ALFALFA
BLOTCH LEAFMINER
Blotch mines in alfalfa foliage
are caused by the Alfalfa blotch leafminer (ABLM), which pass through multiple
generations per year. In general, this leafmining fly is controlled by beneficial
wasps. If 50% or more of alfalfa leaflets exhibit blotch mines, control may be
warranted.
Corn,
Soybean, Wheat, and Alfalfa Field GuideBulletin 827