|KNUTSON, ALLEN - Texas A&M University|
Submitted to: Book Chapter
Publication Type: Book / Chapter
Publication Acceptance Date: 5/4/2016
Publication Date: 10/1/2016
Citation: Knutson, A., Suh, C.P. 2016. The role of replaceable and density-dependent mortality in assessing augmentative releases of Trichogramma in U.S. cotton. In: Vinson, S.B, Greenberg, S.M., Liu, T.-X., Rao, A., Volosciuk, L.F., editors. Biological Control of Pests Using Trichogramma: Current Status and Perspectives. China: Northwest A&F University Press. p.394-404.
Technical Abstract: Although augmentation of Trichogramma wasps is rarely used in cotton production in the U.S., the insights gained from prior Trichogramma research in U.S. cotton provide insight on the potential of augmenting Trichogramma in other crops and production regions of the world. In this chapter, we provide a broad overview of the mortality factors impacting cotton bollworm and tobacco budworm populations in U.S. cotton, and follow with a short historical perspective on Trichogramma augmentation as a management tool for these insect pests in U.S. cotton. We also discuss the concepts of irreplaceable and density-dependent mortality in the context of Trichogramma augmentation. Finally, we provide some insight where augmentation of Trichogramma may have a role in cotton pest management.