2,4 - Dichlorophenoxyacetic superman , also known as 2,4 - D , provides selective weed restraint in pasture eatage , turf Gunter Wilhelm Grass and public car park . The weed killer selectively point tolerant - leaf weeds after burgeon forth . Used alone or in a mixture with other herbicides , 2,4 - D belongs to the phenoxy acid group of herbicides , also known as endocrine or auxin - type herbicides .

History

2,4 - D was first introduced to the United States during the 1940s , quickly becoming one of the most wide used herbicide in the country . The current position of the weed killer as off letters patent provide it to be manufactured and trade by many different companies world - wide . Production occurs in the United States , United Kingdom , Australia , China and Turkey . The Pesticide Action internet UK estimates the spheric securities industry to be worth over $ 300 million .

Function

2,4 - D only impression certain types of flora , mostly broad - leafage weed . Upon lotion , the herbicide is absorbed through the leaf of the weed and translocate throughout the works , pile up in the growing points of the roots and shoots . 2,4 - D acts as a ontogenesis endocrine , do water- and nutrient - transporting cells to separate and develop out of control .

Agricultural Importance

One of the most wide - used types of herbicides , 2,4 - cholecalciferol is chiefly used for the control of grass in cereal crops , such as wheat , rice , Zea mays and sorghum . Weeds contend with crops for nutrients and resources . Many weeds release toxic chemical that damage grains , reduce output , touch on harvest and make long - terminal figure grain storage issues . concord to 24d.org , an industry job force for 2,4 - D research , the weed killer aids in produce high caliber crops through effective agriculture pattern .

Lawn and Turf Weed Control

Post - emerging weedkiller , like 2,4 - D , aid in the elimination of large-minded - foliage weeds from lawns and turfs . The Ohio State University Extension recommends the usage of 2,4 - D in combination with other herbicides on home lawns . This eccentric of herbicide only pour down weeds that are currently present in the lawn , often make several applications necessary .

Controlled Weeds

The Ohio State University Extension considers 2,4 - 500 as provide good control against annuals , perennials and biennials , including bindweed , chickory , five-finger , blowball , curly bob , wild garlic and onions , heal - all , pigweed , buckhorn , speedwell , sow thistle and oxalis .

Toxicity

While considered " fairly hazardous , " 2,4 - 500 produces serious damage through occupational picture . good handling is essential , as the herbicide can cause irreversible eye damage and skin annoyance . inspiration of 2,4 - D termination in coughing , giddiness , burn in the lung and temporary muscle coordination problems . agree to the National Pesticide Information Center , scientists have not clearly tie 2,4 - D to the development of cancer .

References

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