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1 <br /> 1 <br /> 1 Chlorpyrifos corinixzori n <br /> Continued <br /> Determining Setback distances are for a broadcast application. When labels specify the <br /> ' application application rate as fluid ounces per 1000 feet of row or 100 feet of row,the <br /> rate- "broadcast equivalent application rate"is the rate of active ingredient(lbs <br /> Converting AL/ac)within the entire application block. The"broadcast equivalent <br /> row feet rate to application rate"must be calculated to determine the setback distance. <br /> ' lbs Al/ac <br /> Generalized formula converting fl oz per row feet to pints Per acre <br /> (fl oz per 1000 row feet)_(row ioidth in inches) x 32.67* <br /> *32.67 is a factor combining several unit conversions,including inches <br /> to feet,square feet to acres,and fluid ounces to pints. For rates <br /> expressed as fl oz/ 100 row feet,use 326.7 instead. <br /> ' Example—Lorsban Advanced <br /> • Label application rate for onions is 0.37 fluid ounces per 1000 feet of <br /> ' row, if the row spacing is 6 inches. <br /> • Pints/acre=0.37 x 32.67_6=2.01 pints/acre. <br /> • 2.01 pints/acre is converted to lbs AUac using the calculation above. <br /> Setback A setback distance must be established for every chlorpyrifos application near <br /> distances a sensitive site.The setback distance must extend outward from the perimeter <br /> ' of the sensitive site to the perimeter of the application block <br /> Use the following application and rate specific setback distance tables for all <br /> chlorpyrifos applications. <br /> Aerial application— ixed win or rotary <br /> Application Rate Occupied Sensitive Site <br /> ' lbs Al/ac Setback Distance(feet <br /> <1 250 <br /> >1 —2.3 500 <br /> ' Ground applications <br /> Application Rate Occupied Sensitive Site Setback Distance(feet) <br /> ' (lbs AUac) Sprinkle Chemigation or ground boom Airblast <br /> <1 150 I50 <br /> >1 -2 350 350 <br /> ' >2—4 400 400 <br /> >4—6 prohibited 5o0 <br /> ' Continued on next page <br /> 3 <br /> Chlorpyrifos <br /> t <br />