Fruit & Vegetable Magazine

Features Production Research
Revus receives emergency reg for greenhouse cucumbers


January 17, 2012
By Press release

Topics

January
16, 2012, Guelph, Ont – Syngenta Canada Inc. recently announced that Revus®
Fungicide, when used in a tank-mix with Previcur N™ Aqueous Solution fungicide,
has received Emergency Use Registration for suppression of downy mildew on
greenhouse cucumbers in Ontario, Quebec and Nova Scotia until December 31,
2012.

January
16, 2012, Guelph, Ont – Syngenta Canada Inc. recently announced that Revus®
Fungicide, when used in a tank-mix with Previcur N™ Aqueous Solution fungicide,
has received Emergency Use Registration for suppression of downy mildew on
greenhouse cucumbers in Ontario, Quebec and Nova Scotia until December 31,
2012.

“This
Emergency Use Registration of Revus with Previcur N means that greenhouse
cucumber growers will be able to protect their cucumbers against a very
difficult-to-control and quickly spreading disease that can significantly
impact yield,” stated Eric Phillips, asset lead for Syngenta Canada Inc.

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Downy
mildew is a disease caused by the fungus-like water mould, Pseudoperonospora
cubensis, which attack only cucumbers and related crop species such as gourds,
squash, pumpkins and melons. The disease primarily affects the foliage and can
cause severe yield losses in a short period of time.

The
initial symptoms of downy mildew typically consist of angular, yellow spots on
the upper leaf surfaces. The disease can then travel to other parts of the
cucumber leaf and, if left untreated, will lead to leaf kill. If even only a
few spots appear on some of the leaves, this signifies that the disease is in
the early stages of development and treatment is recommended as soon as
possible. Since the spores disperse by air currents within the greenhouse,
further disease development may be very quick under favourable environmental
conditions.

Growers
must apply Revus fungicide as a foliar application in a tank-mix with Previcur
N when plants begin to vine or when the disease threatens. The recommended
application rate is 400 mL/ha of Revus with 1.5–2.0 L/ha of Previcur N
Fungicide. 

For
more information, visit www.syngenta.com.