Controlling 'Heliothis spp.' on Cotton Through the Release of 'Trichogramma pretiosum' and Applications of 'Bacillus thuringiensis' - An Economic Assessment

摘要

This study examines the cost effectiveness of employing biological controls to control Heliothis spp. on cotton in the Delta area of Mississippi. The biological controls examined are: (a) the release of Trichogramma, and egg parasitoid, (b) the use of Bacillus thuringiensis, a bacterial agent, and (c) the joint use of Bacillus thuringiensis and Trichogramma. The cost of employing the biological agents are compared to the cost of employing conventional material, and break-even yields are determined.