Twardowski Jacek Piotr, Hurej Michał, Twardowska Kamila
Department of Plant Protection, Wroclaw University of Environmental and Life Sciences, Grunwaldzki Sq. 24a, 50-363 Wroclaw, Poland.
Insects. 2021 May 11;12(5):434. doi: 10.3390/insects12050434.
The sensitivity to thiacloprid and lambda-cyhalothrin ingested from prey organisms was studied in and , since the effect of ingestion exposure to these insecticides is unknown in these species. All developmental stages of the ladybirds were fed on treated with half or full field rate of the insecticides. Almost all instars were killed within 3 h of the start of ingestion of lambda-cyhalotrin-treated prey. The action of thiacloprid was more extended in time in both coccinellids and more variable between their instars. Reducing the field rate of lambda-cyhalothrin seems to have no practical value for the survival of either of the coccinellid species. Contrastingly, using half instead of the full field rate of thiacloprid may enhance the chances of survival in L1, L2, and L4 larvae of both species. Of all developmental stages tested, the survival dynamics of the adults of either species are closest to one another, whereas the apparent difference in the species response to the dose rate of thiacloprid was found in the L4 stage.
由于这些物种摄入这些杀虫剂的影响尚不清楚，因此在[具体物种1]和[具体物种2]中研究了从猎物生物中摄入噻虫啉和高效氯氟氰菊酯的敏感性。用杀虫剂半田间剂量或全田间剂量处理的[猎物名称]喂养瓢虫的所有发育阶段。几乎所有龄期在开始摄入高效氯氟氰菊酯处理的猎物后3小时内死亡。噻虫啉的作用在时间上对两种瓢虫科昆虫来说都更持久，并且在它们的龄期之间变化更大。降低高效氯氟氰菊酯的田间剂量似乎对任何一种瓢虫科物种的存活都没有实际价值。相比之下，使用噻虫啉半田间剂量而非全田间剂量可能会增加两种物种L1、L2和L4幼虫的存活机会。在所有测试的发育阶段中，两种物种成虫的存活动态彼此最接近，而在L4阶段发现了两种物种对噻虫啉剂量率反应的明显差异。
