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Scenario 19 - Outdoor Plant/tree Diseases - Consumer, 1990
Method 2, Confidence medium
Active
Ingredient (a)		 Total pounds
applied to lawns
and outdoor
plants/trees
(thousands) (a)		 Total pounds applied to lawns and
outdoor plants/trees (thousands) (b)		 Application
Rate for Outdoor
Plant/trees
(lbs/100 gal) (c)		 Outdoor
Plant/tree
Acres Treated
(thousands)
(calculated) (d)		 Probability
(calculated) (e)
Outdoor
plants/trees		 Lawn
Captan 525 525 0 1.2 438 42%
Benomyl 225 100 125 0.5 200 19%
Chlorothalonil 450 100 350 1.0 100 10%
Other 300 300 0 1.0 300 29% (f)
  1,500 1,025 475   1,038  
  1. Kline (Hodge and Rafter, 1992a)
  2. Split of each active ingredient into lawn vs. outdoor plants/trees was based on judgment, with the condition that the total pounds for
    outdoor plant/tree active ingredients was 68% of the total poundage, and the total pounds for lawn active ingredients was 32% of the
    total poundage (also based on judgment).
  3. Hagan et al. (1993)
  4. Pounds applied divided by application rate. We assume that 100 gallons of finished spray is applied to an acre, a common assumption.
  5. Acres treated for each active ingredient divided by total acres treated.
  6. Based on judgment, we believe that "other" active ingredients are thiophanate (8%), sulfur (5%), PCNB (5%), and others (11%).