Pink Bollworm Control Through Stalk Destruction

Eric T. Natwick, Robert T. Staten, Stephen L. Birdsall, and Walter Leimgruber


Three methods of cotton stalk destruction were evaluated for control of diapausing pink bollworm larvae at the University of California Imperial Valley Research and Extension Center. The cotton stalk destruction methods were the implementation of a rotary shredder versus a flail shredder as compared to a forage harvester. The rotary and flail shredders leave cotton bolls and stalks in the field after shredding to be disced into the soil while the forage harvester was used to remove as much cotton residue as possible for use in biomass electric energy generation. Residue from the forage harvester was evaluated for destruction of pink bollworm larvae and overwinter survival for larvae and emergence of moths. Infield differences of pink bollworm survival were evaluated for each stalk destruction methods.

Reprinted from 1990 Proceedings: Beltwide Cotton Production Research Conferences pp. 191 - 195
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998