Ornamental and Shade Tree Pesticide (PA Category 6) Questions and Answers Already Passed

Ornamental and Shade Tree Pesticide (PA Category 6) Questions and Answers Already Passed Define "Vapor Drift" and what impacts it most The movement of pesticide as a gas or vapor during or after an application; Temperature and Volatility Define "Particle Drift" and what impacts it most The movement of fine particles through the air when pesticide is applied; Droplet size and Wind What hand lens magnification is recommended for insect identification? 5 to 10 power Define "Phytotoxicity" A toxic effect by a compound on plant growth What can be used during a tree injection to treat a tree more quickly and increase its ability to take up the pesticides? Pressure What is an important cultural control method? A. The use of biorational pesticides B. The use of pest resistant material C. The use of predatory insects B. The use of pest resistant material What are common winter annual weeds? Common chickweed, henbit, field pennycress, hairy bittercress Disease management in ornamentals can be improved by: Dormant pruning, disease resistant varieties, bed rotation Best describe a sod webworm larva? Flesh or gray color with small distinct black dots Algae problems in greenhouses can be controlled by: Treatment with copper sulphate Small, green or brown insects which jump or fly when disturbed are: Leafhoppers Why is it beneficial to prune shrubs? Pruning opens up the canopy and allows air to circulate around the leaves; less moisture reduces conditions favorable to disease Why might you recommend resistant varieties of plants? Resistant varieties are designed to reduce insect and disease pressure on a plant; having resistant varieties also helps reduce stress on surrounding non-resistant plants by lowering host availability Why do USDA hardiness zones tell us? The USDA hardiness zone are established based on average winter temperature for a given area and a plant's ability to survive the winter at these temperatures. What are the steps for managing a problem area in a landscape? 1) Identify the plant 2) Knowledge of the problem 3) Combine information from the plant ID and the knowledge of problem 4) Make diagnosis 5) Take action 6) Evaluate results What do the specific characteristics of an herbicide mean