Service Forester's Handbook

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====== Dilution of Pesticides ======
^Pesticide Formulation                                        ^Amount of formulation needed per acre to obtain the following amounts of chemical per acre ^^^^|
^                                                             ^1/8 lb.              ^1/4 lb.            ^1/2 lb.            ^3/4 lb.             ^1 lb.       |
|1% dust                                                      |12 1/2 lbs.          |25 lbs.            |50 lbs.            |75 lbs.             |100 lbs.    |
|5% dust                                                      |2 1/2 lbs.           |5 lbs.             |10 lbs.            |15 lbs.             |20 lbs.     |
|10% dust                                                     |1 1/4 lbs.           |2 1/2 lbs.         |5 lbs.             |7 1/2 lbs.          |10 lbs.     |
|25% wettable powder                                          |1/2 lbs.             |1 lbs.             |2 lbs.             |3 lbs.              |4 lbs.      |
|40% wettable powder                                          |1/3 lbs.             |2/3 lbs.           |1 1/4 lbs.         |7/8 lbs.            |2 1/2 lbs.  |
|50% wettable powder                                          |1/4 lbs.             |1/2 lbs.           |1 lbs.             |1 1/2 lbs.          |2 lbs.      |
|75% wettable powder                                          |1/6 lbs.             |1/3 lbs.           |2/3 lbs.           |1 lbs.              |1 1/3 lbs.  |
|10-12% emulsion 1lb active ingredients/gallon                |1 pt.                |1 qt.              |2 qt.              |3 qt.               |1 gal.      |
|15-20% emulsion concentrate 1 1/2 active ingredients/ gallon |1/3 qt.              |2/3 qt.            |1 1/3 qt.          |2 qt.               |2 2/3 qt.   |
|25% emulsion concentrate 2lb active ingredients/gallon       |1/2 pt.              |1 pt.              |1 qt.              |3 pt.               |2 qt.       |
|40-50% emulsion concentrate 4lb active ingredients/gallon    |1/4 pt.              |1/2 pt.            |1 pt.              |1 1/2 pt.           |1 qt.       |
|60-65% emulsion concentrate 6lb active ingredients/gallon    |1/6 pt.              |1/3 pt.            |2/3 pt.            |1 pt.               |1 1/3 pt.   |
|70-75% emulsion concentrate 8lb active ingredients/gallon    |1/8 pt.              |1/4 pt.            |1/2 pt.            |3/4 pt.             |1 pt.       |

^Rate     ^1 gallon of mix covers:                ^^^^|
^Feet of rows and spacing between rows           ^^^^^|
^Gal/acre ^Square ft  ^3 ft ^3 1/2 ft  ^4 ft ^4 1/2 ft|
|5        |8,712      |2,904|2,489     |2,178|1,714   |
|10       |4,356      |1,452|1,245     |1,089|857     |
|50       |871        |290  |266       |218  |171     |
|75       |581        |194  |249       |145  |114     |
|100      |436        |145  |125       |109  |86      |

^Percent  ^Dilution        ^P/M        ^Grams/Liter   |
|1.0      |1:100           |10,000     |10.0          |
|0.1      |1:1,000         |1,000      |1.0           |
|0.01     |1:10,000        |100        |0.1           |
|0.001    |1:100,000       |10         |0.01          |
|0.0001   |1:1,000,000     |1          |0.001         |

1 Part/Million (P/M): 
   By Weight: 1 milligram per kilogram
   By Volume: 1 microliter per liter 
   One ounce in 7,500 gallons, or 1 lb in 120,000 gallons is 
   approximately 1 part per million by weight in water.
Service Forester's Handbook

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