DPR - non soil fumigation Questions And Answers With Verified Solutions Graded A+

"Powderpost beetles" is used collectively to refer to these three groups of beetles - Lyctids, anobiids, and bostrichids A contact pesticide which has a localized pesticidal affect; not transported through the plant or animal tissues - Non-systemic A disease caused by a specific fungus, histoplasma capsulatum. Symptoms of this infection vary greatly, but the disease primarily affects the lungs and occasionally other organs - Histoplasmosis A duct used to exhaust the fumigant from the treatment area - Exhaust stack A glass tube that shows a color change in the presence of a specific gas such as methyl bromide. tubes are specific for different fumigants also called "colorimetric tubes" - Detector tubes A measurement of distance in a straight line between two adjacent manholes in a sewer system - Lineal feet A method of sealing an area for a fumigation that does not require a tarpaulin. Potential sites for leaks are sealed with polyethylene sheeting and tape. - Tape-and-seal A method of vacuum chamber fumigation where pressure inside the chamber is reduced, fumigant is introduced, and the lower pressure is maintained throughout the fumigation. - Sustained-vacuum fumigation A method of vacuum chamber fumigation where the pressure is lowered, fumigant introduced and then pressure is restored. This is called "below NAP " (normal atmospheric pressure). - Restored pressure fumigation A noticeable increase in breathing resistance when using a respirator is an indication that... - Respirator cartridges should be replacedA permit issued by the county agricultural commissioner to authorize certified applicators to purchase, possess, and use California restricted materials - Restricted materials permit A physical and chemical process by which one substance becomes attached to another. The term covers both absorption and adsorption - Sorption A process by which there is a net flow of matter from a region of high concentration to a region of low concentration resulting from random motion of molecules - Diffusion A reproductive structure produced by some plants and micro organisms that is resistant to environmental influences. - Spores A sewer designed to carry only residential or commercial waste, as opposed to a storm sewer. - Sanitary sewer A substance that vaporizes readily. That means it changes from a liquid, or even a solid into the gas phase - Volatile A type of decay developing under very wet conditions (as in cooling towers in boat timbers) in the outer wood layers. It is caused by cellulose destroying micro fungi that attacked the secondary cell walls but not the intercellular layer. - Soft rot A type of monitor that uses infrared light to detect and measure gas fumigant concentrations- also called "IR analyzer" - Ambient air analyzer A type of pesticide formulation consisting of an active ingredient that will not dissolve in water combined with a mineral clay or other inert ingredients and ground into a fine powder - Wettable powder A type of wood destroying fungi that remove cellulose leaving wood darkened and fractured - Brown rotAgency responsible for ensuring restricted material permits for the use of non-soil fumigate that is a restricted material - Local county agricultural commissioner All materials in the pesticide formulation other than the active ingredient. Some may be toxic or hazardous to people - Inert ingredients All the chemical processes that occur within a living organism in order to maintain life - Metabolism Am detector for monitoring the presence an approximate concentration of halide gases. Used to measure methyl bromide or sulfuryl fluoride - Halide leak detectors An adjuvant used to improve the ability of the pesticides to stick to and be absorbed by the target surface - Surfactant an advantage of chamber fumigation - Special preparation of a commodity is not necessary An area surrounding a treatment area during the treatment (exposure or holding period) where access is limited. The ____________________ extends from the perimeter of the treatment area to a distance determined by the product level. The _______________begins when the fumigant is introduced into the fumigation enclosure and ends when aeration begins. - Treatment for zone An example of an importation regulating agency that requires a quarantine fumigation to protect domestic agriculture and the environment from imported exotic pests is... - The United States Department of Agriculture- Animal and Plant Health Inspection Service An important practice in the control of stored commodity pests is... - Practicing good sanitation in and out of storage areas An instrument designed to measure the concentration of fumigant gases within a chamber or other enclosure during fumigation. Also called "TC analyzers". - Thermal conductivity analyzersAn organism microscopic size, such as a bacterium, virus, fungus, or algae. - Microorganism An undesirable discharge of sanitary or combined sewer flow into a river, scream, or other surface water. - Overflow Any pesticide that, for a reasonable length of time, is effective in preventing the development and activity of wood rotting fungi, bars of various kinds, and harmful insects that deteriorate wood. - Preservative Causing damage by chemical action such as when a substance oxidizes like rust on the metal surface or corrodes like an acid. some fumigants are especially ________ to certain metals - Corrosive