QAL CATEGORY M STUDY QUESTIONS 2024-25 WITH GUARANTEED ACCURATE ANSWERS
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Course
QAL CATEGORY M
Institution
QAL CATEGORY M
1.What is a fumigant -ACCURATE ANSWER
Gases liquid, solids
• Odorless and invisible
• Toxic when absorbed or inhaled
• Spread & penetrate spaces & materials
• Non-selective pesticide (kills all)
• Concentration, time, temp & humidity
• No residual or post application protection
...
QAL CATEGORY M STUDY QUESTIONS
2024-25
QAL CATEGORY M STUDY QUESTIONS 2024-25 WITH GUARANTEED ACCURATE
ANSWERS
1.What is a fumigant -ACCURATE ANSWER
Gases liquid, solids
• Odorless and invisible
• Toxic when absorbed or inhaled
• Spread & penetrate spaces & materials
• Non-selective pesticide (kills all)
• Concentration, time, temp & humidity
• No residual or post application protection
• Forms
• Cylinders
• CO2: Carbon Dioxide: treat stored commodities, containment
structures, and outdoor burrowing rodents
• SO2: sulfur dioxide: wine barrels, corks, certain commodities
, 2.Pros vs Cons -ACCURATE ANSWER
PROS
• Toxic to all pests
• Reach pest otherwise hard to locate, apply other pesticides
• Can kill pest on/near foods w/o residual
• Practical way to kill commodity pests
• CONS
• Very toxic
• No post application protection
• Expensive PPE
• Applicators must be skilled: labor cost high
• Applications require supervision to be effective
3. Fumigant distribution in a space -ACCURATE ANSWER
Molecular weight: measure of the weight of the atoms that
forma particular substance
• Specific gravity: ratio of the density of a substance to the
density of a standard
• Standard for gas = 1
• Greater then 1 = heavier than air, sinks
• Less then 1 = lighter than air, rises
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