OR Pesticide Applicator cheat sheet

FIFRA gives EPA authority to register pesticides; a pesticide may not be sold or distributed in the U.S. unless it is registered or exempt from registration.

A restricted-use pesticide (RUP) may be applied only by a certified applicator or by a person under the direct supervision of a certified applicator.

Oregon requires a pesticide applicator license for commercial application and for applying RUPs; the Oregon Department of Agriculture administers licensing and enforcement.

The label is the legally binding document: use inconsistent with label directions (site, rate, timing, PPE, buffer) is a violation of federal and state law.

Worker Protection Standard requires pesticide safety training before 5 days of work in treated areas, plus central posting of application information.

Recordkeeping: certified applicators must keep RUP application records for 2 years under FIFRA; Oregon may require records for additional pesticide uses.

Special local needs (Section 24(c)) registrations are state-issued and apply only within that state; they do not authorize use in other states.

Emergency exemptions (Section 18) are time-limited and site-specific; applying outside the stated exemption period or site is a violation.

Oregon requires pesticide dealers and applicators to report certain pesticide sales and use, and ODA may inspect records and application equipment.

Signal words reflect acute toxicity: DANGER (Category I, plus skull and crossbones if orally lethal), WARNING (Category II), CAUTION (Category III/IV).

LD50 is the dose killing 50% of test animals, expressed as mg/kg body weight; lower LD50 means higher toxicity.

Cholinesterase inhibition from organophosphates and carbamates causes SLUDGE symptoms: salivation, lacrimation, urination, defecation, GI distress, emesis.

Atropine is the antidote for organophosphate/carbamate poisoning; pralidoxime (2-PAM) is used for organophosphate poisoning, not carbamate.

PPE categories on the label specify minimum body, hand, eye, and respiratory protection; chemical-resistant gloves must be labeled for that use.

Respiratory protection requires a fit test, medical evaluation, and cartridge change schedule; a dust/mist filter does not protect against vapors.

Pesticide poisoning signs include headache, dizziness, nausea, sweating, blurred vision, and pinpoint pupils; remove the victim from exposure and call poison control (1-800-222-1222).

Sensitive individuals and children face higher risk; reentry intervals (REI) protect workers from residues before they are safe to enter.

Economic threshold is the pest density at which control action prevents economic loss; economic injury level is the density causing loss equal to control cost.

Integrated pest management (IPM) combines cultural, mechanical, biological, and chemical tactics, using pesticides only when monitoring shows thresholds are exceeded.

Weeds are identified by leaf shape, arrangement, ligule, auricle, and growth habit; grasses have hollow round stems and sheath leaves, sedges are triangular.

Insect metamorphosis: incomplete (egg-nymph-adult) vs complete (egg-larva-pupa-adult); most soil and foliar insecticides target larval stages.

Fungi cause damping-off, rusts, mildews, and blights; bacterial diseases often show water-soaked lesions and ooze, and viruses cause mosaic and stunting.

Resistance management requires rotating mode-of-action groups (IRAC, FRAC, HRAC classifications) and avoiding repeated use of one group.

Biological control uses predators, parasitoids, and pathogens; broad-spectrum insecticides can disrupt natural enemies and cause pest resurgence.

Scouting and monitoring use sweep nets, beat sheets, pheromone traps, and visual counts to track pest populations and beneficial insects.

The label rate is expressed as amount of product per acre or per 1,000 sq ft; calibrate to deliver the correct carrier volume and product rate.

Calibration formula for broadcast sprayers: GPA = (GPM × 5940) / (MPH × nozzle spacing in inches).

Nozzle selection depends on droplet size; coarse droplets reduce drift, fine droplets improve coverage but increase drift risk.

Triple-rinse containers: empty, rinse with water, add rinse water to spray tank, and puncture or recycle containers per label.

Spray drift is reduced by low pressure, larger nozzles, lower boom height, drift-reduction adjuvants, and applying when wind is under label limits.

Mixing order generally: fill tank half full, add adjuvants, then wettable powders, flowables, and emulsifiable concentrates, then top off.

Store pesticides in original labeled containers, locked away from food and children, and never store in unlabeled or food containers.

Sprayer maintenance includes checking nozzles for wear, cleaning filters, and flushing the system after use to prevent cross-contamination.

FIFRA regulates pesticide registration, distribution, sale, and use in the United States; EPA registers pesticides while states may impose stricter requirements.

A restricted-use pesticide (RUP) may be applied only by a certified applicator or a person under the direct supervision of a certified applicator.

Oregon requires a pesticide applicator license for commercial application and for applying RUPs; the Oregon Department of Agriculture administers licensing and enforcement.

The label is the law: applying a pesticide in a manner inconsistent with its labeling violates federal and state law and can result in penalties.

The Worker Protection Standard requires pesticide safety training before 5 days of work in treated areas and central posting of application information.

Certified applicators must keep records of RUP applications for at least 2 years; Oregon may require additional records for other pesticide uses.

Section 24(c) special local needs registrations are state-specific and do not authorize use outside the issuing state.

Section 18 emergency exemptions are time-limited and site-specific; use outside the exemption period or site is a violation.

Oregon requires pesticide dealers and applicators to report certain sales and use, and ODA may inspect records and application equipment.

Signal words reflect acute toxicity: DANGER (Category I, plus skull and crossbones if orally lethal), WARNING (Category II), CAUTION (Category III/IV).

LD50 is the dose that kills 50% of test animals, expressed as mg/kg body weight; a lower LD50 indicates higher toxicity.

Cholinesterase inhibition from organophosphates and carbamates causes SLUDGE symptoms: salivation, lacrimation, urination, defecation, GI distress, and emesis.

Atropine is the antidote for organophosphate and carbamate poisoning; pralidoxime (2-PAM) is used for organophosphate poisoning but not carbamate poisoning.

PPE categories on the label specify minimum body, hand, eye, and respiratory protection; chemical-resistant gloves must be labeled for that use.

Respiratory protection requires a fit test, medical evaluation, and cartridge change schedule; a dust/mist filter does not protect against vapors.

Pesticide poisoning signs include headache, dizziness, nausea, sweating, blurred vision, and pinpoint pupils; remove the victim from exposure and call poison control at 1-800-222-1222.

Sensitive individuals and children face higher risk; reentry intervals (REI) protect workers from residues before the area is safe to enter.

Economic threshold is the pest density at which control action prevents economic loss; economic injury level is the density at which loss equals control cost.

Integrated pest management (IPM) combines cultural, mechanical, biological, and chemical tactics, using pesticides only when monitoring shows thresholds are exceeded.

Weeds are identified by leaf shape, arrangement, ligule, auricle, and growth habit; grasses have hollow round stems and sheath leaves, while sedges are triangular.

Insect metamorphosis is incomplete (egg-nymph-adult) or complete (egg-larva-pupa-adult); most soil and foliar insecticides target larval stages.

Fungi cause damping-off, rusts, mildews, and blights; bacterial diseases often show water-soaked lesions and ooze; viruses cause mosaic and stunting.

Resistance management requires rotating mode-of-action groups (IRAC, FRAC, HRAC classifications) and avoiding repeated use of a single group.

Biological control uses predators, parasitoids, and pathogens; broad-spectrum insecticides can disrupt natural enemies and cause pest resurgence.

Scouting and monitoring use sweep nets, beat sheets, pheromone traps, and visual counts to track pest populations and beneficial insects.

The label rate is expressed as amount of product per acre or per 1,000 sq ft; calibrate to deliver the correct carrier volume and product rate.

Calibration formula for broadcast sprayers: GPA = (GPM × 5940) / (MPH × nozzle spacing in inches).

Nozzle selection depends on droplet size; coarse droplets reduce drift, while fine droplets improve coverage but increase drift risk.

Triple-rinse containers: empty the container, rinse with water, add rinse water to the spray tank, and puncture or recycle containers per label.

Spray drift is reduced by low pressure, larger nozzles, lower boom height, drift-reduction adjuvants, and applying when wind is under label limits.

Mixing order generally: fill the tank half full, add adjuvants, then wettable powders, flowables, and emulsifiable concentrates, then top off.

Store pesticides in original labeled containers, locked away from food and children, and never store them in unlabeled or food containers.

Sprayer maintenance includes checking nozzles for wear, cleaning filters, and flushing the system after use to prevent cross-contamination.

FIFRA governs pesticide registration, distribution, sale, and use; EPA registers pesticides and states may impose stricter requirements.

A restricted-use pesticide (RUP) may be applied only by a certified applicator or a person under the direct supervision of a certified applicator.

Oregon requires a pesticide applicator license for commercial application and for applying RUPs; the Oregon Department of Agriculture administers licensing and enforcement.

The label is legally binding: use inconsistent with label directions (site, rate, timing, PPE, buffer zones) is a violation of federal and state law.

The Worker Protection Standard requires pesticide safety training before 5 days of work in treated areas and central posting of application information.

Certified applicators must keep RUP application records for at least 2 years; Oregon may require records for additional pesticide uses.

Section 24(c) special local needs registrations are state-issued and valid only within that state.

Section 18 emergency exemptions are time-limited and site-specific; use outside the exemption period or site is a violation.

Oregon requires pesticide dealers and applicators to report certain sales and use, and ODA may inspect records and application equipment.

Signal words reflect acute toxicity: DANGER (Category I, plus skull and crossbones if orally lethal), WARNING (Category II), and CAUTION (Category III/IV).

LD50 is the dose that kills 50% of test animals, expressed as mg/kg body weight; a lower LD50 indicates higher toxicity.

Cholinesterase inhibition from organophosphates and carbamates causes SLUDGE symptoms: salivation, lacrimation, urination, defecation, GI distress, and emesis.

Atropine is the antidote for organophosphate and carbamate poisoning; pralidoxime (2-PAM) treats organophosphate poisoning but is not used for carbamates.

PPE categories on the label specify minimum body, hand, eye, and respiratory protection; chemical-resistant gloves must be labeled for that use.

Respiratory protection requires a fit test, medical evaluation, and cartridge change schedule; a dust/mist filter does not protect against vapors.

Pesticide poisoning signs include headache, dizziness, nausea, sweating, blurred vision, and pinpoint pupils; remove the victim from exposure and call poison control at 1-800-222-1222.

Sensitive individuals and children face higher risk; reentry intervals (REI) protect workers from residues before the area is safe to enter.

Economic threshold is the pest density at which control action prevents economic loss; economic injury level is the density at which loss equals control cost.

Integrated pest management (IPM) combines cultural, mechanical, biological, and chemical tactics, using pesticides only when monitoring shows thresholds are exceeded.

Weeds are identified by leaf shape, arrangement, ligule, auricle, and growth habit; grasses have hollow round stems and sheath leaves, while sedges are triangular.

Insect metamorphosis is incomplete (egg-nymph-adult) or complete (egg-larva-pupa-adult); most soil and foliar insecticides target larval stages.

Fungi cause damping-off, rusts, mildews, and blights; bacterial diseases often show water-soaked lesions and ooze; viruses cause mosaic and stunting.

Resistance management requires rotating mode-of-action groups (IRAC, FRAC, HRAC classifications) and avoiding repeated use of a single group.

Biological control uses predators, parasitoids, and pathogens; broad-spectrum insecticides can disrupt natural enemies and cause pest resurgence.

Scouting and monitoring use sweep nets, beat sheets, pheromone traps, and visual counts to track pest populations and beneficial insects.

The label rate is expressed as amount of product per acre or per 1,000 sq ft; calibrate to deliver the correct carrier volume and product rate.

Calibration formula for broadcast sprayers: GPA = (GPM × 5940) / (MPH × nozzle spacing in inches).

Nozzle selection depends on droplet size; coarse droplets reduce drift, while fine droplets improve coverage but increase drift risk.

Triple-rinse containers: empty the container, rinse with water, add rinse water to the spray tank, and puncture or recycle containers per label.

Spray drift is reduced by low pressure, larger nozzles, lower boom height, drift-reduction adjuvants, and applying when wind is under label limits.

Mixing order generally: fill the tank half full, add adjuvants, then wettable powders, flowables, and emulsifiable concentrates, then top off.

Store pesticides in original labeled containers, locked away from food and children, and never store them in unlabeled or food containers.

Sprayer maintenance includes checking nozzles for wear, cleaning filters, and flushing the system after use to prevent cross-contamination.

FIFRA governs pesticide registration, distribution, sale, and use; EPA registers pesticides and states may impose stricter requirements.

A restricted-use pesticide (RUP) may be applied only by a certified applicator or a person under the direct supervision of a certified applicator.

Oregon requires a pesticide applicator license for commercial application and for applying RUPs; the Oregon Department of Agriculture administers licensing and enforcement.

The label is legally binding: use inconsistent with label directions (site, rate, timing, PPE, buffer zones) is a violation of federal and state law.

The Worker Protection Standard requires pesticide safety training before 5 days of work in treated areas and central posting of application information.

Certified applicators must keep RUP application records for at least 2 years; Oregon may require records for additional pesticide uses.

Section 24(c) special local needs registrations are state-issued and valid only within that state.

Section 18 emergency exemptions are time-limited and site-specific; use outside the exemption period or site is a violation.

Oregon requires pesticide dealers and applicators to report certain sales and use, and ODA may inspect records and application equipment.

Signal words reflect acute toxicity: DANGER (Category I, plus skull and crossbones if orally lethal), WARNING (Category II), and CAUTION (Category III/IV).

LD50 is the dose that kills 50% of test animals, expressed as mg/kg body weight; a lower LD50 indicates higher toxicity.

Cholinesterase inhibition from organophosphates and carbamates causes SLUDGE symptoms: salivation, lacrimation, urination, defecation, GI distress, and emesis.

Atropine is the antidote for organophosphate and carbamate poisoning; pralidoxime (2-PAM) treats organophosphate poisoning but is not used for carbamates.

PPE categories on the label specify minimum body, hand, eye, and respiratory protection; chemical-resistant gloves must be labeled for that use.

Respiratory protection requires a fit test, medical evaluation, and cartridge change schedule; a dust/mist filter does not protect against vapors.

Pesticide poisoning signs include headache, dizziness, nausea, sweating, blurred vision, and pinpoint pupils; remove the victim from exposure and call poison control at 1-800-222-1222.

Sensitive individuals and children face higher risk; reentry intervals (REI) protect workers from residues before the area is safe to enter.

Economic threshold is the pest density at which control action prevents economic loss; economic injury level is the density at which loss equals control cost.

Integrated pest management (IPM) combines cultural, mechanical, biological, and chemical tactics, using pesticides only when monitoring shows thresholds are exceeded.

Weeds are identified by leaf shape, arrangement, ligule, auricle, and growth habit; grasses have hollow round stems and sheath leaves, while sedges are triangular.

Insect metamorphosis is incomplete (egg-nymph-adult) or complete (egg-larva-pupa-adult); most soil and foliar insecticides target larval stages.

Fungi cause damping-off, rusts, mildews, and blights; bacterial diseases often show water-soaked lesions and ooze; viruses cause mosaic and stunting.

Resistance management requires rotating mode-of-action groups (IRAC, FRAC, HRAC classifications) and avoiding repeated use of a single group.

Biological control uses predators, parasitoids, and pathogens; broad-spectrum insecticides can disrupt natural enemies and cause pest resurgence.

Scouting and monitoring use sweep nets, beat sheets, pheromone traps, and visual counts to track pest populations and beneficial insects.

The label rate is expressed as amount of product per acre or per 1,000 sq ft; calibrate to deliver the correct carrier volume and product rate.

Calibration formula for broadcast sprayers: GPA = (GPM × 5940) / (MPH × nozzle spacing in inches).

Nozzle selection depends on droplet size; coarse droplets reduce drift, while fine droplets improve coverage but increase drift risk.

Triple-rinse containers: empty the container, rinse with water, add rinse water to the spray tank, and puncture or recycle containers per label.

Spray drift is reduced by low pressure, larger nozzles, lower boom height, drift-reduction adjuvants, and applying when wind is under label limits.

Mixing order generally: fill the tank half full, add adjuvants, then wettable powders, flowables, and emulsifiable concentrates, then top off.

Store pesticides in original labeled containers, locked away from food and children, and never store them in unlabeled or food containers.

Sprayer maintenance includes checking nozzles for wear, cleaning filters, and flushing the system after use to prevent cross-contamination.