RECOGNIZING TREE DISEASES AND STRESS …

Dr. Sharon M. Douglas Department of Plant Pathology and Ecology The Connecticut Agricultural Experiment Station 123 Huntington Street, P. O. Box 1106 New Haven, CT 06504 Phone: (203) 974-8601 Fax: (203) 974-8502 Email: RECOGNIZING tree DISEASES AND STRESS FACTORS tree health problems in Connecticut are associated with a number of abiotic and biotic factors. I. STEPS FOR disease PREVENTION AND CONTROL: A. Diagnosis- knowing what you're trying to control; accurate diagnosis is critical for successful disease control; B. Assessing the Severity of the Problem- 1. Nature of pest problem- type of disease , , root vs. foliar, systemic vs. localized 2. Level of disease - loss threshold, , amount of disease , number of years with problem; number of trees affected C. Control Options- 1. Culture: this includes cultural methods that modify the plant's growing conditions; maintaining optimum plant vigor by proper site selection, proper watering and fertilizing; avoiding mechanical injuries and soil compaction; appropriately timed pruning and transplanting, adequate spacing between plants, improving tilth and pH of the soil; 2.

3 broad range of deciduous and evergreen trees and shrubs; effects are particularly severe on seedlings or recent transplants but established plants are also affected;

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  Disease, Tree, Stress, Recognizing, Recognizing tree diseases and stress

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