The Evolution of USDA Forest Service Experimental Forest Research on Northern Conifers in the Northeast

‘Future Direction of USDA Forest Service Research

A. D. Wilson The USDA Forest Service has been involved in Texas oak wilt research since 1976. Despite research successes, there are still many important research areas that have not been addressed or sufficiently investigated to answer the key questions required for making sound disease management decisions. Some of the priority areas planned for future research by the Southern Hardwoods Labora...

on the status of mixed methods research in applied linguistics

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Usda Forest Service

USDA Forest Service

Wildland fire is an important disturbance agent in the western US and globally. However, the natural role of fire has been disrupted in many regions due to the influence of human activities, which have the potential to either exclude or promote fire, resulting in a ‘‘fire deficit’’ or ‘‘fire surplus’’, respectively. In this study, we developed a model of expected area burned for the western US ...

Nursery Disease Notes Usda Forest Service Northern Region Forest Health Protection

Nine different Fusarium species were isolated from Acacia koa seeds, seedpods, seedling stem and root tissues, rhizosphere soil and soil surrounding roots of diseased trees. Fusarium oxysporum, the cause of koa dieback and wilt, was not isolated from seeds or seedpods but was found most commonly on roots and soil near diseased koa seedlings. Fusarium subglutinans was the most common species iso...