how resistant varieties can be used as a component of manipulatingthe host in IPM?
Answers
Abstract Host-plant resistance as a management tactic involves both the exploitation of intraspecific variation in genetically based plant resistance to breed crop varieties that support lower populations of herbivores or that better tolerate injury by herbivores and the integration of said varieties with other management tactics such as insecticide applications and biological control. There are several barriers to the increased development and use of resistant cultivars in IPM. Many of these barriers arise from the complex genetic and phenotypic nature of plant resistance. In addition, insufficient attention has been given to the integration of plant resistance with other IPM tactics, and to quantifying the benefits of plant resistance in multi-tactic IPM programs
Answer:
Resistant varieties are generally genetically modified plants which contains restitant genes against host insects. This plants are prepared in laboratory with the help of biotech.This is helpful as it is permanent remedy to get rid of that attacking pests,as many a times pesticides and insecticides doesn't acts on them.