Leaf samples taken last summer by provincial potato specialists and ag chem firm Bayer CropScience throughout Canada show "widespread"presence of fungi that have mutated to resist the fungicides used most often to control them.
The sampling program found 113 isolates of Alternaria solani, the cause of early blight in potatoes. Of those, Bayer said in a release last week, over 80 per cent carried the F129L mutation that causes "reduced sensitivity to strobilurins."
That's not to say strobilurins won't work at all, but that they "don't work as well as they have in the past for controlling early blight,"Bayer said.
Early blight leaf tissue samples were collected during the summer of 2008 in Alberta, Manitoba, Ontario and Prince Edward Island by potato specialists and Bayer sales reps, the company said.
"Initial results confirm that mutant strains are widespread in Alberta, Manitoba and Ontario, which is not surprising given the widespread distribution of mutant strains of the early blight fungus in the United States,"said Rick Peters, a research scientist with Agriculture and Agri-Food Canada at Charlottetown, in Bayer's release.
"To date, P.E.I. is the only area that we've surveyed where all samples were still sensitive to strobilurins, likely due to the less frequent use of strobilurins in this province."
- Nieuws
- Aardappelketen
- Potato blights develop...
Potato blights develop fungicide resistance
Inloggen or Inschrijven to use this flag.
maart 17, 2009
Bron
Like to receive news like this by email? Join and Subscribe!
Join Our Telegram Channel for regular updates!
Related Topics:
Uitgelichte Bedrijven
Related News
november 22, 2024
AHDB and GB Potatoes agree on use of residual potato levy reserves to fund seven industry projects
november 18, 2024
BNA becomes EUROPLANT Innovation
november 17, 2024
Dewulf showcases new and proven technology at Interpom 2024
Latest News
Sponsored Content
Sponsored Content
Sponsored Content
Sponsored Content
Waar
Sponsored Content