Weekly field updates from Clemson Extension:
In the coastal region, the Fall crops including melon are being planted.
In the Midlands, Squash is coming to market with good quality.
In the Pee Dee region, Yellow squash, zucchini, and cucumbers had slowed a bit but seem to be picking back up.
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Cucurbit Downy Mildew updates August 14, 2023 | ipmPIPE
📢New reports of Cucurbit Downy Mildew on cucumber🥒, butternut, and pumpkins🎃 in Massachusetts, Pennsylvania, North Carolina, Michigan, Maryland, New York, Tennessee, and Alabama📢 from July 28 to August 9, 2023.
Michigan Cucurbit update | August 9, 2023
Good yields of yellow and green processing zucchini were being harvested in west central Michigan.
Watermelon harvest continues in the state.
Cucurbit downy mildew has been confirmed in eight counties to date.
Clade-2 Downy mildew spores were captured in Michigan.
Downy Mildew on Pumpkins in Ohio
Clade 1 of the downy mildew pathogen has a broad host range among cucurbits, preferring pumpkins, squash and watermelons. Clade 2 isolates infect and cause damage to cucumbers and melons, and are seen in northern Ohio first. As in 2022, the Fulton County outbreak on pumpkins was unusual for the Great Lakes region.
Whitefly populations low across Southeast
Whiteflies can cause feeding injury issues in vegetables and transmit multiple viruses. These include cucurbit leaf crumple virus, cucurbit yellow stunting disorder virus, cucurbit chlorotic yellow virus, squash vein yellowing virus and tomato yellow leaf curl virus. Vegetables like squash, zucchini, cucumber, and cantaloupe are highly susceptible to these viruses.
Michigan Cucurbit update | August 2, 2023
Strategies to control Phytophthora fruit rot and Cucurbit downy mildew has been confirmed in Michigan
Deer beat Powdery & Downy mildew for #1 vegetable pest
The American Vegetable Grower online magazine included wildlife pests for the first time in the 2023 production portion of the annual State of the Vegetable Industry survey. Deer bumped powdery mildew disease, the pest frontrunner in previous years, down the list.
