The Worst Weed In The World

Decent Essays
Purple nutsedge (Cyperus rotundus) has been called the worst weed in the world. It can survive the highest temperature and can grow in all types of soil known in agriculture. It is considered as a problem by farmers because of its menacing, quick growth in gardens and fields. Purple nutsedge is hard to manage once it is established because it produces an extensive system of underground tubers from which they can generate. It greatly impacts agriculture and has unfavorable effects on natural ecosystem.
Purple nutsedge is perennial, colonial, and herbaceous with fibrous roots that grow from 7-40 cm tall and reproduced extensively by tubers and rhizomes. The tubers located several inches deep in the soil profile are protected from lethal temperatures, and its deep fibrous system keeps the tubers hydrated. These tubers can survive for 1-3 years. When flooding,
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The common methods used to manage weeds include prevention and cultural, mechanical, biological, and chemical means. Herbicides can be defined as crop- protecting chemicals used to kill weedy plants or interrupt normal plant growth. Herbicides provide a convenient, economical, and effective way to help manage weeds. They allow fields to be planted with less tillage, allow earlier planting dates, and provide additional time to perform the other tasks that farm or personal life require. Due to reduced tillage, soil erosion has been reduced from about 3.5 billion tons in 1938 to one billion tons in 1997, thus reducing soil from entering waterways and decreasing the quality of the nation’s surface water. Without herbicide use, no-till agriculture becomes impossible. However, herbicide use also carries risks that include environmental, ecological, and human health effects. It is important to understand both the benefits and disadvantages associated with chemical weed control before selecting the appropriate
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