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Heliothine Control in Cotton with New Chemistry

Jack Reaper, III, John D. Hopkins, Donald R. Johnson, Gus M. Lorenz, III and April M. Fisher


 
ABSTRACT

The development and evaluation of new insecticides is necessary to maintain acceptable control levels of the Heliothine species in cotton. Performances of new and traditional insecticides were evaluated with three field experiments in Jefferson Co., AR, in 2000. The objective of these experiments was to compare new and traditional insecticides in addition to determining efficacy of combinations of each for Heliothine control in cotton. Tracer provided the best seasonal Heliothine control across all experiments. Performance of S-1812 was comparable to Tracer; however, control with S-1812 was not enhanced by the addition of Orthene or Asana
XL. Tracer, Intrepid, Denim, and S-1812 provided better Heliothine control than traditional pyrethroid insecticides. The addition of Karate Z to Tracer
(0.033 lb ai/ac) provided Heliothine control equal to that of Tracer alone
(0.067 lb ai/ac). The addition of Karate Z increased the control level of Denim. The selective use of both new and traditional insectides can decrease development of Heliothine resistance and result in more effective IPM programs in cotton.





Reprinted from Proceedings of the 2001 Beltwide Cotton Conferences pp. 1122 - 1125
©National Cotton Council, Memphis TN

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Document last modified XXXXXX, XXX XX 2001