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Some weed seeds (such as those of Bermuda grass and species of bindweed) may persist under the barrier and within the soil seed bank. [3] Termites are attracted to the area. [11] While they are a natural part of the ecosystem that transforms the weed barrier into rich soil, they can pose a hazard to nearby wood-framed structures.
Weed control is a type of pest control, which attempts to stop or reduce growth of weeds, especially noxious weeds, with the aim of reducing their competition with desired flora and fauna including domesticated plants and livestock, and in natural settings preventing non native species competing with native species.
If applied when preemergent herbicide is needed, the fertilizer may burn or stress the lawn. If applied after the lawn "green-up", weed seeds will have already germinated and the herbicide will be ineffective. [3] Preemergants do not prevent seeds from germinating, they prevent cell division, and prevent vital parts of the weed from forming
Gonzales v. Raich (previously Ashcroft v.Raich), 545 U.S. 1 (2005), was a decision by the U.S. Supreme Court ruling that, under the Commerce Clause of the U.S. Constitution, Congress may criminalize the production and use of homegrown cannabis even if state law allows its use for medicinal purposes.
Root barriers are also used to separate plant roots from each other. In particular, walnut trees secrete the chemical juglone which is toxic to other plants but the use of root barriers can prevent the yield reduction that would normally occur when walnut trees are alley cropped with maize as often occurs in the American Midwest .
Capt. Silvia Sanchez claims her decision to review the arrest of a 16-year-old girl put her on a collision course with the union for more than 8,000 rank-and-file Los Angeles police officers.