Soybean School: Aphid Scouting, Beneficial Insect Counts & Control Tips

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Soybean aphids don’t always cause a problem thanks, in part, to effective control products. But aphid numbers are cyclical despite good control and additional control is sometimes needed. That said, the pest can be kept in check with high populations of beneficial insects present, making scouting and re-scouting a critical means of protecting the soybean crop.

Tracey Baute, field crop entomologist with Ontario Ministry of Agriculture and Food and Ministry of Rural Affairs, thinks that 2013 is gearing up to be a high-pressure soybean aphid year. Farmers need to know what they are looking for, when to be scouting and how to account for beneficial insect levels when deciding whether or not to spray. To help in that decision, Baute also encourages farmers to use the Aphid Advisor app to help with surveillance and to optimize spray timing.


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