Tuesday, May 24, 2016

Blacklands 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.
The pictures below (taken today) show SCA on sorghum 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 preying on the aphids. Beneficial activity has been high.