Ornamental/turf Pesticide Applicator's Licence Exam Study Guide Questions & Answers!!

What are some ways to control Dollar spot? {Ans: 1.) Select turfgrass cultivars that exhibit resistance to dollar spot 2.) Fertilize to avoid nitrogen deficiencies and to reduce disease severity 3.) Irrigate during early morning hours to limit high periods of high humidity and leaf wetness 4.) Mow at correct height}When is the best time to control biennial weeds? {Ans: The best time to control them is in their first year of growth}What does Volatilization mean? {Ans: A change from liquid to vapor of the chemical formulation that you are using}What is a Resistant cultivar? {Ans: Cultivars of turf grass that appear to have natural resistance or or tolerance to insect pests}What is Plant Susceptibility? {Ans: Killing or injuring of a plant by a herbicide}What is Gray leaf spot? {Ans: Very common disease of St. Augustine grass and occurs in very hot, humid weather and is generally more severe in newly established turf areas, in shady locations, and in locations with poor air movement. The fungus forms spores that are very easily spread by wind and moisture or by equipment movement and other human activities}What are 4 pests that might cause root damage to