PA Pesticide Applicator Exam Core Info Questions And Answers 2023.

PA Pesticide Applicator Exam Core Info Questions And Answers 2023. Bioaccumulation - Correct Answer-The accumulation of a substance, such as a toxic chemical, in various tissues of a living organism. Biomagnification - Correct Answer-Accumulation of pollutants at successive levels of the food chain abiotic factors - Correct Answer-natural control measures within the environment. EX: climactic factors, air/water pollution, topographic features. Biological Control - Correct Answer-The use of natural enemies to control pests. EX: Predators, Parasites, Pathogens Cultural Control - Correct Answer-These are Practices that reduce pest establishment, reproduction, dispersal and survival. EX: Mowing, irrigation, aeration, fertilization and sanitation. Genetic control - Correct Answer-Making use of plant varieties that are naturally resistant to insect feedings. Mechanical/Physical control - Correct Answer-Kills a pest directly or makes its environment unsuitable EX: Rodent traps, deer fences, mulches, barriers Regulatory control - Correct Answer-Removal of pests that cant be controlled at a local level. Utilizes quarantines to prevent entry of pests at airports or ocean ports and can be used to remove pests with government power. (i.e. draining standing water that provides breeding sites for mosquitos.) Mode of action - Correct Answer-How chemicals kill a pest Site of action - Correct Answer-The specific biological system affected within the pest Economic threshold - Correct Answer-The point at which the economic loss caused by pest damage outweighs the cost of applying a pesticide. (Treat pests when they pass the economic threshold) Economic injury level - Correct Answer-the pest population density that causes losses equal to the cost of control measures .