Global ag. chem. company Syngenta has announced the global launch of a new SDHI-based fungicide seed treatment, with a view to getting the first approvals in international markets next year.
SALTRO™, which contains the novel active ingredient ADEPIDYN™, will initially be marked for the control of blackleg in canola (oilseed rape); Sudden Death Syndrome (SDS) in soybeans and Bakanae in rice, but following initial planned registrations in the United States, Canada and Australia, use of the chemical could be expanded to other crops and diseases.
Ioana Tudor, Global Head of Syngenta Seedcare, said, “We are excited to be adding SALTRO™ to our broad seed treatment portfolio. It will offer growers even more choices to control early seedling diseases to an unmatched level, by ensuring stand uniformity with strong and healthy plant growth right from the start.”
Photo Credit: Syngenta
The post Syngenta launches Saltro fungicide seed treatment globally appeared first on Hort News on 7 June 2018.
Researchers at America’s University of Illinois at Urbana-Champaign have found that when given the choice, honey bee foragers prefer to collect sugar syrup laced with the fungicide chlorothalonil over sugar syrup alone.
“People assume that fungicides affect only fungi,” said University of Illinois entomology professor May Berenbaum, who led the new research. “But fungi are much more closely related to animals than they are to plants. And toxins that disrupt physiological processes in fungi can also potentially affect them in animals, including insects.”
To test whether foraging honey bees showed a preference for other chemicals they are likely to encounter in the wild, two feeding stations were set up in large enclosure. Foraging honey bees could fly freely from one feeder to the other, choosing to collect either sugar syrup laced with a test chemical or sugar syrup mixed with a solvent as the control.
Over the course of the study honey bees preferred the naturally occurring chemical quercetin, which is found in pollen and nectar, over controls at all concentrations tested. The bees also preferred sugar syrup laced with glyphosate at 10 parts per billion, but not at higher concentrations. While the bees actively avoided syrup containing the fungicide prochloraz, they showed a mild preference for sugar syrup laced with chlorothalonil at 0.5 and 50 parts per billion, but not at 500 ppb.
“The dose determines the poison,” Berenbaum added. “If your ability to metabolize poisons is compromised, then a therapeutic dose can become a toxic dose. And that seems to be what happens when honey bees encounter multiple pesticides.”
Photo Credit: Pexels
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A new carrot fungicide from Syngenta, launched at the British Carrot Growers Association Carrot Open Day earlier this month, enhances green leaf and provides exceptional disease control Say the manufacturers.
Reflect combines a dual action of enhancing plant green leaf health and controlling a broad spectrum of diseases. The active ingredient isopyrazam has been shown to produce visibly greener leaf canopies. Utilising latest NDVI technology, greener crops can be measurably more effective in capturing sunlight, and converting energy to yield. Enhanced light capture also gives the potential to increase sugar carbohydrate levels in roots.
Syngenta Field Technical Manager, Pete Saunders says that green leaves and upright foliage prolongs photosynthetic activity that could lead to greater yield. “Furthermore, it will help growers to extend top lifting, which is faster and cleaner,” he added. “It also gives longer frost protection that can reduce costly straw down and improved root quality.”
Mr Saunders also said that Reflect delivered excellent control of Alternaria and Powdery Mildew, which ensured a clean and healthy crop. The strong healthy foliage would significantly reduce the crop’s susceptibility to Sclerotinia. Independent trials have shown incorporating two applications of Reflect, as the second and fourth sprays in a commercial carrot fungicide programme, retained over 50% more disease free green leaf at the end of the season, compared to using a strobilurin + triazole fungicide at the same timings.
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