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Scenario 6 - Lawn Insects - Consumer, 1980
Method 2, Confidence medium
Active
Ingredient (a)		 Pounds applied to lawns,
outdoor plants, and nonplants
(thousands)		 Pounds applied to lawns,
outdoor plants, and nonplants
(thousands) (b)		 Application
Rate for Lawns
(lbs/acre) (c)		 Lawn Acres
Treated
(thousands)
(calculated) (d)		 Probability
for Lawns
(calculated) (e)
Fertilizer/
Insecticide
Combination
Products (a)		 Straight
Insecticide
Products (a)		 Lawn Outdoor
Plants		 Nonplants
  1. Kline (Anonymous, 1982)
  2. Allocation of active ingredient pounds separately to lawns, outdoor plants, and nonplants was done as follows:
    Fertilizer/insecticide combination products: 100% is applied to lawns (judgment)
    Straight insecticides: 15% of total is applied to lawns, 70% to outdoor plants, 15% to nonplants, from Kline (Anonymous, 1982)
    Straight insecticides: Split of each active ingredient to lawns vs. outdoor plants vs. nonplants is based on judgment (assumptions: diazinon: 25%-60%-15%, carbaryl and malathion: 5%-80%-15%, chlorpyrifos: 45%-40%-15%, other: 15%-70%-15%).
  3. Meister Publishing Company manuals
  4. Pounds applied to lawns divided by application rate for lawns.
  5. Lawn acres treated with each active ingredient divided by total lawn acres treated.
Diazinon 1,200 800 1,400 480 120 3 467 63%
Chlorpyrifos 140 110 190 44 17 2 95 13%
Carbaryl 0 650 33 520 98 3 11 1%
Malathion 0 400 20 320 60 2 10 1%
Other 230 590 319 413 89 2 159 21%
  1,570 2,550 1,961 1,777 383   742