By Josh Mosiondz, Minor Use Coordinator, OMAFRA
The Pest Management Regulatory Agency (PMRA) recently announced the approval of a minor use label expansion registration for RIDOMIL GOLD 480 SL® Fungicide for suppression of downy mildew on green onions.
RIDOMIL GOLD 480 SL® Fungicide was already labeled for management of diseases on a wide range of crops in Canada. This minor use proposal was submitted by Agriculture & Agri-Food Canada’s Pest Management Centre (AAFC-PMC) as a result of minor use priorities established by growers and extension personnel.
The following is provided as an abbreviated, general outline only. Users should be making disease management decisions within a robust integrated disease management program and should consult the complete label before using RIDOMIL GOLD 480 SL® Fungicide.
| Crop(s) | Target | Rate (mL of product / ha) | Application Information | PHI (days) |
| Green onions | Suppression of downy mildew | 208 | Apply by ground spray, foliar broadcast application. Apply every 7-14 days but do not make back-to-back applications. Alternate with a product with a different mode of action. Begin applications when conditions favour the outbreak of Downy mildew. Where possible, rotate the use of RIDOMIL GOLD 480 SL Fungicide or other Group 4 fungicides with different groups that control the same pathogens. When changing to a contact fungicide, apply the contact fungicide within 10 days of the last RIDOMIL GOLD 480 SL application. DO NOT apply by air. | 7 |
TOXIC to aquatic organisms and non-target terrestrial plants. Observe spray buffer zones specified under DIRECTIONS FOR USE. Avoid application when weather conditions favour drift from treated areas. This product demonstrates the properties and characteristics associated with chemicals detected in groundwater. The use of this product in areas where soils are permeable, particularly where the water table is shallow, may result in groundwater contamination. To reduce runoff from treated areas into aquatic habitats, avoid application to areas with a moderate to steep slope, compacted soil, or clay. Avoid application of this product when heavy rain is forecast. Contamination of aquatic areas as a result of runoff may be reduced by including a vegetative filter strip between the treated area and the edge of the water body.
Follow all other precautions, restrictions, and directions for use on the RIDOMIL GOLD 480 SL® Fungicide label carefully.
For a copy of the new minor use label contact Travis Cranmer, Vegetable Crop Specialist, OMAFRA, Guelph (519) 835-3382, your regional supply outlet, or visit the PMRA label site http://www.hc-sc.gc.ca/cps-spc/pest/registrant-titulaire/tools-outils/label-etiq-eng.php
Note: This article is not intended to be an endorsement or recommendation for this particular product, but rather a notice of registration activity
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