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Resistance to avermectins: extent, mechanisms, and management implications
J M Clark1, J G Scott, F Campos
1Department of Entomology, University of Massachusetts, Amherst 01003.
Annual Review of Entomology
|January 1, 1995
Summary
Abamectin resistance in pests is complex, involving multiple genetic and biochemical factors. Understanding these mechanisms is crucial for effective pest control and resistance management strategies.
Area of Science:
- Agricultural Science
- Entomology
- Biochemistry
Background:
- Avermectins, like abamectin, are natural compounds with significant pesticidal activity.
- Their novel mode of action makes them valuable for pest control and managing insecticide resistance.
- Resistance to abamectin has been observed in key agricultural pests.
Purpose of the Study:
- To investigate the genetics and biochemical mechanisms of abamectin resistance in insects.
- To evaluate the effectiveness of synergists and cross-resistances to other insecticides.
- To provide information for effective resistance management of abamectin.
Main Methods:
- Gathering data on abamectin resistance from three resistant insect species.
- Analyzing genetic factors (autosomal, recessive, polygenic).
- Identifying biochemical resistance mechanisms (excretion, metabolism, penetration, target site alteration).
Main Results:
- Abamectin resistance is typically autosomal, recessive, and polygenic in studied insects.
- Multiple resistance mechanisms, both major and minor, contribute to abamectin resistance.
- The potential for resistance selection necessitates moderate use of abamectin.
Conclusions:
- Abamectin resistance is inevitable, with the primary concern being when and how it develops.
- Understanding resistance genetics and mechanisms is key to sustainable pest control.
- Informed implementation of this knowledge can aid in managing abamectin resistance.