organic weed killer

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• weed killer — Synonyms and related words: acaricide, anthelmintic, antibiotic, antiseptic, bug bomb, carbamate insecticide, chemosterilant, chlorinated hydrocarbon insecticide, contact poison, defoliant, disinfectant, eradicant, fumigant, fungicide, germicide …   Moby Thesaurus

• 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

• Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

• 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

• plant disease — ▪ plant pathology Introduction       an impairment of the normal state of a plant that interrupts or modifies its vital functions.       All species of plants, wild and cultivated alike, are subject to disease. Although each species is… …   Universalium

• chlorophenol — /klawr euh fee nawl, nol, klohr /, n. Chem. 1. any of three isomers having the formula C6H5ClO, derived from chlorine and phenol, used chiefly as intermediates in the manufacture of dyes. 2. any derivative of phenol of which one or more hydrogen… …   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

• pesticide — Synonyms and related words: Cain, aborticide, acaricide, anthelmintic, antibiotic, antiseptic, apache, assassin, assassinator, bactericide, bloodletter, bloodshedder, bravo, bug bomb, burker, butcher, button man, cannibal, carbamate insecticide,… …   Moby Thesaurus

• poison — Synonyms and related words: Cain, DDD, DDT, Paris green, abomination, abuse, acaricide, activate, adulterate, adulteration, afflict, aggrieve, alloy, annihilate, anthelmintic, antibiotic, antimony, antiseptic, apache, arsenic, arsenic trioxide,… …   Moby Thesaurus

• Atrazine — Chembox new Name = Atrazine ImageFile = Atrazin.png ImageName = Atrazine ImageFile1 = Atrazine 3D balls.png ImageName1 = Atrazine IUPACName = 1 chloro 3 ethylamino 5 isopropylamino 2,4,6 triazine OtherNames = Atrazine See also… …   Wikipedia