Prepackaged Herbicide Mixtures

There are many prepackaged herbicide mixtures for field corn. Although it is usually known which herbicides are included, questions do arise about the relative amounts of each herbicide in these mixtures. Information about the active ingredients in some of these products is summarized in Table 3.7.5.

Prepackaged herbicide mixtures eliminate the inconvenience of tank mixing herbicides to obtain broad spectrum (grass and broadleaf) weed control needed in most fields. Not only do they make spraying easier, but they can eliminate some of the problems associated with container disposal. Finally, these mixtures often can be purchased for less than the cost of equivalent amounts of the individual products. The disadvantage of these premixes is that the user sacrifices some flexibility in adjusting the rates of each herbicide to what is needed in a given situation.

Table 3.7.5

Components of some prepackaged corn herbicide mixtures
Product Formulation Active Ingredients of Each Herbicide per Gallon
*§ Bicep II Magnum/*§ Cinch ATZ 5.5L 2.4 lb. *§ Dual II Magnum + 3.1 lb. *atrazine
*§ Bicep Lite II Magnum/*§ Cinch ATZ Lite 6L 3.33 lb. *§ Dual II Magnum + 2.67lb. *atrazine
*§ Degree Xtra 4.04L 2.7 lb. *§ acetochlor + 1.34 lb. *atrazine
*§ FulTime NXT 4.04CS 2.7 lb. *§ Surpass NXT + 1.34 lb. *atrazine
*§ G-Max Lite 5L 2.25 lb. *§ Outlook + 2.75 lb. *atrazine
*§ Guardsman Max 5L 1.7 lb. *§ Outlook + 3.3 lb. *atrazine
*§ Harness Xtra 6L 4.3 lb. *§ Harness + 1.7 lb. *atrazine
*§ Harness Xtra 5.6L 5.6L 3.1 lb. *§ Harness + 2.5 lb. *atrazine
*§ Keystone LA NXT 6SE 4.3 lb. *§ Surpass NXT + 1.7 lb. *atrazine
*§ Keystone NXT 5.6SE 3.1 lb. *§ Surpass NXT + 2.5 lb. *atrazine
*§ Lexar EZ 3.7L 1.74 lb. *§ Dual II Magnum + 0.224 lb. Callisto + 1.7 lb. *atrazine
*§ Lumax EZ 3.67L 2.49 lb. *§ Dual II Magnum + 0.249 lb. Callisto + 0.935 lb. *atrazine
*§ Sure Start 4.25L 3.75 lb. *§ Surpass EC + 0.38 lb. *§ Stinger + 0.12 lb. § Python
*§ Triple Flex 4.25L 3.75 lb. *§ Harness + 0.38 lb. *§ Stinger + 0.12 lb. § Python
*§ Verdict 5.57EC 5 lb. *§ Outlook + *§ Sharpen
* Restricted-use pesticide; may be purchased and used only by certified applicators or someone under the direct supervision of a certified applicator.
§ Not for use in Nassau and Suffolk Counties; pesticide labels that indicate “Not for use on Long Island, NY” mean that use is prohibited in Nassau and Suffolk Counties only.