摘要
从作物－昆虫－杀虫药剂三者之间的有机关系讨论了害虫的化学防治与作物抗虫性的相互关系。植物体内的某些次生性物质常是抗虫性利用的重要机制之一，这些次生性物质可以诱导昆虫体内的解毒酶系，而该酶系又能降解化学防治施用的杀虫药剂，从而加强害虫的抗药性。具有抗药性的昆虫由于含有大量的解毒酶系，会使某些抗虫品种对该昆虫种群的抗性降低甚至丧失。此外，杀虫药剂还可通过改变作物本身的生理生化代谢过程、营养质量以及次生性物质的产生，进而影响昆虫与寄主植物以及与杀虫药剂之间的关系。
Interactions between chemical control and crop resistance to insects were reviewed based on the relationship among crops-insects-insecticides. Plant allelochemicals is one of the most important mechanisms in crop resistance to insects. These plant allelochemicals can induce the compound-metabolizing enzymes of insects, which can metabolize the insecticides used in insect pest control and increase the insect resistance to insecticides.Resistant insects containing a lot of compound-metabolizing enzymes can well adapt to the crop varieties resistant to them. In addition, insecticides can affect the relationship between crops and insects through altering the progresses of crop physiology and biochemistry, quality of nutrition for insects and production of plant allelochemicals.
出处
《中国农业大学学报》
CAS
CSCD
北大核心
1998年第1期75-82,共8页
Journal of China Agricultural University
基金
国家自然科学基金!39370475
关键词
化学防治
作物抗虫性
杀虫剂
害虫
chemical control
crop resistance to insects
plant allelochemicals
insecticide reslstance
