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What Are Pesticides? Funding provided from the MN Future Resources Fund as recommended by the Legislative Commission on Minnesota Resources. Minnesota Department of Agriculture IPM in Schools Program Contact: Jean Ciborowski, 651-297-3217. Definition of a Pesticide.
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What Are Pesticides?Funding provided from the MN Future Resources Fund as recommended by the Legislative Commission on Minnesota Resources Minnesota Department of Agriculture IPM in Schools Program Contact: Jean Ciborowski, 651-297-3217
Definition of a Pesticide • Any chemical used to repel or kill a pest organism
Algacides/slimicides Herbicides Fungicides Insecticide Rodenticides Miticides Acaricide Avicides Molluscicides Nematicides Sanitizers/ disinfectants Examples of Pesticides
Pesticide name Brand, trade or product, common, chemical Type of pesticide Fungicide, herbicide, insecticide Formulation Granular, liquid Classification: Restricted use Could cause harm to humans, including pesticide handlers, or to environment. In Minnesota, must be certified applicator to apply RUP Ingredients Statement Active ingredient = chemical in product that kills or controls target pest Information in a Pesticide Label
Directions for Use • Crops, livestock or sites to be treated • Pests to be controlled • Methods of application • Amount, how to mix and apply • Other including: geography, time, wildlife, incompatibilities
Warnings and Precautions • Signal Words • Protective clothing and equipment • Safe handling • First aid instructions • Storage and disposal • Environmental hazards • Re-entry intervals • Storage and disposal
Important Numbers • EPA Registration Number • Label approved by federal government • Establishment Number —specific manufacturing plant where pesticide produced
Label is • Target pests, crops, site • Protective clothing or equipment to be used • Application rates and methods • Re-entry intervals • Etc
Chemical Identification Ingredient Information Physical data Hazards identification First Aid measures Reactivity Data Fire and Explosion Data Accidental Release Measures Protective Equipment Toxicology information Ecological Information Disposal considerations Transport information Regulatory information Special Precautions MSDS Material Safety Data Sheet
Signal Words for Toxicity Categories • IV-Caution- Relatively nontoxic- Mild Irritation • III-Caution- Slightly Toxic- Moderate Irritation • II-Warning- Moderately Toxic- Irritation • I-Danger or Danger /Poison -(skull and crossbones symbol) - Highly Toxic -Very poisonous and irritating
Precautionary Statements: Signal Words • Danger (or Poison) • Warning • Caution
Caution • Notice the word CAUTION is used for both category III and IV. • Since category III chemicals are included in this law and category IV are not, it is essential that you know which is which. • The CFL web site is your best source of information on the categories. • http://cfls.state.mn.us/pesticide
Pesticide Toxicity: Routes of Exposure • Eye • Dermal – skin • Oral - by mouth, ingestion • Inhalation - breathe in
PPE = Personal Protective Equipment Follow label instructions
To Reduce Exposure, Do Not: • Have contact with pesticides in closed or poorly ventilated areas or breathe vapors, dust or mist without PPE Be especially aware of fumigant vapors • Inhale vapors from drift or reenter area too soon • Splash or spray pesticides in eyes or mouth • Rub eyes or forehead with contaminated gloves or hands • Mistake pesticide for food or drink • Apply pesticides in windy weather • Touch pesticide treated surfaces
To Reduce Exposure, Do: • Use PPE as indicated on label when preparing or applying pesticides • Wash contaminated clothing--check pesticide label directions • Avoid accidentally applying pesticides to food • Wash hands after handling pesticides or containers
To Reduce Pesticide Exposure to Others, when possible • Consider alternatives to pesticides • Use baits, traps and pest strips • Spot treat or use crack and crevice treatments • Make applications at times when staff and students are less likely to contact pesticides • Promote good sanitation and hand washing
HEALTH RISK =EXPOSURE X TOXICITY Reduce risk by reducing either or both of those factors • Exposure -- find non chemical pest controls, improve pesticide handling procedures and safety practices • Toxicity – select products with lower toxicity
Measuring Toxicity • Toxicity rating LD50 (inhalation LC50) • Lethal dose that killed 50 percent of test population (animals exposed to pesticide) • LD50 expressed in milligrams product per kilogram weight of animal • Lower number, the higher the toxicity