Washington Pesticide Laws and Safety Exam
Questions With Correct Answers
What is a severe pest? - answerA pest present in populations that are always above the
economic injury level in the absence of control.
What is an occasional or secondary pest? - answerA pest that can cause damage above
e...
Washington Pesticide Laws and Safety Exam Questions With Correct Answers What is a severe pest? - answer✔✔A pest present in populations that are always above the economic injury level in the absence of control. What is an occasional or secondary pest? - answer✔✔A pest that can cause damage above economic injury levels only at c ertain times. What is a potential pest? - answer✔✔A pest that typically causes no apparent economic damage under normal circumstances. What is a migratory pest? - answer✔✔A pest that may cause serious economic damage on a periodic basis. What are the five steps of developing an IPM program? - answer✔✔1. Identify the pest to be managed. 2. Define the management system. 3. Develop the pest management strategy. 4. Develop reliable monitoring techniques. 5. Use economic thresholds. What is an economic thresh old? - answer✔✔The level or density of a pest population where control measures need to be applied to prevent the pest from reaching the economic injury level. What is an economic injury level? - answer✔✔The pest population density that causes losses equal to the cost of the control measures. What are mechanical control methods? - answer✔✔Devices that prevent the spread or reduce the infestation of pests, primarily insects and vertebrate animals. Mechanical controls include hand destruction, traps, and mech anical exclusions such as screens, nets, and fences. What are physical control methods? - answer✔✔The manipulation of water, humidity, temperature, electric shock, or other radiant energy to kill, alter the pests life cycle, or create an unfavorable enviro nment for the pest to live in. What are cultural control methods? - answer✔✔The manipulation of the environment to avert serious pest damage. Cultural control methods require knowledge of the plants needs and potential problems. Ex: irrigation management, rotating crops, pruning, cover crops, etc. What are generic control methods? - answer✔✔The use of plants and animals that are resistant to attack by pests. Ex: Traditional breeding techniques combined with genetic manipulation of plants to promote host pla nt resistance to pests and disease. What are biological control methods? - answer✔✔Involve the introduction, encouragement, and/or artificial increase of plants and insects/animals that are parasites or predators of a pest species. What are chemical contro l methods? - answer✔✔Involve the use of naturally or synthetically derived chemicals that, kill, attract, repel, or otherwise manage the growth of a pest. Avicides - answer✔✔Management of birds. Bactericides - answer✔✔Management of bacteria. Fungicides - answer✔✔Management of fungi. Herbicides - answer✔✔Management of plants. Insecticides - answer✔✔Management of insects and insect relatives. Miticides - answer✔✔Management of mites. Molluscicides - answer✔✔Management of snails and slugs. Nematicides - answer✔✔Management of nematodes. Piscicides - answer✔✔Management of pest fish. Rodenticides - answer✔✔Management of rodent populations. Although not considered pesticides by definition, what three classes of chemicals are also regulated and classified as such? - answer✔✔1. Defoliants: Chemicals that cause leaves or foliage to drop from a plant. 2. Dessicants: Chemicals that promote drying or loss of moisture in plant tissues. 3: Growth Regulators: Substances (other than fertilizers or food) that alter the growth or development of a plant or animal. Adjuvants are regulated as pesticides in Washington state. What are adjuvants? - answer✔✔Substances added to the pesticides formula tions and tank mixtures to increase safety or effectiveness.
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