Microbial Pest Control Study Guide(DPR) Updated 2024/2025 Actual Questions and answers with complete solutions

A cylinder of liquid sulfur dioxide should never be used for sanitizing wine barrels because - These cylinders are not label for this use A pesticide with an LD50 of 5 indicates it - Is highly toxic A pesticide's LD50 is - The dose that kills half of the test animal population A precaution when working with fumigants such as sulfur dioxide is to - Avoid wearing contact lenses while handling A slime consists of - A combination of fungi, bacteria, and algae A spill cleanup kit for liquids should always include - A supply of absorbent material About what percentage of pesticides related illnesses and injuries reported annually in California involve antimicrobial pesticides? - 33% After placing material cleaned up from a pesticide spill into a sealable drum, label it with the following: - "Contents: Hazardous Waste" plus the pesticide name, signal word, and name and address of responsible party After treating a mainline that was contaminated with trench water during construction or repair, how much time must pass after flushing before you take samples for biological testing? - 16 hours Algae are - Primitive plants An acute effect of a pesticide is one that is observed - Shortly after exposureAn example of an exclusion technique for controlling microorganism is - Air filtration An important reason to read a pesticide label after completing the pesticide application is to - Review disposal information and requirements An important skill you need to develop when applying antimicrobial pesticides is knowing how to - Keep pesticides from drifting or moving out of the area during application As soon as practical, after contacting emergency response agencies, report all spills of pesticides, no matter where they occur, to the - Local county agricultural commissioner's office Bacteria - Can be spread by anything that contacts them Combinations of fungi, bacteria,algae, and other organisms create - Slimes Combining non chemical control methods with pesticides - Usually provides more effective control Corrosion of the metal components of an open recirculating water cooling system are the result of water contact with air and - Bacteria During construction of a water main system, one way to reduce contamination of the pipes is to - Avoid storing pipes at the construction site for long periods Environmental conditions that are ideal for fungal infection include - Warm temperatures and moisture For information and techniques to use for sanitizing potable water pipes, consult the - American Water Works Association and state and local guidelines