Illinois Pesticide applicator exam with Correct Solutions 2024/2025

Illinois Pesticide applicator exam with Correct Solutions 2024 What is a pesticide - Answer -a substance used for destroying insects or other organisms harmful to cultivated plants or to animals. Pesticides are made up of - Answer -Active and inert ingredients AI - Answer -Active ingredient - chemical effective against pest Inert ingredients - Answer -don't harm pest but make the AI more effective Herbicide formulation - Answer -may be ready to use or may require dilution with carrier (oil or liquid) 60WDG - Answer -60% AI water-dispersible granule 4EC - Answer -4 lbs ai per gallon of emulsifiable concentrate SP - Answer -Soluable powder - dry formulation. Mixed with water. Dissolve readily and form true solution. WP, P - Answer -Wettable Powder - dry formulation. Finely ground powder. Forms suspension not true solution. Abrasive, requires agitation, inhalation risk DF, WDG - Answer -Dry flowables or water dispersible granules - dry formulation. Similar to WP except AI is in granule instead of powder form suspension. Less dust than WP G - Answer -Granules - dry formulation. AI coated with clay, newspaper Applied directly, no mixing Low hazzard to applicators P, PS - Answer -Pellets - dry formulation. Same as granules but larger D - Answer -Dusts - dry formulations. Low percentage of AI on very fine carrier (talk, chalk, clay) Most ready to use (no mixing)Inhilation hazard Drift hazzard (uncommon use) EC - Answer -Emulsifiable concentrate - wet formulation. AI mixed with 1+ solvents and emulsifier that allows mixing with water Easily absorbed through skin (dermal hazzard) ME - Answer -Microencapsulated - wet formulation AI is surrounded by plastic coating suspended in liquid Time- release product Bees catty it back to hive and can poison colony S - Answer -Solutions - wet formulation Form true solution when mixed Will not settle or separate ULV - Answer -Ultra-low volume concentration - wet formulation Have high % ai with a solvent (usually oil) Low application rate per acre Fumigants - Answer -Produce gas, vapor, fumes, etc. Special licencing required Highly toxic Restricted use pesticides - Answer -Only purchased by certified applicators or persons under their supervision Records of applications must be maintained for 2 years Adjuvant - Answer -Chemical modifies physical properties, enhances performance or both of pesticides Includes spray modifiers Activatior adjuvants - Answer -Water spreader (surfactants), Sticker (oils, laytex), humectant,penetrator utility adjuvants - Answer -defoamer, water conditioner (acids) Drift reduction additives - Answer -thickening agents increase droplet sizeDroplets must be over 200 microns Sticker - Answer -increase adherence of chemical to surface Surfactant, Spreaders - Answer -Spread spray mix more thoroughly Decreases surface tension of water Penetrants - Answer -helps pass through outer surface of plants - through waxy coating on leaves (cuticle) Defoaming agents - Answer -eliminate foam from spray tanks (especially during agitation) Mixing of pesticides - Answer -ensure that pesticides retain properties when you mix Do not change toxicity or physical properties when combined Illegal to mix pesticides with products prohibited on label Chemical incompatibility - Answer -antagonism: decrease effectiveness