Offered Papers Theme A: Efficient Production from Grassland
Description
The new herbicide GF-839 is a combination of a new active substance aminopyralid and the fully approved active substance fluroxypyr in the quantities 30 g ae/l aminopyralid + 100 g ae/l fluroxypyr. It is an emulsion, water in oil formulation (EO), and will be sold as a foliar acting herbicide for the long-term control of annual and perennial broad-leaved weeds in grassland. Globally aminopyralid can be used for weed control in range and pasture situations and plantations; in addition, uses in oilseed rape and cereals are also being explored. Aminopyralid is the most active halopyridine yet discovered and as a synthetic hormone it poses a low risk of resistance. Rumex obtusifolius (broad-leaved dock), R. crispus (curled leaf dock), Cirsium arvense (creeping thistle), C. vulgare (spear thistle), Urtica dioica (common nettle), Ranunculus repens (creeping buttercup), Taraxacum officinale (dandelion) and Stellaria media (common chickweed) are all pernicious, persistent weeds of grassland in Europe. If left unchecked they can lead to significant reductions in sward quality and quantity as well as spreading to neighbouring areas. In the UK 1.1M ha of grassland are infested with thistles, and 400,000 ha with more than 1/m2, equating to a potential loss of 1Mt DM / year. Docks at an infestation level of 10% cause potential silage losses of 10%. There are currently various products on the market for control of these weeds but GF-839 differs in that it is the first new compound to be developed primarily for the grassland market for over 30 years, and offers reliable long-term control of all of these weeds, in combination with good grassland management practice, whilst also offering a high degree of selectivity to grass.
Citation
Egerton, S. A.; Bailey, A. D.; and Brinkworth, Louise A., "A New Herbicide (GF-839) for Long-Term Control of Annual and Perennial Broad-Leaved Weeds in Grassland" (2023). IGC Proceedings (1993-2023). 327.
https://uknowledge.uky.edu/igc/20/themeA/327
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
A New Herbicide (GF-839) for Long-Term Control of Annual and Perennial Broad-Leaved Weeds in Grassland
The new herbicide GF-839 is a combination of a new active substance aminopyralid and the fully approved active substance fluroxypyr in the quantities 30 g ae/l aminopyralid + 100 g ae/l fluroxypyr. It is an emulsion, water in oil formulation (EO), and will be sold as a foliar acting herbicide for the long-term control of annual and perennial broad-leaved weeds in grassland. Globally aminopyralid can be used for weed control in range and pasture situations and plantations; in addition, uses in oilseed rape and cereals are also being explored. Aminopyralid is the most active halopyridine yet discovered and as a synthetic hormone it poses a low risk of resistance. Rumex obtusifolius (broad-leaved dock), R. crispus (curled leaf dock), Cirsium arvense (creeping thistle), C. vulgare (spear thistle), Urtica dioica (common nettle), Ranunculus repens (creeping buttercup), Taraxacum officinale (dandelion) and Stellaria media (common chickweed) are all pernicious, persistent weeds of grassland in Europe. If left unchecked they can lead to significant reductions in sward quality and quantity as well as spreading to neighbouring areas. In the UK 1.1M ha of grassland are infested with thistles, and 400,000 ha with more than 1/m2, equating to a potential loss of 1Mt DM / year. Docks at an infestation level of 10% cause potential silage losses of 10%. There are currently various products on the market for control of these weeds but GF-839 differs in that it is the first new compound to be developed primarily for the grassland market for over 30 years, and offers reliable long-term control of all of these weeds, in combination with good grassland management practice, whilst also offering a high degree of selectivity to grass.
