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For 360 grams per litre (0.013 lb/cu in) formulations, European regulations allow applications of up to 12 litres per hectare (1.1 imp gal/acre) for control of perennial weeds such as couch grass. More commonly, rates of 3 litres per hectare (0.27 imp gal/acre) are practiced for control of annual weeds between crops. [52]
Application rates fell from 1,000–2,500 grams of active ingredient per hectare (g/ha) in the 1950s to 40–100 g/ha in the 2000s. [15] Despite this, amounts used have increased. In high income countries over 20 years between the 1990s and 2010s amounts used increased 20%, while in the low income countries amounts increased 1623%.
The product is typically used at application rates of 10 g a.i. per hectare, often in combination with other herbicides such as paraquat and glyphosate in direct drilling of cereals and canola. [ 9 ] Human safety
Glyphosate has proved divisive since the World Health Organization's cancer research agency concluded in 2015 that it was probably carcinogenic to humans. EU to renew herbicide glyphosate approval ...
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BRUSSELS (Reuters) -The European Commission proposed on Wednesday extending EU approval for use of glyphosate, the active ingredient in Bayer AG's Roundup weed killer, by 10 years.
The glyphosate-based herbicide RoundUp (styled: Roundup) was developed in the 1970s by Monsanto. Glyphosate was first registered for use in the U.S. in 1974. [4] Glyphosate-based herbicides were initially used in a similar way to paraquat and diquat, as non-selective herbicides. Attempts were made to apply them to row crops, but problems with ...
A 2008–2009 survey of 144 populations of waterhemp in 41 Missouri counties revealed glyphosate resistance in 69%. Weeds from some 500 sites throughout Iowa in 2011 and 2012 revealed glyphosate resistance in approximately 64% of waterhemp samples. As of 2023, 58 weed species have developed glyphosate resistance. [70]