BUD BLIGHT
Description: Bud blight
is a virus disease transmitted by thrips. Damage is usually confined to the perimeter
of the field. Seedling infections result in severe stunting, shortened internodes,
curving of the terminal bud to form a crook, and a brown discoloration of the
pith near the nodes. Buds become brittle and fall off and leaves become rugose
and bronzed. Plants stay green and do not mature. Do not confuse with herbicide
injury.
Location: Throughout
Ohio.
Time of infection: Seedlings
through adult plants.
Virus symptoms vary on
different soybean varieties and more than one virus can infect a plant. Laboratory
analysis is necessary for determining which virus is responsible for the disease.
Corn,
Soybean, Wheat, and Alfalfa Field GuideBulletin 827