Alabama: Soybean Looper is on the Loose
According to the Alabama Cooperative Extension, soybean looper numbers have been on the rise across the state.
It’s during the larval stage that the soybean looper begins to cause damage on soybean plants. North Carolina State University research indicates the soybean looper seldom causes significant pod damage, but is capable of heavy foliage injury, which is equally detrimental to yields. Defoliation caused by the soybean looper can be identified by ragged leaves. Populations typically reach peak levels late in the season in August or September.
To proactively monitor fields for soybean looper infestations, growers should scout for insect presence throughout the season. By scouting for soybean looper eggs and moths, growers can pinpoint the start of infestations and combat the pest before significant damage occurs.
Louisiana State University researchers note soybean looper has developed resistance to certain insecticide chemistries, so effective control measures are primarily limited to lepidopteran-specific insecticides. Experts advise using local economic thresholds forsoybean looper to determine when treatment is necessary.
When scouting indicates a need for treatment, Syngenta offers Besiege® insecticide, which provides excellent knockdown control of a broad spectrum of the most difficult-to-control lepidopteran pests, including the soybean looper. When applied, the long-lasting residual control found in Besiege protects plants through harvest, helping soybeans yield strong.
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