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Tag Archives fungicide — page 2

Typical “greasy,” water-soaked lesion of the late blight on the upper leaf surface.
Crops

Trial aims to better detect late blight pathogen before it infects tomatoes

The three-year project will evaluate early detection, management approaches and potential benefits

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A new three-year project is in place at the University of Guelph, Ridgetown Campus, to help detect late blight pathogen presence in the air before it infests tomatoes, allowing for better control management. There is currently no method to detect the presence of the phytophthora infestans, making it difficult for growers properly manage late blight, […] Read more
A bumblebee on a strawberry flower.
Crops, News

Bee-based disease prevention

Inoculating flowering plants with insect-delivered fungus can help limit disease

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Fungi that can inoculate crops against disease can be applied using insects — bumblebees, to be specific. According to Bee Vectoring Technology (BVT) — a Canadian company with offices in the United States and Europe, and in the process of commercializing such a service — Bombus-delivered inoculants offer fruit farmers another way to augment their […] Read more
Farmers who attended Canada’s Outdoor Farm Show got to experience electrostatic charged spray at work.
Machinery

Sprayer power: Is electricity the next big thing in spray adjuvants?

Positively charging spray droplets can help them stick to plants, but droplets need to be small

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Getting fungicides and insecticides into the canopy and to the underside of leaves is a challenge for most sprayers. Small droplet sizes and even coverage are needed for this and for the fungicide lacquering required for control in most non-systemic products; and that comes with the risk of drift. Why it matters: With more precise […] Read more
A healthy wheat head at left and one with severe symptoms of fusarium head blight at right. (Keith Weller photo courtesy ARS/USDA)
Crops

Pearce: Multiple modes of action an emerging reality for fungicides

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As growers face more challenges from weeds, diseases and insects, many researchers, agronomists, advisers and farmers have shifted thinking from “control” of pests to “managing” them. Some of this trend is attributable to single-mode-of-action products and a reliance on one or two chemistries or technologies — but the adaptability of weed, disease and insect species […] Read more
(Arysta.cl)
Crops

UPL to buy crop chem firm Arysta

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Indian chemical manufacturer UPL has raised the financial backing for an all-cash deal to become what’s expected to be the world’s fifth biggest crop chemical firm. UPL on July 20 announced it will pay $4.2 billion to buy 100 per cent of Arysta LifeScience — the maker of Everest and Inferno herbicides, among other products […] Read more
Sclerotinia in canola. (Photo courtesy Canola Council of Canada)
Crops

Consider canola crop’s potential yield before spraying

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As July approaches and crop canopies close, sclerotinia will be on the minds of many canola growers. But will it pay to spray? Fungicide applications are more likely to be profitable when the canola hits 30-40 bushels per acre, said Colleen Redlick, senior technical development specialist at BASF. Justine Cornelsen, agronomy specialist with the Canola […] Read more
(Thinkstock photo)
Livestock

Honeybees’ attraction to fungicide ‘unsettling’

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London | Thomson Reuters Foundation — Honeybees are attracted to a fungicide used in agriculture with “unsettling implications” for global food production, a U.S. scientist said on Tuesday. Tests carried out by a team from the University of Illinois showed bees preferred to collect sugar syrup laced with the fungicide chlorothalonil over sugar syrup alone. […] Read more
Western bumblebee. (Stephen Ausmus photo courtesy ARS/USDA)
Crops

U.S. study links bumblebee declines to fungicide use

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A new look at the environmental factors around declining bumblebee populations and ranges points to a less-than-usual suspect: fungicides. “Insecticides work; they kill insects. Fungicides have been largely overlooked because they are not targeted for insects, but fungicides may not be quite as benign — toward bumblebees — as we once thought,” Scott McArt, assistant […] Read more
(Michael Thompson photo courtesy ARS/USDA)
Crops

Wet weather brings disease worries to Man. winter wheat

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CNS Canada — Excess moisture in parts of central Manitoba could bring disease problems to winter wheat fields in the region. Fungicide spraying has occurred to control diseases such as fusarium head blight and leaf diseases, but farmers are running into some problems with applications, according to Bruce Burnett, crop specialist with CWB in Winnipeg. […] Read more

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