Effects of chlorantraniliprole on the development, fecundity and prey consumption of a non-specific predator, Rhynocoris fuscipes (Hemiptera: Reduviidae)
文献类型： 外文期刊
作者： Liu, Pingping 1 ; Chen, Zepeng 3 ; Lin, Birun 1 ; Shen, Huifang 1 ; Zhang, Jingxin 1 ; Pu, Xiaoming 1 ; Sun, Dayuan 1 ; Yang, Qiyun 1 ; Deng, Haibin 2 ;
作者机构： 1.Guangdong Acad Agr Sci, Minist Agr & Rural Affairs, Guangdong Prov Key Lab High Technol Plant Protect, Inst Plant Protect,Key Lab Green Prevent & Control, Guangzhou 510640, Peoples R China
2.Guangdong Inst Tobacco Sci, Shaoguan 512023, Peoples R China
3.China Natl Tobacco Corp Guangdong Co, Guangzhou 510610, Peoples R China
关键词： Reduviid bug; Rhynocoris fuscipes; Transplant treatment; Chlorantraniliprole; Agrotis ipsilon
期刊名称：ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY （ 影响因子：6.2； 五年影响因子：6.3 ）
ISSN： 0147-6513
年卷期： 2024 年 279 卷
页码：
收录情况： SCI
摘要： Transplant treatment with chlorantraniliprole (CAP) is a proactive approach to protect transplanted plants from pests during early establishment and has been comprehensively applied in tobacco fields in Guangdong Province, China. However, it is not known whether the high dose of CAP in transplant treatments has lethal or sublethal effects on the generalist predator Rhynocoris fuscipes Fabricius (Hemiptera: Reduviidae). To address this concern, the mortalities of R. fuscipes were assessed when 2nd instar larvae of R. fuscipes were in direct contact with or consuming CAP and when their eggs were exposed to CAP. Furthermore, 2nd instar nymphs R. fuscipes were longterm exposed to CAP until they reached adulthood, and their life table parameters were determined. After exposure to CAP, the activity of detoxification enzymes (P450, CaeE and GST) and the functional respond of R. fuscipes to their preys Agrotis ipsilon larvae were determined. In this study, CAP at all concentrations did not significantly increase the mortality of 2nd instar of R. fuscipes nymphs in comparison with the control. The detoxification enzyme (P450, CarE and GST) activities and the number of A. ipsilon larvae consumed by R. fuscipes in the transplant treatment were not affected by CAP after 3-d or long-term exposure. These results indicated that CAP was harmless to R. fuscipes according to IOBC protocols. However, during the treatment of 2nd instar nymphs with a label rate of 15 g AI/ha and a 5 x label rate of 75 g AI/ha, CAP significantly prolonged the pre-adult and pre-oviposition periods, and treated adults had lower oviposition. Attention should be given to the time interval between transplant treatment and the release of this biocontrol agent into the field to minimize the impact of CAP on the predator R. fuscipes .
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