soybean thrips MER 2.jpg

Soybean thrip


  • Adult: Small slender-bodied insects that are dark brown with yellow stripes and have a set of hair-fringed wings.
  • Nymphs: Similar to adults but white to orange-yellow, smaller and wingless.
  • Eggs: Oblong and laid singly on plant leaves. 

Timing of damage: V1 to R7

Type of damage: Tiny pale-colored scars on the leaves and leaf discoloration or mottling.

Scouting: Sample five areas of the field. Check leaves for mottling and inspect the undersides of leaves with a hand lens to determine the presence of thrips.

Economic threshold: More than 75% of trifoliolates are damaged, with eight thrips present per leaf.

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