Striped blister beetle grub
- Adult: Slender beetle with a prominent head and black and orange stripes.
- Larvae: Reddish brown with dark brown bands on the thorax and abdomen. Feed on grasshopper eggs.
- Eggs: White and oval with rounded ends. Laid in tube-shaped chambers in the soil near grasshopper eggs.
Timing of damage: V2 to V6
Type of damage: Defoliation of leaves.
Scouting: Use a sweep net or drop cloth to determine the presence of beetles. Estimate the percentage of foliage loss at each point where beetles are found.
Economic threshold: Foliage loss of 35% prebloom or 15% postbloom.