This category is for applicators using or supervising the use of restricted use pesticides to treat stored grain, e.g., grain fumigation.
Q. Of insects, pathogens and rodents, what is the major cause of stored grain deterioration?
Q. How is temperature a critical factor in insect development?
Q. How might knowing the biology of Indian meal moths help in identifying their presence?
Q. When introducing traps or bait stations into an area for Norway rats, why might you not see immediate acceptance of these foreign objects?
Q. Why are palatable baits recommended to achieve effective control with the house mouse?
Q. What storage methods lead to properly stored grain?
Q. Why is it important to repair all cracks or holes in grain bins and what is the most permanent way to do so?
Q. Why is it important to never store new grain with old grain?
Q. How often should grain be inspected or monitored for effective management of grain in long-term storage?
Q. What three basic rodent environmental needs should be manipulated during sanitation as a method of rodent control?
Q. Explain the process by which grain fumigants ensure healthy crops.
Q. What are the advantages and disadvantages of fumigant use in grain pest control?
Q. What steps should an applicator take to ensure an adequate concentration of fumigants to eradicate pests in storage target areas?
Q. What is the suitable grain temperature for fumigation?
Q. Which factors are important in rail car fumigation?
Q. What is meant by phytotoxicity? How is it caused?
Q. What are the most common causes of delayed toxicity?
Q. What are sources of oral exposure?
Q. What is the minimum requirement of protective clothing?
Q. What kind of gloves should be worn when handling concentrates?
Q. What types of hats and boots should be avoided when applying pesticides?
Q. What are three kinds of non-point source pesticide pollution?
Q. What is the difference between threatened species and endangered species?
Q. What type of pesticide containers are accepted for recycling?
Q. What are the two kinds of drift?
Q. What are the four equipment requirements of a chemigation system?