This past week we learned of a producer in a northwestern Indiana county that gambled by not protecting his continuous-corn from rootworm.
John Obermeyer
Our faithful pheromone trappers are back in business, as they are now monitoring for the emergence of western bean cutworm moths from the soil.
Japanese beetle are emerging and can be seen throughout the state on corn and soybean plants.
2018 Western Bean Cutworm Pheromone Trap Report
https://extension.entm.purdue.edu/newsletters/pestandcrop/wp-content/uploads/sites/2/2018/06/Figure-31.jpg
Pheromone trapping began for western bean cutworm moths this week. Within just one day several cooperators were reporting catches. This is just the beginning of an extended moth emergence and flight, with their peak activity expected 2-3 weeks from now.
Take a gander at the “Armyworm Pheromone Trap Report.” The number of moths suddenly flying this week has us wondering where females will lay their eggs?
Locally, we found Japanese beetle adults on Monday, June 11, in field crops and flying around campus. This is certainly earlier than normal, as we typically think of them emerging more toward the end of June.
Grubs of the Asiatic garden beetle have been recently found damaging corn seedlings in northern Indiana counties.
Armyworm moth captures have varied throughout the state (see “Armyworm Pheromone Trap Report”). As I observed last week in Tippecanoe County, when larvae are small, their damage is negligible and easily overlooked.
Pest&Crop newsletter -
Department of Entomology
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West Lafayette, IN 47907
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