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Show Some chemicals affect the foliage and the soil such as . Trodon and Branvil. When spraying WildMorning Glory you should also get as much top growth as possible. pos-sible. For further information contact USU Extension Agent Grant Esplin. COUNTY AGENT OUTLINES WEED CONTROL We are having some warm days and people are getting interested in their gardens and yards. Weed control is something we have to do continually con-tinually and I'm getting a few questions on what to use and when to control weeds, says Grant M. Esplin, County Agent. Chemicals can be veryef-fective veryef-fective in controlling weeds providing they are applied according to the directions direct-ions on the label. There are many different types of chemicals and can be broken down as follows according to how they control con-trol weeds and how and when they can be used. 1. Soil sterilants or soil treatments. 2. Foliage sprays applied to top growth. 3. Desicants, applied to top growth. 4. Some affect both foliage and soil. Soil sterilants usually should be applied in the fall so that winter moisture will take them into the soil before be-fore flood irrigation is applied ap-plied and before the water is turned in the ditch if applied on ditch banks. Soil sterilants are absorbed absor-bed by the roots and kill plants by that method. Foliage sprays must be sprayed on the leaves. It is absorbed by the leaves and is translocated into the roots. This method needs a good top growth before applying. For example, Quack Grass should be at least six inches tall before it is sprayed with Roundup. |