Most producers in arkansas are marketing seed locally as birdseed or growing sunflowers for dove hunting figure 1. 2 do not exceed the maximum label rates given above for sunflowers for the soil type.
2
This broadleaf has a palmate leaf that looks very similar to a sunflower from a distance but when it is mature it has a paper globe flower with a small round green fruit inside.
Dual ii magnum on sunflowers. A liquid herbicide formulation dual ii magnum si is designed for impregnation on dry bulk fertilizer and is recommended as a preplant surface applied preplant incorporated or pre emergence treatment when impregnated on fertilizer. Dual magnum works best when incorporated into the soil. Soil conditions were very dry following herbicide application.
Dual ii magnum si controls most annual grasses and certain broadleaf weeds. The wet spring delayed initiation of this study. Dual ii magnum also has flexible application timing.
Dual magnum is used primarily in pre planting and pre emergence weed control. Also known as s metolachlor this herbicide provides good control over broadleaf weeds sedges and annual grasses. Very little weed emergence occurred for several.
Premergence applications should be made at or shortly after planting but before weeds emerge. The paper globes look like chinese lanterns and are slightly bigger than a golf ball. Although herbicides labeled for sunflower.
Sunflower weed control sunflowers are routinely grown for doves and clean fields have historically produced better results. Incorporate into the top 2 inches of soil. Sunflowers grown for dove hunting can be a recreational and.
Dual ii magnum herbicide with long lasting control of most annual grasses and small seeded broadleaf weeds dual ii magnum eliminates early season weed competition that threatens to reduce yields in corn soybeans cotton potatoes sorghum and a variety of other crops. Sunflower is a crop that has limited commercial production in arkansas. 1 do not allow livestock to graze or feed in treated area.
Neither one of these products will control als resistant palmer amaranth kochia waterhemp and russian thistle. Grassy weed control in sunflower with dual ii magnum and other soil applied herbicides study number. Sunflowers herbicide rate acre broadcast mode of action preharvest interval restricted formulation active ingredient entry interval dual magnum 7 62sc s metolachlor 1 0 1 33 pt 0 96 1 27 lb 15 none 24 hours comments control of annual grasses and small seeded broadleaf weeds.
To avoid possible illegal residues. Producers should plan on using a preemergence application of prowl h2o or dual ii magnum for grass control in expresssun sunflower hybrids. Evaluate yellow foxtail control in no till with dual ii magnum and other soil applied herbicides.
Sonalan prowl dual magnum spartan select beyond annual morningglories 6 6 2 3 6 2 8 0 7 broadleaf signalgrass 8 8 8 8 8 8 6 9 7 cocklebur 0 0 0 1 0 0 6 0 8. Potential markets are limited and farm to market transportation may be cost prohibitive. Many populations of palmer amaranth kochia and.
Dual magnum will not control emerged weeds.