chemical weed control

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• Weed control — is the botanical component of pest control, stopping weeds from reaching a mature stage of growth when they could be harmful to domesticated plants and livestock by physical and chemical methods. In order to reduce weed growth, many weed control… …   Wikipedia

• Weed — /weed/, n. Thurlow /therr loh/, 1797 1882, U.S. journalist and politician. * * * Any plant growing where it is not wanted. On land under cultivation, weeds compete with crops for water, light, and nutrients. On rangelands and in pastures, weeds… …   Universalium

• weed — weed1 weedless, adj. weedlike, adj. /weed/, n. 1. a valueless plant growing wild, esp. one that grows on cultivated ground to the exclusion or injury of the desired crop. 2. any undesirable or troublesome plant, esp. one that grows profusely… …   Universalium

• chemical industry — Introduction       complex of processes, operations, and organizations engaged in the manufacture of chemicals and their derivatives.       Although the chemical industry may be described simply as the industry that uses chemistry and… …   Universalium

• Weed — Chanvre  Cet article concerne le chanvre. Pour les autres significations du mot cannabis, voir Cannabis (homonymie) …   Wikipédia en Français

• Pest control — redirects here. For the Doctor Who audio adventure, see Pest Control (Doctor Who audio). A crop duster applies low insecticide bait that is targeted against Western corn rootworms Pest control refers to the regulation or management of a species… …   Wikipedia

• Biological pest control — Biological control of pests in agriculture is a method of controlling pests (including insects, mites, weeds and plant diseases) that relies on predation, parasitism, herbivory, or other natural mechanisms. It can be an important component of… …   Wikipedia

• agricultural technology — Introduction       application of techniques to control the growth and harvesting of animal and vegetable products. Soil preparation       Mechanical processing of soil so that it is in the proper physical condition for planting is usually… …   Universalium

• fruit farming — Introduction       growing of fruit crops, including nuts, primarily for use as human food.       The subject of fruit and nut production deals with intensive culture of perennial plants, the fruits of which have economic significance (a nut is a …   Universalium

• University of the Philippines, Los Baños — Infobox University name = native name = Unibersidad ng Pilipinas Los Baños motto = Honor and Excellence established = June 18, 1908 (system) March 6, 1909 (campus) type = National university president = Emerlinda R. Roman chancellor = Luis Rey I …   Wikipedia

• Herbicide — Weeds killed with herbicide Herbicides, also commonly known as weedkillers, are pesticides used to kill unwanted plants.[1] Selective herbicides kill specific targets while leaving the desired crop relatively unharmed. Some of these act by… …   Wikipedia