[ Return to Pesticide-Exposure Matix page ]

Scenario 14 - Outdoor Plant/tree 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 Outdoor
Plant/trees
(lbs/acre) (c)		 Outdoor
Plant/tree
Acres Treated
(thousands)
(calculated) (d)		 Probability
(calculated) (e)
Fertilizer/
Insecticide
Combination
Products (a)		 Straight
Insecticide
Products(a)		 Lawn Outdoor
Plants		 Nonplants
Carbaryl 0 650 33 520 98 3 173 24%
Malathion 0 400 20 320 60 2 160 22%
Diazinon 1,200 800 1,400 480 120 3 160 22%
Chlorpyrifos 140 110 190 44 17 2 22 3%
Other 230 590 319 413 89 2 207 29%
  1,570 2,550 1,961 1,777 383   722  
  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, based on 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 outdoor plants/trees divided by application rate for outdoor plants/trees.
  5. Outdoor plants/trees acres treated with each active ingredient divided by total outdoor plant/tree acres treated.