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Black cutworm larvae problems have occurred in numerous Missouri corn fields. Many fields have required insecticide applications during the past two weeks as larvae reached the 4th instar stage of development and began cutting corn seedlings. Additional problems with this pest are possible for the next two weeks in those fields where corn seedlings are smaller than about the 5th leaf stage of development. Scouting should continue in all fields, but especially in late planted fields where corn seedlings are just emerging or small in size.

For more information on the black cutworm predictive model and the counties currently monitoring for black cutworm, please visit our Website at: http://ipm.missouri.edu/pestmonitoring/blackcutworm/index.htm.

Wayne Bailey
BaileyW@missouri.edu