项研究提出了使用纳米颗粒作为传统杀螨剂的安全替代品并与综合虫害管理措施兼容的可能性。它们可能有助于未来在可持续农业害虫防治中的应用。

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Journal of Agricultural Research

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