Managing forests for gypsy moth (Lymanria dispar L.) using silviculture: Testing the effectiveness of silvicultural treatments in reducing defoliation and mortalityThis article is part of a larger document. View the larger document here.
Invasion of eastern forests by the exotic insect, gypsy moth (Lymantria dispar L.), has resulted in widespread defoliation and subsequent tree mortality. Disturbance from these factors varies widely across the landscape; some stands have little or no mortality while other stands have almost complete mortality. With average mortality rates of 25 to 35 percent, silvicultural treatments have been proposed as an alternative to insect suppression treatments to minimize gypsy moth effects. Study objectives were: 1) to evaluate the effectiveness of two silvicultural treatments (presalvage and sanitation thinnings) in minimizing gypsy moth effects on forests; and 2) to determine the mechanisms involved in silviculturegypsy moth interactions. Only the first objective will be addressed in this presentation.