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Sp678 Forest Management Strategies To Minimize The Impact Of The Gypsy Moth, The University Of Tennessee Agricultural Extension Service
Sp678 Forest Management Strategies To Minimize The Impact Of The Gypsy Moth, The University Of Tennessee Agricultural Extension Service
Forestry, Trees, and Timber
Use of silviculture to manage gypsy moth effects gives foresters additional tools for developing integrated pest management programs. Silvicultural actions should be taken prior to gypsy moth outbreaks to reduce or minimize the potential damage that arises in stands vulnerable to gypsy moth. Three approaches to reduce stand susceptibility to gypsy moth are applicable. First, change the stand composition by reducing the proportion of favored species and increasing the number of non-favored species in the stand. This can be accomplished through intermediate thinning treatments. The percentage of favored species that remain should be less than 30 percent of total composition. …
Sp503-H Beech Scale, A Potential Threat In The Landscape, The University Of Tennessee Agricultural Extension Service
Sp503-H Beech Scale, A Potential Threat In The Landscape, The University Of Tennessee Agricultural Extension Service
Forestry, Trees, and Timber
The beech scale (Cryptococcus fagisuga Lindinger) was first found in the U.S. in Massachusetts and Maine in the 1930s. This European insect feeds on American and European beech by inserting its long, needle-like, piercing-sucking mouthparts (or stylets) through the smooth bark, where the scale remains stationary throughout its life. This persistent feeding can stress the tree, especially during drought conditions, and reduce the overall vigor and quality of beech. However, it is this insect’s association with two species of fungi, Nectria galligena (a native fungus) and Nectria coccinea var. faginata (an introduced European fungus), that can cause mortality …