CORN WEED MANAGEMENT PROGRAMS William S. Curran Assistant Professor Weed Science Penn State No single herbicide program or control strategy is best in all situations. Some strategies require additional trips, specific application timings, or even specialized equipment. The following herbicide programs may require addilion You don't have to look for to find high marks for HyPerformer Seed Com. Throughout com country, the yields of HyPerformer brand corn hybrids were consistently above average. They earned the name — HyPerformers. Ask us for the area results on these high performing hybrids. HS 9843 / HS 9704 / HS 9424 Silage Hybrids HS 9773 / HS 9843 / HS 9704 Grain Hybrids HYPERFORMER VARIETIES ARE AVAILABLE THROUGH THE FOLLOWING DEALERS: John J. Hoover Tim Schadler Blain, PA Fogelsville, PA 717-536-3597 610-285-6876 T&S Sales Bethel, PA 717-933-4725 OR THE FOLLOWING Woodstown, NJ Shrewsbury, PA 609-769-0147 717-235-7961 Performance of seed may be adversely affected by environmental conditions cultural practices changes in disease races insects and other factors beyond HyPertormer Seed Company s control The limitations of warranty and liability on each bag ot HyPertormer Seed Company s seed sold are part of their terms of sales thereof al strategies for the control of other weeds that are also pre sent. With all these weeds and herbicide programs, a follow up cultivation may provide additional control. Triazine-Resistant Lambsquarters Option 1; Use Prowl herbi cide delayed preemeigence or early postemergence in con ventional, reduced, or no-till com. Apply 2.4 to 3.6 pint Prowl 3.3 E per acre a few days after planting up until the com reaches the 4-leaf stage. Prowl Lehr's Feed & Farm Supply Grange Store Pine Grove, PA Green Park, PA 717-345-3309 717-789-3416 Marion Center Milling Co. Marion Center, PA 412-397-2100 HELENA Mifflinville, PA Warriors Mark, PA Welisboro, PA 717-759-1311 814-632-5177 717-724-5800 will also help on pigweed, vel vetleaf, and most annual gras ses. Prowl by itself will not con trol emerged weeds. The cost of Prowl is approximately $8 to $l2 per acre. To avoid injury problems with Prowl, do not apply at planting. Delay appli cation until com leaches the spike stage. Also, be sure the seed furrow is completely closed before applying. . Pluses Cost Residual control Grass 1 & some broadleaf Option 2: Apply Banvel ear ly postemergence in com. App ly 1 pint/acre from spike to the 5-leaf stage of com. Banvel is also active on most annual broadleaves, plus it will sup press broadleaf perennials. Including a nonionic surfactant at 0.125 percent will increase CHEMICAL LOCATIONS: Com Tin, Lancasttr Farming, activity, but may also increase the potential for injury. Do not apply 1 pint to com greater than 8 inches tall. Do not use preemergence on soils with less than 2 percent organic matter or on coarse-textured soils. The Pluses Cost Other broadleaves Minuses Injury risk Application timing May need additional grass/ nutsedge/broadleaf r. March 1 one pint rate of Banvel costs about $9 per acre. DicamhMhc active ingredient in Banvel, is also available in the prcmix Marksman (dicamba + atra zine) and in Clarity. Minuses Slight injury risk Additional trip? Vapor drift No grass/hutsedge (Turn to Pago 20) 19
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