Written by Charlotte Cunningham from CPM Magazine
Wireworm is set to become more of a problem for potato growers, according to warnings from Syngenta. Speaking at this season’s Syngenta Potato Science Soil Pest webinar, Syngenta technical manager, Michael Tait pointed out any current monitoring through pheromone trapping, to lure click beetles – the adult stage of wireworm – principally only identifies the three common species Agriotes sputator; A. obscurus and A. lineatus. “Limited research has occurred in recent years to identify any new species of wireworm that may become more prevalent with changing climatic conditions and agronomic practices. “The loss of neonicotinoid seed treatments undoubtedly had a big effect on wireworm through the arable rotation. The expansion of growing some green cover crops could also encourage wireworm problems,” he warned. “It’s certainly something to watch out for in the future.” Alternative treatments Michael highlighted that while ethoprop (Mocap) was historically considered the standard treatment for wireworm, principally on cost, since it was no longer available growers would need to seek alternatives. He cited trials results with the nematicide Nemathorin at the wireworm-approved rate of 15 kg/ha showed it typically offered a 50-70% reduction in levels of wireworm damage to tubers, which was equivalent to results with ethoprop.…
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Wireworm is set to become more of a problem for potato growers, according to warnings from Syngenta. Speaking at this season’s Syngenta Potato Science Soil Pest webinar, Syngenta technical manager, Michael Tait pointed out any current monitoring through pheromone trapping, to lure click beetles – the adult stage of wireworm – principally only identifies the three common species Agriotes sputator; A. obscurus and A. lineatus. “Limited research has occurred in recent years to identify any new species of wireworm that may become more prevalent with changing climatic conditions and agronomic practices. “The loss of neonicotinoid seed treatments undoubtedly had a big effect on wireworm through the arable rotation. The expansion of growing some green cover crops could also encourage wireworm problems,” he warned. “It’s certainly something to watch out for in the future.” Alternative treatments Michael highlighted that while ethoprop (Mocap) was historically considered the standard treatment for wireworm, principally on cost, since it was no longer available growers would need to seek alternatives. He cited trials results with the nematicide Nemathorin at the wireworm-approved rate of 15 kg/ha showed it typically offered a 50-70% reduction in levels of wireworm damage to tubers, which was equivalent to results with ethoprop.…
The post Wireworm issues on the rise, warns Syngenta appeared first on cpm magazine.
Continue reading on CPM website...
If you are enjoying what you read then why not considering subscribing here: http://www.cpm-magazine.co.uk/subscribe/