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首页> 外文期刊>Journal of King Saud University >Sublethal effects of diazinon, fenitrothion and chlorpyrifos on the functional response of predatory bug, Andrallus spinidens Fabricius (Hem.: Pentatomidae) in the laboratory conditions
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Sublethal effects of diazinon, fenitrothion and chlorpyrifos on the functional response of predatory bug, Andrallus spinidens Fabricius (Hem.: Pentatomidae) in the laboratory conditions

机译：在实验室条件下，二嗪农，杀py硫磷和毒死rif对致死性小虫安达卢斯·斯皮登滕斯 Fabricius（Hem .: Pentatomidae）功能反应的亚致死作用

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The sublethal effects of diazinon, fenitrothion and chlorpyrifos on the functional response of predatory bug, Andrallus spinidens Fabricius (Hem.: Pentatomidae), a potential biological control agent, were studied on 5th-instar nymphs. The experiment was conducted in varying densities (2, 4, 8, 16, 32 and 64) of last instars larvae of Chilo suppressalis Walker (Lepidoptera: Pyralidae) as prey at 25 ± 2 °C, 60% ± 10% relative humidity (RH) and a photoperiod of 16:8 h (L: D). The results of logistic regressions revealed a type II functional response in the control and all insecticide treatments. Comparison of functional response curves revealed that tested insecticides markedly decreased the mean of preys consumed by A . spinidens . Among them, functional response curve of A . spinidens in chlorpyrifos treatment was significantly lower than the other treatments. In this study, application of insecticides caused a decrease in the attack rate and an increase in the handling time of exposed bugs compared with the control. The longest handling time (3.97 ± 0.62) and the lowest attack rate (0.023 ± 0.007) were observed in chlorpyrifos and fenitrothion treatments, respectively. The results suggested that the adverse effect of these insecticides on A . spinidens should be considered in integrated pest management programs (IPM).
机译：在第5龄若虫上研究了二嗪农，杀虫硫磷和毒死on对捕食性臭虫功能性反应安德鲁斯·斯皮尼登斯·法比迪乌斯（Hem .: Pentatomidae）的亚致死作用。在25±2°C，60％±10％相对湿度（25±2°C）的不同密度（2、4、8、16、32和64）的智利Chi蛇沃克（鳞翅目：蝇科）的最后龄幼虫中进行了实验。 RH）和16：8 h（L：D）的光周期。 Logistic回归的结果表明，对照和所有杀虫剂处理均具有II型功能性反应。功能响应曲线的比较表明，测试的杀虫剂显着降低了A所消耗的猎物的平均值。纺锤体。其中，A的功能响应曲线。毒死rif治疗中的甜菜碱含量明显低于其他治疗方法。在这项研究中，与对照相比，杀虫剂的使用降低了侵袭率，并增加了暴露的虫子的处理时间。在毒死rif和杀nitro硫酮处理中，分别观察到最长的处理时间（3.97±0.62）和最低的发作率（0.023±0.007）。结果表明，这些杀虫剂对A的不利影响。在综合病虫害防治计划（IPM）中应考虑使用刺鼻藤。

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