Comparative susceptibility of thirteen selected pesticides to three different insect egg parasitoid Trichogramma species
Comparative susceptibility of thirteen selected pesticides to three different insect egg parasitoid Trichogramma species
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十三种选定农药对三种不同虫卵寄生蜂赤眼蜂的敏感性比较
DOI：
10.1016/j.ecoenv.2018.09.050
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发表时间：
2018-12-30
影响因子：
6.8
通讯作者：
Yu, Caihong
中科院分区：
文献类型：
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作者：
Cheng, Shenhang;Lin, Ronghua;Yu, Caihong
赤眼蜂是许多鳞翅目昆虫不可缺少的天敌，在害虫综合治理中发挥着重要作用。通过实验室研究比较了三种赤眼蜂卵寄生蜂对十种常用杀虫剂和三种除草剂的敏感性。松毛虫赤眼蜂Trichogramma dendrolimi、赤眼蜂T. chilonis和T.通过玻璃瓶残留法将鸵鸟暴露于上述农药。在4种烟碱类化合物中，呋虫胺和噻虫嗪对松毛虫赤眼蜂和松毛虫赤眼蜂有极强的毒杀作用。chilonis，风险商（RQ）值范围为1471.2至5492.5。然而，这两种烟碱类化合物对T.鸵鸟亚科的RQ值分别为433.6和915.4。此外，吡虫啉和啶虫脒对所有供试的寄生蜂均表现为轻度至中度毒性，其RQ值均小于500。在拟除虫菊酯类化合物中，除氯氟氰菊酯对赤眼蜂有较强的毒性外，其余化合物对赤眼蜂均表现为轻度至中度毒性。dendrolimi和T. Chilonis，RQ值分别为2567.6和3950.4。在三种除草剂中，二甲戊乐灵，仲丁灵和敌草胺对卵寄生蜂有轻微至中度毒性，所有RQ值均低于1000。对于两种阿维菌素，阿维菌素对所有三种黄蜂都有轻微至中度毒性，RQ值分别为635.6、148.3和254.2。然而，甲氨基阿维菌素苯甲酸盐被认为是安全的寄生蜂。此外，T. Dendrolimi的敏感性高于T. chilonis和T.基于LR 50（导致50%死亡率的施用率）值的比较，测定了玉米螟对农药的耐受性。本研究结果为害虫综合治理中实施生物和化学防治策略提供了信息数据。
The parasitoid Trichogramma species are indispensable natural enemies of many lepidopterans and it plays an important role in integrated pest management (IPM) programs throughout the world. Laboratory studies were conducted to compare the susceptibility of three Trichogramma egg parasitoid species to ten common insecticides and three herbicides. The adults of Trichogramma dendrolimi, T. chilonis, and T. ostriniae were exposed to the above-mentioned pesticides by a glass-vial residue method. Among the four neonicotinoids, dinotefuran and thiamethoxam exhibited extremely toxic effects on the Trichogramma dendrolimi and T. chilonis, with Risk Quotient (RQ) values ranging from 1471.2 to 5492.5. However, these two neonicotinoids have a relatively low toxicity to T. ostriniae, with RQ values 433.6 and 915.4, respectively. In addition, Imidacloprid and acetamiprid were slightly to moderately toxic to all the tested parasitic wasps and their RQ values are less than 500. For pyrethroids, all the selected compounds were slightly to moderately toxic to three Trichogramma species except that cyhalothrin was dangerously toxic to T. dendrolimi and T. chilonis, with RQ values 2567.6 and 3950.4. Among the three herbicides tested, pendimethalin, butralin and napropamid were slightly to moderately toxic to egg parasitoids, with all RQ values below 1000. For two avermectins, abamectin were slightly to moderately toxic to all three wasps with RQ values 635.6, 148.3 and 254.2, respectively. However, emamectin benzoate was found to be safe for the parasitoids. Furthermore, T. dendrolimi showed higher sensitivity than T. chilonis and T. ostriniae to the pesticides based on the comparison of LR50 (application rate causing 50% mortality) values. The present results provide informative data for implementing biological and chemical control strategies in integrated pest management.