BASF shows off new fungicides at field day

06/25/2013 09:07:00 PM
Vicky Boyd

In most markets except for grapes, BASF will slowly replace Pristine with Merivon or Priaxor, says Steve Broscious, technical market manager.

In the other crops, Merivon provides better disease control than Pristiine and that’s why the company plans to phase out Pristine, he says.

In grapes, BASF researchers didn’t see significant disease control improvements with Merivon. So Pristine will remain in the grape market, Broscious says.

In Florida strawberries, Merivon controls botrytis gray mold, including those strains with multiple resistance to boscalid and QoIs.

“It’s effective on those strains of botrytis, so we see big things there,” Broscious says. “It’s the number 1 product in terms of the length of post-harvest disease control.

“But I think growers need to be careful to manage their modes of action.”

Although the label recommends making no more than two consecutive applications of Merivon before rotating to a different mode of action, Broscious says he’d prefer to see only one application before switching to further reduce the chances of resistance developing.

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