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Slug

Description

  • Adult: Slimy, soft-bodied, gray or mottled, legless mollusk.
  • Larvae: Like adults but smaller.
  • Eggs: Clusters of eight to 60 clear jellylike eggs laid on the ground in sheltered areas. 
     

Timing of damage: VE to V8

Type of damage: Ragged holes in leaves or leaves that appear shredded, starting with the lower plant. Look for silvery slime trails on leaves or ground; this is a telltale sign of slugs.

Scouting: Examine 20 plants in five separate locations. Note the number of damaged plants and estimate the percentage of defoliation.

Economic threshold: None established but treatment may be warranted if leaves are severely defoliated, the field has a grayish cast and the stand is threatened.

Crop
Corn
Age
Adult
Color of markings
None
Timing of damage
VE-V2
V3-V6
V7-V10
Insect color
Gray
Insect type
Other
Insect length
1" to 1-1/2"
1-1/2" to 2"
More than 2"
Type of damage to crop
Leaf feeding
Similar Pests

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