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Law Regulations Study Guide
1. Which Component of an ecosystem exerts the most control over the introduction and loss of nutrients?
2. Which of the following is a drawback to using lethal-dose response curves to measure the toxic effects of a pesticide?
a. They are not applicable for volatie or gaseous pesticide
b. They do-not take long term effects of pesticides into account
c. They cannot measure effects of soil-incorporated pesticides
3. Insecticides that mimic or interrupt the functioning of natural insect hormones are called?
c. Growth regulators
4. Repeating treatments several times in an experiment to allow for the measurement of variability across experimental unit is called?
5. What type of soil-dwelling pests are most effectively controlled with crop rotations?
6. Why is it important to consider the mode of action of a recommended pesticide?
a. It is the key factor in the development of pesticide resistance
b. It affects the hazards to people during mixing and loading.
c. It impacts the phytotoxicity hazards for adjacent crops.
7. If a PCA recommends the use of a pesticide on a crop for which it is phytotoxic, who is responsible for crop losses incurred when the pesticides are used?
a. The pesticide manufacture
b. The PCA
c. The applicator
8. Why are agroecosystems typically dominated by r-strategies pests?
a. Management actions repeatedly disturb these areas
b. Management actions regularity create biodiversity
c. Manage actions continually increase competition
9. Knockdown techniques such as beat trays are useful for monitoring?
a. Fungal spores
b. Foliar nematodes
c. Beneficial beetles
10. Trophic levels in an ecosystem include?
a. Tertiary consumers
b. Organic matter
c. Nutrient sources
11. The presence of which variable can cause a crop plant to become diseased?
b. Soil solarization
12. Which intergraded pest management practices are often used together to achieve effective and long- lasting control?
a. Chemical and biological control
b. Chemical and physical control
c. Chemical and cultural control
13. To protect the public from harmful residues on harvested produce, federal law has established pesticide residue
14. What is bioaccumulation?
a. The rate of which plants are able to acquire energy and nutrients
b. The build-up of persistent pesticides through the food chain.
c. The way in which plants concentrate toxins in their meristems
15. Field trials can help establish new
a. Monitoring guidelines
b. Expert systems
c. Control methods
16. How does presence – absence sampling improve sampling efficiency?
a. Sample units are controlled and analyzed later, with no need to count each individual at the site.
b. Sample unit infestation levels are recorded by those present, with no need for review later.
c. Sample units are recorded as either infested or un-infested with no need to count each individua