1A applicator exam with 100% correct answers already graded A+.

Most perennial weeds are best controlled with herbicides? True False False Symptoms of soil-applied photosynthesis inhibitors typically appear first on the roots? True False 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 33 GPA Crop rotation and narrow crop rows are examples of cultural control? True False True Triazine herbicides are more likely to carryover on low pH soils (acid) than high pH soils (alkaline) True False False ACCase-inhibiting herbicides such as sethoxydim are primarily root inhibitors. True False False Sulfonylurea herbicides inhibit amino acid synthesis. True False True Herbicides are more likely to leach into groundwater when applied to sandy soils than soils with high organic matter? True False True Glyphosate is an example of a plant growth regulator? True False False Soil-applied herbicides are only translocated in the photosynthetic stream (Phloem). True False False White leaves (bleaching) are a symptom of pigment inhibitors? True False True Air temperature can affect vapor drift. True False 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 False Most annual weeds germinate in the upper 1/2 inch of the soil. True False True Contact herbicides require better spray coverage that translocated herbicides. True False 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 .5 lbs per gallon and .9 lb. of active ingredient Germinates in the spring, and dies in the fall of the same year? Summer annual Target herbicide applications during the rosette stage Biennial Completes it's life cycle in one year and lives through winter Winter annual Dandelion is an example of: Simple perennial Reproduces mainly by vegetative structures 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 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 Growth regulator herbicides A common herbicide-resistance mechanism is altered sire of action True False True What are several ways weeds reproduce? Seeds, tubers, bulbs, bulbets, rhizomes, stolons, or root pieces left over from cultivation.