applicators exam iowa pesticide 2024

applicators exam iowa pesticide 2024 Most perennial weeds are best controlled with herbicides? True False - CORRECT ANSWER-False Symptoms of soil-applied photosynthesis inhibitors typically appear first on the roots? True False - CORRECT ANSWER-False In calibrating your sprayer after spraying 1/8 acre, you poured 4 1/8 gallons of water back to refill your 100 gallon tank. How many gallons of spray are you spraying? 24 GPA 43 GPA 33 GPA 31 GPA - CORRECT ANSWER-33 GPA Crop rotation and narrow crop rows are examples of cultural control? True False - CORRECT ANSWER-True Triazine herbicides are more likely to carryover on low pH soils (acid) than high pH soils (alkaline) True False - CORRECT ANSWER-False ACCase-inhibiting herbicides such as sethoxydim are primarily root inhibitors. True False - CORRECT ANSWER-False Sulfonylurea herbicides inhibit amino acid synthesis. True False - CORRECT ANSWER-True Herbicides are more likely to leach into groundwater when applied to sandy soils than soils with high organic matter? True False - CORRECT ANSWER-True Glyphosate is an example of a plant growth regulator? True False - CORRECT ANSWER-False Soil-applied herbicides are only translocated in the photosynthetic stream (Phloem). True False - CORRECT ANSWER-False White leaves (bleaching) are a symptom of pigment inhibitors? True False - CORRECT ANSWER-True Air temperature can affect vapor drift. True False - CORRECT ANSWER-True A sandy soil with 2 percent organic matter would typically require a higher rate of soil applied herbicides than a clay loam soil with 5 percent organic matter. True False - CORRECT ANSWER-False Most annual weeds germinate in the upper 1/2 inch of the soil. True False - CORRECT ANSWER-True Contact herbicides require better spray coverage that translocated herbicides. True False - CORRECT ANSWER-True Pesticides that are listed ad 1.5 EC and 90 DF contain: 1.5 gallons and 90 lbs of active ingredient. 1.5 qts. and 90 ounces of active ingredient 1.5 pints and 9 quarts of active ingredients .5 lbs per gallon and .9 lb. of active ingredient - CORRECT ANSWER-.5 lbs per gallon and .9 lb. of active ingredient Germinates in the spring, and dies in the fall of the same year? - CORRECT ANSWERSummer annual Target herbicide applications during the rosette stage - CORRECT ANSWER-Biennial Completes it's life cycle in one year and lives through winter - CORRECT ANSWERWinter annual Dandelion is an example of: - CORRECT ANSWER-Simple perennial Reproduces mainly by vegetative structures - CORRECT ANSWER-Creeping perennial The spray volume recommended for broadcast spraying is 20 GPA. If you apply the pesticide in a 15-inch band over rows that are 30 inches apart, what would be the actual volume applied on a per acre basis? 10 GPA 15 GPA 20 GPA 40 GPA - CORRECT ANSWER-10 GPA Buggy-whipping and malformed brace roots on corn are symptoms of: Seedling growth inhibitors Photosynthesis inhibitors Growth regulator herbicides Amino acid synthesis inhbitors - CORRECT ANSWER-Growth regulator herbicides A common herbicide-resistance mechanism is altered sire of action True False - CORRECT ANSWER-True What are several ways weeds reproduce? - CORRECT ANSWER-Seeds, tubers, bulbs, bulbets, rhizomes, stolons, or root pieces left over from cultivation. What is the difference between selective and nonselective herbicides? - CORRECT ANSWER-Selective herbicides kill some plant while not harming others. Nonselective herbicides kill all plants in the area they were applied. Which type of herbicide would you use in the following situation? You need to control a low-growing annual weed in a field where the c