|
Plants
affected by Brown Stinkbugs will be stunted and may grow lateral shoots; leaves wrinkled; holes of various sizes,
scattered randomly or in repeating patterns often with a yellow halo; whorl
leaves wrapped tight and failing to expand. Injury is most common on newly
emerged plants through the 4th true-leaf stage, but it also may occur on
mid-whorl-stage plants. Stink bugs pierce the side of the stalk with their beak.
Saliva injected into the leaf during feeding creates holes from pinhole diameter
up to 1 inch on expanded leaves. Holes are often surrounded by dead, brown
tissue and a yellow halo. Feeding patterns are often repeated across the leaf.
Injured leaves are often twisted. Heavily injured plants that are not killed by
the feeding will grow new lateral shoots (tillers).
|
|
