Pesticides Applied to Potatoes
Washington, 1996

Fall Potatoes: Pesticides Applied in Washington, 1996            
(Washington Acres Planted: 163,000) Area Applied Acres Treated Number of Applications Rate per Application Rate per Crop Year Total Applied
  (Percent)   (Number) (#s per acre) (#s per acre) (Pounds)
             
Herbicides:            
EPTC 37 60,310 1.1 3.74 4.07 243,000
Metribuzin 60 97,800 1 0.36 0.36 35,000
Pendimethalin 37 60,310 1 0.59 0.59 35,000
Total: All Herbicides 134 218,420       313,000
Per Planted Acre           1.92
             
Insecticides:            
Aldicarb 18 29,340 1 2.87 2.87 82,000
Carbofuran 43 70,090 1.2 0.72 0.89 63,000
Endosulfan 1 1,630 2.3 0.81 1.85 4,000
Esfenvalerate 19 30,970 1.1 0.03 0.03 1,000
Methamidophos 74 120,620 1.6 0.91 1.45 176,000
Phorate 8 13,040 1 3.02 3.02 40,000
Propargite 15 24,450 1.1 1.74 1.84 46,000
Total: All Insecticides 178 290,140       412,000
Per Planted Acre           2.53
             
Fungicides:            
Chlorothalonil 74 120,620 2.5 0.97 2.45 295,000
Iprodione 25 40,750 1.1 1 1.08 44,000
Mancozeb 46 74,980 1.8 1.24 2.27 170,000
Metalaxyl 34 55,420 1.2 0.23 0.27 15,000
Metiram 22 35,860 3.1 1.57 4.91 180,000
Sulfur 8 13,040 3.3 4.98 16.24 225,000
Triphenyltin hydrox. 16 26,080 2 0.17 0.35 9,000
Total: All Fungicides 225 366,750       938,000
Per Planted Acre           5.75
             
Other Chemicals:            
Dichloropropene 22 35,860 1 175.04 175.04 6,188,000
Diquat 39 63,570 1.2 0.37 0.43 27000
Metam-sodium 30 48,900 1 114.61 114.61 5,567,000
Total: Other Chemicals 91 148,330       11,782,000
Per Planted Acre           72.28
             
Totals: All Chemicals 628 1,023,640       13,445,000
Per Planted Acre           82.48
             

Last Updated on 11/16/97
By Karen Lutz
Email: karen@hillnet.com
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