European Gypsy Moth
The European Gypsy Moth is an introduced defoliating insect that is considered to be a major pest in North America. This invasive insect pest has been present in Toronto for more than twenty years.
The caterpillar, or larva stage of the insect, eats the leaves of trees making them more susceptible to disease and damage from other insects. The extent of damage can range from light to almost complete defoliation depending upon a number of factors including; the degree of the infestation, past defoliation, the current health of the tree and other environmental factors. If the tree has been weakened or stressed by other conditions, and attacked repeatedly in recent years, the defoliation can result in the death of the tree.
To protect Toronto's urban forest from gypsy moth, Urban Forestry implements an integrated pest management program in affected areas of the city.