Massachusetts Pesticide License Exam Questions + Answers Graded A+

absorption - Answer-the movement of a chemical into plants, animals (including humans), microorganisms or soil Acaricide - Answer-a pesticide used to control mites and ticks. a Miticide is a type of acaricide Acidic - Answer-having a ph less than 7 Acidifiers = Buffers - Answer-adjuvants used to retard chemical degradation of pesticides in the spray tank by lowering the pH of alkaline water used as a diluent Action Threshold - Answer-a predetermined level of pest infestation or damage at which some type of pest management action must be taken Activated Charcoal - Answer-A finely ground charcoal that adsorbs chemicals. Active Ingredient (AI) - Answer-The chemical or chemicals in a product responsible for pesticidal activity. Acute effect - Answer-a symptom, illness, or injury that occurs shortly after the exposure to a pesticide Acute Exposure - Answer-An exposure to a single dose of pesticide Acute Rodenticide - Answer-a pesticide that is capable of killing a rodent after a single feeding Acute Toxicity - Answer-The ability of a pesticide to cause illness after a single exposure. LD50 and LC50 are common indicators of the degree of acute toxicity Adjuvant (Additive) - Answer-a substance added to a pesticide to improve its effectiveness or safetyAdsorption - Answer-the process whereby chemicals are bound to a surface by physical or chemical attraction Adulterated Pesticide - Answer-A pesticide that does not conform to the specified standard or quality as documented on its label or labeling Aerosol - Answer-a liquid formulation that produces a mist or fod when applied from a container in which it is held under pressure or from a fod-generating machine Agitation - Answer-The process of stirring or mixing the contents of a spray tank Air-blast sprayer - Answer-A type of pesticide application equipment that uses a large volume of air moving at high speed to break up and disperse spray droplets from the nozzles Algae - Answer-relatively simple plants that are photosynthetic and contain chlorophyll Algaecide (algicide) - Answer-a pesticide used to kill or inhibit algae Alkaline - Answer-having a pH greater than 7, als Allergic Effects - Answer-a hypersensitivity to a specific substance which is not due to the substance's toxicity annual - Answer-a plant that completes its life cycle in one year antidote - Answer-a practical treatment used to counteract the effects of pesticide poisoning Antifouling Paint - Answer-a paint containing a pesticide (ex: Copper) that prevents aquatic organisms from attaching to underwater structures (such as boat hulls, crab pots and water intake pipes) Antisiphoning Device - Answer-a mechanism that prevents back flow of a pesticide mix from the spray tank into a water sourceapplication rate - Answer-the amount of pesticide applied to a known area (such as an acre or 1,000 square feet ) volume or animal Aquifer - Answer-a geological formation (ex: sand, gravel, bed rock), from which groundwater can be drawn Arachnid - Answer-a wingless arthropod with two body regions and four pairs of jointed legs (spiders, ticks, mites) Arthropod - Answer-An invertebrate animal characterized by jointed body and limbs usually a hard body covering that is molted at intervals. Insects, arachnids, millipedes and centipedes are arthropods Atropine (Atropine Sulfate) - Answer-An antidote used to treat organophosphate and carbamate poisoning. attractant - Answer-a substance or device to lure insects or other pests to a trap or poison bait avicide - Answer-a pesticide used to kill or repel birds Back-siphoning - Answer-the movement of a pesticide mixture from a spray tank through the filling hose into the water source