Wyoming Pesticide Applicator Certification Practice Test

What defines the Economic Threshold in pest management?

1. The level of income required to purchase pesticides

2. The point where pest populations exceed a manageable level

3. The minimum number of pests needed for effective control

4. The point where action must be taken to prevent pest populations from reaching the Economic Injury Level

The correct answer is: The point where action must be taken to prevent pest populations from reaching the Economic Injury Level

The Economic Threshold in pest management refers to the point where action must be taken to prevent pest populations from reaching the Economic Injury Level. This is the level at which pests cause enough damage to crops that the cost of controlling them becomes economically justified. Option A is incorrect because the Economic Threshold is not based on income. Option B is incorrect because it only describes when pest populations become a problem, not the specific threshold. Option C is incorrect because it is the Economic Injury Level, which is the amount of pests at which control measures are necessary to prevent significant yield losses. Therefore, the correct answer is D.