Now Is the Time to Take Action With Soybean Insects
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Collapse ▲In the last week or so corn earworm moth numbers having been up and now growers in the northeast corner of NC are starting to find corn earworm larva at threshold levels. If you have not already started scouting your soybean, then you need to do so. If you have threshold levels of corn earworm larva or other economically important soybean insects then it is time to treat for them. Below is the link to the light trap data from across the state, including light trap data from Camden as seen at this site. Also, Dr. Dominic has an excellent article that you can refer to on corn earworm entitled “When to Treat Earworms in Soybeans .” In this article is the calculator for determining threshold levels for corn earworm larva based on the costs of chemical plus application cost, price per bushel for soybean and the method of scouting for earworms and the row width.
Dylan Lilley, Perquimans Extension Agent, sweeping for insects in soybean at the NE AG Expo site