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Powdery mildew on greenhouse lettuce


March 14, 2011
By Jim Chaput OMAFRA

March 14, 2011 – Greenhouse lettuce and outdoor ornamentals are two of the crops that will benefit from a recent label expansion for Pristine WG Fungicide ( (boscalid + pyraclostrobin).

March 14, 2011 – Greenhouse lettuce and outdoor ornamentals are two of the crops that
will benefit from a recent label expansion for Pristine WG Fungicide (
(boscalid + pyraclostrobin).

The Pest Management Regulatory Agency (PMRA) recently announced the
approval of several minor use label expansions for the product:

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• Suppression of Septoria leaf spot on
lowbush blueberries.
• Control of anthracnose on grapes.

• Control of
gymnosporangium rust on outdoor ornamentals.

• Control of apple scab on
crabapple trees.

• Suppression of powdery mildew on greenhouse lettuce.

Pristine WG Fungicide was already labelled for use on a range of Canadian specialty and minor crops in the field and greenhouse and has a proven record of efficacy and safety.

These minor use submissions were sponsored by the Agriculture & Agri-Food Canada, Pest Management Centre (PMC) and provinces in response to minor use priorities identified by blueberry, grape, greenhouse lettuce and ornamental producers in Canada.

Disease management has been a high priority for fruit, vegetable and ornamental producers and the registration of Pristine fungicide will provide producers with an effective and useful disease management and resistance management tool.

The specifics of each new minor use label expansion are outlined on the updated Pristine fungicide label. Users should consult the complete label before using Pristine WG Fungicide.
   
Pristine fungicide should be used in an integrated disease management program and in rotation with other management strategies. Follow all other precautions and directions for use on the Pristine fungicide label.
These minor use submissions were sponsored by the PMC and provinces as a result of priorities established in consultation with producers. We also wish to thank the personnel of BASF Canada Inc. for their support of these registrations and the personnel of the Pest Management Regulatory Agency for evaluating and approving this important pest management tool.

For copies of the new minor use label for grapes contact Wendy McFadden-Smith, OMAFRA, Vineland 905-562-3833, for greenhouse lettuce contact Gillian Ferguson, OMAFRA, Harrow 519-738-1258, for outdoor ornamentals, contact Jennifer Llewellyn, OMAFRA, Guelph, 519-824-4120 ext. 52671, Jim Chaput, OMAFRA, Guelph 519-826-3539, or visit https://agro.basf.ca/basf/agsolutions/SelectRegion.htm and www.engageagro.com.

Jim Chaput is the minor use coordinator with the Ontario Ministry of Agriculture, Food and Rural Affairs.


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