In 2019, an alert network was established to monitor soybean gall midge adult emergence using cages across 27 sites in four states. Growers and consultants can sign up to receive emergence information alerts to aid in the timing of insecticide applications.
Come and join us from 9:30 a.m. - 3 p.m. on Monday, March 2nd, at the Eastern Nebraska Research and Extension Center (1071 County Road G, Ithaca, NE) for the latest information on this newly emerging soybean pest.
Soybean gall midge infestations have been confirmed in six new Nebraska counties since 2018.Treatment is not recommended at this time, but scouting and reporting infestations will continue to be important to plan for management next year.
A significant number of soybean gall midge adults have been collected from this year’s soybean fields in east-central and northeast Nebraska. Dead and dying plants have been observed near infested sites in both northeast and east central Nebraska.
Since June 30, low levels of adult emergence have been observed from east-central and northeast Nebraska counties from last year’s soybean fields. On July 2 and July 4 adults were found emerging from this year's soybeans in east-central Nebraska.
In Nebraska, soybean gall midge larval injury to soybean has been found in most areas where adult soybean gall midge activity occurred over the past two weeks It is unlikely foliar insecticides will affect this insect.
Soybean gall midge larvae found feeding within soybean plants in east central Nebraska mean foliar applications will likely no longer be effective. In northeast Nebraska, however, they may still be effective for a short time.