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Controlling Heliothis spp. on cotton through the release of Trichogramma pretiosum and applications of Bacillus thuringiensis - an economic assessment

Liapis, P.S.

ESCS staff report US Dept of Agriculture Economics Statistics and Cooperatives Service: 80

1980


Accession: 013100773

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, an 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. Partial budget analysis indicates that the cost of utilizing Trichogramma or Bacillus thuringiensis as the control agent may be cost competitive. Further research is needed to determine the yield effects of the biological controls examined in this study before use recommendations can be made.

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