Unusually dry weather this summer has favored aphids, leading to an upsurge in various aphid species across different plants.
This trend is regionally widespread and may pose a potential threat to soybean crops. While the soybean aphid never fully disappeared, its numbers have increased due to the favorable conditions.
Soybean aphid damage may not be obvious until populations become significant. To detect early infestations, closely inspect the undersides of leaves on at least 20 plants starting from late July.
Ant activity could be an indicator of aphid presence. If at least 80% of the examined plants have 250 or more aphids, consider spraying insecticides.
It's essential to avoid premature insecticide use, as it can disrupt the balance of beneficial insects like ladybeetles that naturally control aphids. Waiting until the population threshold is met has been proven effective and economical.
Vigilance is key, so keep an eye on your soybean fields and act promptly if signs of significant aphid presence arise. By staying alert and making informed decisions, you can help protect your soybeans from potential infestations.
For more information on aphids, please visit our sister site Farms.com’s page on aphids.
Photo Credit: gettyimages-v_zaitsev
Categories: Ohio, Crops, Soybeans