When spraying trees and shrubs with a hand boom, the amount of spray that should be applied is

When spraying trees and shrubs with a hand boom, the amount of spray that should be applied is

• A. 100 gallons per acre
• B. 200 gallons per acre
• C. 300 gallons per acre
• D. 400 gallons per acre

Answer: (B)

Spray volume is about getting even, thorough coverage on the plant surfaces with the sprayer you’re using. For spraying trees and shrubs with a hand boom, about 200 gallons per acre is the typical target because it provides enough water to wet both the upper and inner parts of moderately dense canopies, including undersides of leaves where pests or diseases may hide. If you apply too little, like 100 gallons per acre, you risk under-wetting and leaving some areas untreated, which can reduce control. If you use too much, such as 300–400 gallons per acre, you increase the chance of runoff, drift, plant stress, and unnecessary chemical costs. In practice, you calibrate your equipment to hit that 200 gpa target by adjusting nozzle flow, pressure, and your travel speed, then verify with a test spray to ensure even coverage across the canopy.

Spray volume is about getting even, thorough coverage on the plant surfaces with the sprayer you’re using. For spraying trees and shrubs with a hand boom, about 200 gallons per acre is the typical target because it provides enough water to wet both the upper and inner parts of moderately dense canopies, including undersides of leaves where pests or diseases may hide.

If you apply too little, like 100 gallons per acre, you risk under-wetting and leaving some areas untreated, which can reduce control. If you use too much, such as 300–400 gallons per acre, you increase the chance of runoff, drift, plant stress, and unnecessary chemical costs.

In practice, you calibrate your equipment to hit that 200 gpa target by adjusting nozzle flow, pressure, and your travel speed, then verify with a test spray to ensure even coverage across the canopy.