Crankerworms

Name: Cankerworms
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Geometridae
Genus: Paleacrita
Species: P. vernata

Habitat:
Cankerworms (aka Inchworms) are common on shade trees in late spring.

Food:
They feed on the leaves of many different hardwood trees, including oaks, elms, apples, cherries, hickories, maples, ashes, beeches and lindens. In addition, large caterpillars often spin down on silk threads from large trees and feed on dogwood flowers, rose buds and other landscape ornamentals.

Method of Travel:
Crawling

Prevention:
1. Landscape plant problems are most effectively managed with regular inspections and monitoring.
2. Prevent two consecutive years of defoliation – spraying and banding are usually necessary.

Steps to control:
1. Fertilize. Slow release tree fertilizer will help trees recover from cankerworm outbreaks. Routinely fertilized trees will be better able to withstand future stresses and insect outbreaks.
2. Good, long lasting, low-toxic methods of insect control can be done with Knock Down Indoor and Plant Flying & Crawling Insect Killer or other Knock Down products listed below.

Product to use:

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