Crop Production & Protection Flashcards
7 cards from real GAP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Crop Production & Protection flashcards as text
What does the term 'action threshold' mean in IPM for GAP-certified growers?
Answer: The pest population level at which intervention is economically justified
An action threshold is the pest density at which control measures must be implemented to prevent economic loss.
Which type of irrigation method is generally considered to reduce the risk of foliar contamination on fresh produce under GAP?
Answer: Drip or subsurface irrigation
Drip or subsurface irrigation delivers water directly to the root zone, avoiding direct contact with edible plant parts.
Under GAP standards, when must pesticide applicators who apply federally restricted-use pesticides (RUPs) be certified?
Answer: Always — before applying any RUP
Federal law requires that restricted-use pesticides be purchased and applied only by certified applicators or persons under their direct supervision.
A GAP grower notices that a non-target weed species has developed resistance to a herbicide used repeatedly over five seasons. What is the best corrective action?
Answer: Rotate to a herbicide with a different mode of action
Rotating herbicides with different modes of action is the standard resistance management strategy to prevent and address herbicide-resistant weeds.
What is the correct disposal method for empty pesticide containers under EPA and GAP requirements?
Answer: Triple rinsing and then puncturing before disposal according to label instructions
EPA regulations require triple rinsing (or pressure rinsing) of pesticide containers and following label instructions for proper disposal.
Which biological control agent is commonly used under GAP to manage caterpillar pests on vegetable crops without synthetic insecticides?
Answer: Bacillus thuringiensis (Bt)
Bacillus thuringiensis (Bt) is a naturally occurring soil bacterium used as a biological insecticide effective against lepidopteran larvae.
Why is it important to calibrate spray equipment regularly under GAP pesticide application standards?
Answer: To ensure accurate application rates, preventing under- or over-application
Regular calibration ensures pesticides are applied at label-specified rates, protecting crop safety, efficacy, and compliance.