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MDARD 3B Ornamental Pest Management Practice Exam

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With a product label calling for 5 quarts per 1000 sq ft at 2 gpa, how much product and water are needed to treat 500 sq ft?
Correct Answer:
2-1/2 quarts of product and 1 gallon water
Explanation:
Rates on labels scale with area, so you adjust the amounts proportionally when treating a smaller area. The product rate is 5 quarts per 1000 sq ft, so for 500 sq ft you’re treating half the area, which uses half the product: 5 × 0.5 = 2.5 quarts. The water rate is 2 gallons per 1000 sq ft, so for 500 sq ft you also use half the water: 2 × 0.5 = 1 gallon. Therefore, you need 2-1/2 quarts of product and 1 gallon of water.

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