Insecticide drift deposition on noncrop plant surfaces and its impact on two beneficial nontarget arthropods, Aphidius colemani viereck (Hymenoptera, Braconidae) and Coccinella septempunctata L. (Coleoptera, Coccinellidae)

被引:12
作者
Langhof, M
Gathmann, A
Poehling, HM
机构
[1] Univ Hannover, Inst Plant Dis & Plant Protect, D-30419 Hannover, Germany
[2] Rhein Westfal TH Aachen, D-52056 Aachen, Germany
关键词
lambda-cyhalothrin; drift deposition; field margin; fluorescent tracer; risk assessment;
D O I
10.1897/04-504R.1
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Drift of the pyrethroid insecticide X-cyhalothrin into field margins bordering wheat and its effect on nontarget arthropods was investigated under field conditions. Insecticide deposition on leaf surfaces of broad beans exposed within field margins at 1-, 2-, and 3-m distance from the field edge and directly within the crop was quantified using a fluorescent tracer. The toxicity of leaf deposits to the aphid parasitoid Aphidius colemani Viereck (Hymenoptera: Braconidae) and to larvae of the ladybird Coccinella septempunctata L. (Coleoptera: Coccinellidae) was estimated. Mean corrected mortalities of A. colemani were < 50% (I m) and < 30% (2 and 3 m), and mortalities of C septempunctata larvae were <= 80% (1 m), <= 67% (2 m), and <= 52% (3 m) 12 and 24 h postexposure to drift deposits. High positive correlation coefficients proved the relationship between leaf deposits and mortalities of test organisms. The connection of drift deposit measurement and exposure bioassay provides a promising approach to determining effects of insecticide drift on nontarget arthropods. However, due to the patchiness of drift deposition on noncrop plant surfaces, risks to nontarget arthropods at defined distances from the sprayed crop are not highly predictable.
引用
收藏
页码:2045 / 2054
页数:10
相关论文
共 47 条
[31]  
1034:EOLSSA&gt
[32]  
2.3.CO
[33]  
2]
[34]   Analytical techniques for quantifying direct, residual, and oral exposure of an insect parasitoid to an organophosphate insecticide [J].
Longley, M ;
Stark, JD .
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY, 1996, 57 (05) :683-690
[35]  
MAISE S, 1996, NEW STUDIES ECOTOXIC, P45
[36]   Field margins in northern Europe: their functions and interactions with agriculture [J].
Marshall, EJR ;
Moonen, AC .
AGRICULTURE ECOSYSTEMS & ENVIRONMENT, 2002, 89 (1-2) :5-21
[37]   Bt sweet corn and selective insecticides: Impacts on pests and predators [J].
Musser, FR ;
Shelton, AM .
JOURNAL OF ECONOMIC ENTOMOLOGY, 2003, 96 (01) :71-80
[38]  
Nentwig W., 1992, Zeitschrift fur Pflanzenkrankheiten und Pflanzenschutz, P33
[39]   Impact of lambda-cyhalothrin on intraguild predation among three mite predators [J].
Provost, C ;
Coderre, D ;
Lucas, É ;
Bostanian, NJ .
ENVIRONMENTAL ENTOMOLOGY, 2003, 32 (02) :256-263
[40]  
RAUPACH MR, 2000, 2900 COMM SCI IND RE