Management options for corn rootworm
Another preseason management option, when planting continuous corn-on-corn in regions of extremely heavy rootworm pressure, is a soil-applied insecticide in combination with an insect-protection traited-seed product might be appropriate, but Pioneer does not make this a standard recommendation.
“Corn rootworms are becoming more and more difficult to manage, so we as an industry need to be cognizant of the practices we use,” Pilcher reported. “If we want to use these practices and products long term, they need to be managed properly.”
If using a blended, in-bag refuge product is not an option for a grower then a structured refuge is required in combination with certain Bt-rootworm products. Practicing good stewardship like planting a refuge is vital in helping maintain a population of corn pests that are susceptible to resistance traits. In the long-term this will help preserve the viability of insect protection for in-plant traits.
When it comes to keeping insect control solutions for years to come, rotating products or crops are the best options. Growers can also work with their local Pioneer sales professional or DuPont Pioneer agronomist to develop a long-term plan that fits specific fields and acres.
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