Mostafiz Md Munir, Hassan Errol, Shim Jae-Kyoung, Lee Kyeong-Yeoll
Division of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu 41566, Korea.
School of Agriculture and Food Sciences, The University of Queensland Gatton, Queensland 4343, Australia.
Insects. 2020 Jun 18;11(6):377. doi: 10.3390/insects11060377.
Benzoates (naturally occurring plant toxins) produce pesticidal effects on various pest insects and mites, but their effects on non-target insects are poorly understood. In this study, we evaluate the lethal and sublethal toxicity of methyl benzoate (MB) to adults of the generalist predatory bug (Reuter) (Hemiptera: Miridae). To assess lethal effects, was exposed to plant surfaces treated with 0.25%, 0.5% and 1% MB, as well as negative and positive controls (water and the neonicotinoid acetamiprid, respectively). Exposure to 1% MB resulted in the highest corrected mortality of 17.8% and 13.3% under laboratory and greenhouse conditions, respectively. Thus, 1% MB can be classified as harmless to according to the International Organization for Biological Control rating scheme. At the sublethal level, MB exposure did not significantly affect the consumption of eggs of the whitefly by relative to negative control feeding rates. In contrast, acetamiprid at the manufacturer's recommended concentration reduced feeding activity by 45.4%. Furthermore, in a Y-tube olfactometer assay, there were no significant differences between the olfactory responses of to MB concentrations and the negative control (water). This study therefore suggests that MB could be used safely for pest control in combination with .
苯甲酸盐（天然存在的植物毒素）对多种害虫和螨类具有杀虫作用，但其对非靶标昆虫的影响却知之甚少。在本研究中，我们评估了苯甲酸甲酯（MB）对多食性捕食蝽（Reuter）（半翅目：盲蝽科）成虫的致死和亚致死毒性。为评估致死效应，将其暴露于用0.25%、0.5%和1% MB处理过的植物表面，以及阴性和阳性对照（分别为水和新烟碱类杀虫剂啶虫脒）。在实验室和温室条件下，暴露于1% MB分别导致最高校正死亡率为17.8%和13.3%。因此，根据国际生物防治组织的评级方案，1% MB可被归类为对无害。在亚致死水平上，相对于阴性对照的取食率，暴露于MB对捕食蝽取食烟粉虱卵的行为没有显著影响。相比之下，制造商推荐浓度的啶虫脒使捕食蝽的取食活动降低了45.4%。此外，在Y型嗅觉仪试验中，捕食蝽对MB浓度的嗅觉反应与阴性对照（水）之间没有显著差异。因此，本研究表明，MB可与捕食蝽安全地联合用于害虫防治。
