Agricultural Reviews
Year : 2000, Volume : 21, Issue : 2
First page : ( 80) Last page : ( 88)
Print ISSN : 0253-1496.

Herbicide resistance in weeds: A review

Sanbagavalli S., Kandasamy O.S., Ganesan K.

Department of Agronomy and Entomology, Tamil Nadu Agricultural University, Coimbatore-641 003, India.

Abstract

At global level, herbicides constitute 47% of the total pesticides used during 1997–98. About 72% of the herbicide consumption took place in the developed countries viz., USA, Western Europe and Japan. In India, the herbicide consumption is 16% of the total pesticides used and it is expected to increase upto 20% by the end of the 9th five year plan. Though the herbicide consumption is very low in India, there are growing concerns and questions about herbicide residue in food stuffs, soil, ground water and atmosphere, potential weed shift and resistance to herbicides. Research reports on the effect of continuous application of same herbicide for weed management indicate that weed resistance to particular herbicide. Herbicide resistant weeds develop because of selection pressure from the continuous use of chemicals with the same mode of action. Based on foreign work, we can know the chances for the occurrence of herbicide groups which are going to develop resistance in India.

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