Pest Type: Insect
Damage to Plant: Large, roughly oval holes are chewed in leaves and flowers. As they feed, the beetles can spread bacterial wilt and a mosaic virus.
The various species of these 1/4 inch long beetles are yellowish green, with black spots or stripes. The slim, white larvae, about 1/2 inch long, are dark at both ends. Larvae feed on roots; adults-the more destructive stage-chew aboveground plant parts.
Life Cycle: When the weather warms in spring, beetles lay eggs beneath host plants, either at plant bases or in cracks in the soil. Larvae burrow into the soil and feed on roots, then pupate. Adults overwinter in debris. There are one to four generations a year.