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Cucurbit Downy Mildew

Cucurbit Downy Mildew updates July 2022 | ipmPIPE

July 20, 2022July 21, 2022 cuccap Cucurbit Crop & Disease Management

The Cucurbit downy mildew forecast reports disease incidents from multiple locations in the United States. Website visitors have the option to receive alerts via email for a specific location.

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Cucurbit Downy Mildew updates June 2022 | ipmPIPE

June 15, 2022June 15, 2022 cuccap Cucurbit Crop & Disease Management

The Cucurbit downy mildew forecast website provides a map and list of recent disease outbreaks.

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CucCAP researchers evaluate disease control options for downy mildew on pickling cucumber

June 14, 2022August 1, 2022 cuccap CucCAP Disease Management Team, CucCAP Featured Articles

Cucurbit downy mildew (CDM), is an economically significant disease of cucurbitaceous crops in the Eastern United States (US). Cucumbers are particularly susceptible and as a result, disease management of this pathogen relies heavily on fungicide use.

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Downy Mildew | Alabama Cucurbit Disease Update

May 13, 2022May 24, 2022 cuccap Cucurbit disease outbreaks

A late freeze in Florida combined with hot and dry conditions in May may have contributed to no presence of Cucurbit Downy Mildew in Alabama so far during this growing season.

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Disease update for Florida watermelons

May 11, 2022May 23, 2022 cuccap Cucurbit Crop Production news

UF/IFAS Extension reports on disease priorities for Florida cucurbit growers. Management of Downy mildew, gummy stem blight, and powdery mildew management on watermelon and cantalope.

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Cucurbit Downy Mildew Management

May 9, 2022May 24, 2022 cuccap CucCAP Disease Management Team

CucCAP plant pathologist, Anthony Keinath published a factsheet on cucurbit downy mildew management with sections on symptoms and signs, how cucurbit downy mildew spreads, cultural practices to limit cucurbit downy mildew, and spraying for cucurbit downy mildew.

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Watermelon Fungicide Guide

March 28, 2022May 24, 2022 cuccap Cucurbit Crop & Disease Management

CucCAP plant pathologist, Anthony Keinath published a watermelon fungicide guide for 2022.

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Advances made against cucumber downy mildew

March 22, 2022June 21, 2022 Mary Lorscheider Cucurbit Crop & Disease Management

Mary Hausbeck talked about downy mildew during the pickling cucumber session at the 2021 Great Lakes Fruit, Vegetable & Farm Market EXPO.

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CucCAP scientist examines economic impacts of reduced fungicide efficacy against downy mildew

Resistance to fungicides, such as propamocarb hydrochloride (Previcur Flex) and cymoxanil (Curzate), is a concern with cucumber downy mildew, Pseudoperonospora cubensis clade 2. Nevertheless, these fungicides still suppressed downy mildew well enough that yields of marketable-sized fruit of a susceptible slicing cucumber were much better than not spraying. Although the costliest fungicide may be the most effective at managing foliar symptoms of downy mildew, it may not increase profits over spraying a less expensive fungicide.

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USDA National Institute of Food and Agriculture U.S. DEPARTMENT OF AGRICULTURE

Cooperating Institutions:

Boyce Thompson Institute; Cornell University; Michigan State University; North Carolina State University; Clemson University; University of Puerto Rico; University of Wisconsin; University of Florida; University of Georgia; West Virginia State University; U.S. Department of Agriculture, Agricultural Research Service

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