Scenario 7 - Lawn Insects - Consumer, 1990

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Scenario 7 - Lawn 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 Lawns (lbs/acre) (c)	Lawn Acres Treated (thousands) (calculated) (d)	Probability for Lawns (calculated) (e)
Active Ingredient (a)	Fertilizer/ Insecticide Combination Products (a)	Straight Insecticide Products (a)	Lawn	Outdoor Plants	Nonplants	Application Rate for Lawns (lbs/acre) (c)	Lawn Acres Treated (thousands) (calculated) (d)	Probability for Lawns (calculated) (e)
Chlorpyrifos	1,341	1,121	1,677	448	336	2	839	53%
Diazinon	670	2,243	1,231	1,009	673	3	410	26%
Malathion	0	1,495	150	897	449	2	75	5%
Carbaryl	0	1,869	187	1,121	561	3	62	4%
Other	168	748	392	299	224	2	196	12%
	2,179	7,476	3,637	3,775	2,243		1,582
Kline (Hodge and Rafter, 1992a) 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: 20% of total is applied to lawns, 50% to outdoor plants, 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%). Meister Publishing Weed Control manuals Pounds applied to lawns divided by application rate for lawns. Lawn acres treated with each active ingredient divided by total lawn acres treated.