Split Applications Of Soil Residual Herbicides In Corn
4 articles tagged "herbicides".
Moth flights for both black cutworm and armyworm have been impressive this spring. Unworked/untreated fields are plentiful, and so is the plant life, meaning that there has been no shortage of egg-laying opportunities for these pests. Once soils dry, there will be no luxury of time to prevent a green-bridge, that is to starve the small larvae before they switch from feeding on the dying weeds/cover crops to the emerging crop. So, should one be tempted to be proactive and add some “cheap” insecticide in with the burn-down herbicides. A few factors to consider: First, seed-applied insecticides and many varieties of Bt-traited corn offer some suppression of black cutworm. The systemic activity of the seed-applied insecticide, and/or the protein production of the Bt-corn are optimal when the corn seedling is actively growing, not so much when corn is stressed. Their performance against larger larvae, >0.5”, is greatly reduced, meaning the[Read More…]
There has been increasingly growing interest in utilizing cover crops in our corn and soybean production systems over the last several years.
Crop planting has progressed at an amazing pace over the last week. Many of these acres will also receive soil applied, residual herbicides for control of germinating weed seedlings. Soil applied pre-emergent herbicides require moisture for activation.
