Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Weeds in cotton: their biology, ecology, and control.

Abstract

In this publication, information accumulated over 25 years about the biology and ecology of weeds in cotton, notably plant characteristics that contribute to weed success, weed reproduction, the influence of weed competition and weed-free periods on yields of cotton and on weed reproduction, and the use of herbicides, is discussed. The information is particularly relevant to the irrigated growing conditions of California, Arizona and New Mexico (USA). The main problematic weeds studied were the perennials, bermudagrass [Cynodon dactylon], johnsongrass [Sorghum halepense] and yellow nutsedge [Cyperus esculentus], and the annuals, ivyleaf morningglory [Pharbitis hederacea], barnyardgrass [Echinochloa crus-galli], black nightshade [Solanum nigrum] and Palmer amaranth [Amaranthus palmeri].