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Weather Forecast

May 24, 2016

SCA Update

Sugarcane and Yellow Sugarcane aphids are slowly increasing in population, and individuals and small colonies (3-4 aphids) can be seen on the mid-upper leaves. Populations remain well below thresholds.
Producers sprayed at least once for SCA in the LRGV, some sprayed twice. Some are spraying currently in Corpus as aphids build in numbers there.
The pictures below (taken today) show SCA on sorghum here in Hill County. Only a few populations this large have been seen in the fields, and these were isolated colonies (surrounding plants were clean). You can see larvae of the Scymnas ladybug (also called 'mealybug destroyer', look like fuzzy white bugs) preying on the aphids. Beneficial activity has been high.

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