The occurrence of herbicide-resistant we
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Heap, Ian M.
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Article
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1997
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John Wiley and Sons
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English
β 240 KB
The 1995/6 International Survey of Herbicide-Resistant Weeds recorded 183 herbicide-resistant weed biotypes (124 di β erent species) in 42 countries. The increase in the number of new herbicide-resistant weeds has remained relatively constant since 1978, at an average of nine new cases per year world