NH Pesticide - ROW - B Exam 2024/2025 with 100% correct answers
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Course
NH Pesticide - ROW - B
Institution
NH Pesticide - ROW - B
Ways you may be exposed to pesticide correct answers-Dermal -Eye -Respiratory
When is a formal respiratory program needed correct answers-When respirators are used -Must include all requirements outlined in OSHA respiratory protection standard
Problems caused by lateral movement of soil-activ...
Ways you may be exposed to pesticide correct answers-Dermal -Eye -Respiratory
When is a formal respiratory program needed correct answers-When respirators are used -Must include
all requirements outlined in OSHA respiratory protection standard
Problems caused by lateral movement of soil-active herbicides correct answers-Particularly bare-ground
treatment -Lateral movement may cause excessive destruction of vegetation and result in soil erosion or
cause injury to desirable vegetation -On sloped areas = erosion -Injury to adjacent areas
Precautions to consider when treating aquatic sites correct answers-Use herbicides labeled for that
purpose -Avoid drift -Keep spray out of water -Keep buffer adjacent to aquatic site -Be alert to lateral
movement or runoff -Need special permit
List concerns of livestock owners when ROW crosses pasture land correct answers-Herbicide residue will
poison livestock -Active ingredient could appear in meat or milk making commodities unsellable -
Overspray and drift -Make sure pesticide is labeled for use in pasture -Do no apply if labeled for non-crop
areas -Be aware of re-entry times -Wild cherry becomes poisonous after spraying, needs to be fully
removed
Recognize proper methods of preventing back-siphoning of pesticide into water correct answers-Use
separate pump with check valves -Don't let filler hose dip into tank -Use back flow devices -Don't use
water source used for domestic purposes or watering livestock
Recognize features of sprayer filling station selected to minimize spills and contamination correct
answers-Designed to minimize problems -Not located on pond or stream -Area slopped away from
surface water -Triple rinse containers
Identify who is responsible for cleaning up pesticide spill correct answersThe applicator
,Methods for cleaning a spill and decontaminating spill area correct answers-PPE -Contain spill -Isolate
area -Call appropriate emergency response -If pest. in soil, remove upper layer -Can use activated
charcoal
Chapter 3 correct answersChapter 3
Overspray correct answersWhen pesticide is applied directly outside of target area
Problems that arise because of drift correct answers-Damage to non-target plants -Contaminate surface
waters -Harm wild or domestic animals or people -Legal matters -Reputation -Costs
Particle Drift correct answers-At time of application, small particles move from target area
Vapor Drift correct answers-Spray turns to gas and fumes and move from target area
Most important factor affecting particle drift correct answers-Spray droplet size
Discuss effects of air stability and temp inversions on particle drift correct answers-Don't affect drift
directly but provide conditions where it is more likely to occur -Air stability is warmed at the plant
surface and rises causing currents to move droplets upward. Wind then moves them off site. -Layer of
warm air is sandwiched between layers of cold caused by rapid cooling of plant surface. Lost heat
radiates upward causing air to be warmer above surface. Inversion indicated by fog or smoke at ground
level
Clues that suggest temperature inversion correct answers-Ground fog or smoke that move laterally in
concentrated cloud instead of moving upward and dissapating. -Common on clear, calm nights, and last
into the morning
Factors that increase particle drift also increase vapor drift correct answers-Particle size, temp, wind
, Effects of pesticide, temperature and soil moisture on vapor drift correct answers-Volatility increase w
temperature increase -Wet soil increases rate of volatization and decreases effectiveness of
incorporation
State first rule of drift management correct answers-Know when not to spray
Discuss site conditions before deciding to spray correct answers-Weather -Sensitive areas -Sprayer
setup:drop size, nozzle type, distance to target -Assess risks:Likelihood of drift, pesticide factors,
consequence of drift
3 ways to widen window of application for spraying correct answers-Pest detection: scout and map, help
with being patient with application -Flexible IVM plant can give wider range of choices -Buffer zones:
areas between target and sensitive areas
2 main considerations for reducing drift correct answers-Use lowest nozzle distance that provides
uniform coverage -Apply coarsest droplet size spectrum that provides sufficient coverage
Factors that effect proportion of small droplets in pesticide spraying correct answers-Spray pressure:
higher means small droplet size, lower means bigger droplet -Nozzles: larger openings or narrower spray
angle produce fewer fine droplets -Spray rate;higher rate lets you use larger opening nozzle -Drift control
agents
3 advantages of boom sprayer over mist blowers with respect to spray drift correct answers-Produce
larger spray droplets -Release closer to target -Direct them downward rather than laterally
Describe how air-assisted and covered booms help reduce drift and improve deposition correct answers-
It covers the sprayers as they are spraying so no drift can move outward.
Use procedure provided to select nozzles that provide adequate deposition w least risk of drift correct
answers-Spectrum allows you to use the coarsest spray possble that provides adequate coverage and
efficacy
Chapter 4 correct answersChapter 4
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