. Cottage country : an environmental manual for cottagers. Cottages; Vacation homes; Environmental protection; Pollution. luisUrn Tent Caterpillar ^^â ^. I'lires! Tent Caterpillar Controlling Other Pests What other insects may need control? The following section discusses the most common ones â with tips on keeping their numbers down Eastern Tent Caterpillars Althougli this native insect prefers to feed on apple and cherry, it also attacks a wide variety of deciduous trees and shrubs. The larvae or caterpillars are about 50 mm long; they are clearly marked with a white stripe down their back a
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. Cottage country : an environmental manual for cottagers. Cottages; Vacation homes; Environmental protection; Pollution. luisUrn Tent Caterpillar ^^â ^. I'lires! Tent Caterpillar Controlling Other Pests What other insects may need control? The following section discusses the most common ones â with tips on keeping their numbers down Eastern Tent Caterpillars Althougli this native insect prefers to feed on apple and cherry, it also attacks a wide variety of deciduous trees and shrubs. The larvae or caterpillars are about 50 mm long; they are clearly marked with a white stripe down their back and have tufts of long, liglit-brown hair. This caterpillar rarely causes extensive economic damage. Tlie trees they attack are of little commercial value, and trees are rarely killed. Control without pesticides can be achieved by: 1. Pruning and destroying egg masses during the winter when they are easily collected; and 2. Pulling the tent from the branch with a gloved hand, or cutting the branch off and burning it. When the caterpillars begin to appear in mid-May insecticides can be used. For detailed information, write Public Information Centre, Environment Ontario, Suite 100, 135 St. Clair Avenue West, Toronto M4V IP5 or contact your regional or district ministiy office. Forest Tent Caterpillars This is a widely distributed insect that feeds on poplar, sugar maple, oak, ash and birch trees. Its life cycle is similar to that of the eastern tent caterpillar. AlthouglT this species is referred to as a tent caterpillar, it does not make a tent. Instead, it makes a silken mat on a branch of the tree where many caterpillars congregate to rest or molt. Full-grown caterpillars are quite attractive, with long tufts of hair, a blue stripe running the length of each side and a row of white diamond- shaped spots along the middle. After six weeks of feeding, the caterpillar finds a sheltered place in which to spin a cocoon and then pupate. Eggs are laid in rings around twigs. Control w