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brown stink bug adult MER copy.jpg

Brown stinkbug

Description

  • Adult: Broad, flat, shield-shaped bugs that are brown on top with a yellowish underside. About ½" long.
  • Nymphs: Look similar to adults but lack wings.
  • Eggs: Round, laid in clusters and orange with a ring of white hairlike structures on the top.
     

Timing of damage: VE to R3

Type of damage: Holes in the leaves that are often ringed in yellow. Tillering, wilting and plant death can also occur.

Scouting: Examine 20 consecutive plants in each of five different locations in the field (100 plants total). Record percentage of damaged plants and level of infestation.

Economic threshold: There is no established threshold but treatment is most effective when
applied at or just after plant emergence.

Crop
Corn
Age
Adult
Color of markings
None
Timing of damage
VE-V2
V3-V6
V7-V10
V11-VT
R1-R2
R3-R4
Insect color
Brown
Insect markings
None
Insect type
Other
Insect length
1/2" to 1"
Type of damage to crop
Leaf feeding
Yellowed leaves
Tillering or wilting
Plant death
Similar Pests

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