For a complete listing please consult the references at the end of this report. Infestations may go undetected until honeydew or sooty mold is observed. Aphids can cause distortion of new growth or, in extreme cases, infested plants can be stunted. Control - Aphids are relatively easy to control with many registered materials. Symptoms - Infestations are easy to detect because worms, their excrement and the damage they cause, are usually quite visible to the unaided eye.
Damage appears as holes in the center or along the edges of leaves.
Damage by worms is often confused with slug or snail damage. The only way to determine which pest is involved is to find a specimen. The adults have long bead-like antennae and their legs hang down as they fly. The larvae spin webs on the soil surface which resemble spider webs. Damage is caused by larvae feeding on roots, root hairs, leaves in contact with the soil and lower stem tissues.