European corn borer control with Bacillus thuringiensis standardized as corn borer international units |
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| Authors: | R.E. Lynch L.C. Lewis E.C. Berry J.F. Robinson |
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| Affiliation: | Corn Insects Research Unit, Agricultural Research Service, United States Departmentof Agriculture, Ankeny, Iowa 50021 USA |
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| Abstract: | Bacillus thuringiensis products (Dipel and Thuricide HPC) were standardized against the European corn borer, Ostrinia nubilalis, by using standard bioassay techniques. When they were applied on an international unit basis for control of the corn borer on field corn, the granular formulations gave better control of the corn borer than did the spray formulations. |
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