PA Pesticide Applicator Exam Lawn and Turf

An insecticide applied to control white grubs... - Should be watered in to reach the soil Annual weeds... - grow, flower, go to seed, and die within 12 months Biennial weeds... - Form a rosette of leaves the first year and flower the next Dandelions... - Have a sturdy taproot How do Chinch bugs damage turf? - They feed in clusters and damage first appears as circular patches of yellowing turf that resemble drought injury and large infestations of the southern chinch bug may completely kill St. Augustine lawns. How do you use herbicides to slow the development of resistant weeds? - 1.) Making fewer herbicide applications 2.) Using herbicides that have different modes of action 3.) Mowing to remove flowers before seeds form How does frequent mowing impact fire ants? - Frequent mowing is a control method that golf course managers use to force red imported fire ant colonies to less disturbed areas. The more times areas are mowed, the less time fire ants have to establish colonies Mole crickets... - Have only one generation per year Perennial weeds... - Can live indefinitely Sod webworms... - Spin silk webbing near the soil in turf What are 2 summer annual grasses and when is the best time to control them? - 1.) Crabgrasses 2.) Goosegrass * The best time to control these grasses is late winter/early spring What are 3 types of organisms that are used in biological control of turf insects? - 1.) Predators 2.) Parasites 3.) Pathogens What are 3 ways to find turf insects in the soil? - 1.) Scouting 2.) Sampling 3.) Monitoring What are 4 pests that might cause root damage to turf? - 1.) Japanese beetle 2.) Mole cricket 3.) Masked chafer 4.) Green june beetle What are Bactericides? - Chemicals that are used for control of bact