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Scenario 15 - Outdoor Plant/tree insects - Consumer, 1990
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
Plants/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
Malathion 0 1,495 150 897 449 2 448 29%
Carbaryl 0 1,869 187 1,121 561 3 374 24%
Diazinon 670 2,243 1,231 1,009 673 3 336 22%
Chlorpyrifos 1,341 1,121 1,677 448 336 2 224 15%
Other 168 748 392 299 224 2 150 10%
  2,179 7,476 3,637 3,774 2,243   1,532  
  1. Kline (Hodge and Rafter, 1992a)
  2. Allocation of active ingredient pounds separately to lawns, outdoor plants, and nonplants was done as follows:
    Fertilizer/insecticide combinations: 100% is applied to lawns (judgment)
    Straight insecticides: 20% of total is applied to lawns, 50% to outdoor nonplants, 30% to nonplants, based on Kline (Hodge and Rafter, 1992a) plus judgment.
    Straight insecticides: Split of each active ingredient to lawns vs. outdoor plants vs. nonplants is based on judgment (assumptions: diazinon: 25%-45%-30%, carbaryl and malathion: 10%-60%-30%, chlorpyrifos: 30%-40%-30%, other: 30%-40%-30%).
  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.