Emergence inhibition, repellent activity and antifeedant responds of mineral oils against Asian citrus psyllid, Diaphorina citri (Hemiptera: Liviidae)
Emergence inhibition, repellent activity and antifeedant responds of mineral oils against Asian citrus psyllid, Diaphorina citri (Hemiptera: Liviidae)
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DOI：
10.1080/09670874.2020.1847354
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发表时间：
2020-11
影响因子：
1.5
通讯作者：
Wei Hu;Rongkun Zheng;Xiao-Jie Feng;Fan Kuang;Jiong Chun;Hanhong Xu;Tingtao Chen;Jun Lu;
中科院分区：
文献类型：
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作者：
Wei Hu;Rongkun Zheng;Xiao-Jie Feng;Fan Kuang;Jiong Chun;Hanhong Xu;Tingtao Chen;Jun Lu;
摘要柑桔木虱Diaphorina citri Kuwayama是柑桔上的一种重要害虫，它能传播黄龙病病原。在害虫综合治理计划中建议使用矿物油，以防止抗药性的发展。研究了3种正构烷烃碳数相近的矿物油对小菜蛾的羽化抑制和拒食作用。柑橘。对该虫的触杀试验结果表明，安通的毒力最强，其半数致死浓度为189 ng/只。每种矿物油在0.1，0.2，0.5%（v/v）的浓度下都能显著抑制处理过的五龄幼虫的羽化，其中0.5%（v/v）的矿物油具有较长的残留活性，在10天内抑制56%以上的成虫羽化。我们发现D.与对照组相比，用矿物油处理的柑橘树的柑橘。0.5%（v/v）的矿物油显著抑制了果蝇的摄食。蜜露减少39-68%的柑桔成虫和取食不同浓度处理的柑桔叶片的柑桔成虫，头和上翅向上隆起，形成半直立姿态。研究表明，矿物油可通过驱避、减少取食、抑制羽化等方式有效地减少或抑制HLB值的传播，从而减少D。Citri populations.
Abstract Diaphorina citri Kuwayama is a serious insect pest of citrus worldwide due to the capacity to transmit causal agent of the huanglongbing. Mineral oils are recommended in the integrated pest management programs to prevent resistance development. The primary objective of this study was to determine emergence inhibition and antifeedant effect of three mineral oils with similar n-paraffin carbon number against D. citri. The results of topical contact toxicity showed that Antong was the most toxic with 50% lethal concentration value of 189 ng/insect. Each mineral oil at the concentrations of 0.1, 0.2 and 0.5% (v/v) significantly inhibited the emergence of adults from treated fifth-instar nymphs, and 0.5% (v/v) of the oils had a long residue activity that they inhibited over 56% adult emergence up to 10 days. We found significant repellency of D. citri from citrus tree resets that were treated with mineral oils compared with control. 0.5% (v/v) of the mineral oils significantly inhibited feeding of D. citri adults with reduction of 39–68% honeydew, and the nymphs that fed on citrus leaves treated with different concentrations raised heads and upper abdomens to form a half-erect posture. Our studies indicated that mineral oils could effectively reduce or suppress the spread of HLB by repellency and less feeding, as well as emergence inhibition to reduce D. citri populations.