This Week: July 15, 2003:
see below
This Week:
Hail damage and Anthracnose on Pumpkins
See Below:
The recent spell of warm and rainy weather during the first 10 days of July has led to an outbreak of anthracnose in some pumpkins and other vine crops. Growers should check their fields soon and begin a fungicide application program shortly if they have not already done so. Consult page 213 of the 2003 OH Vegetable Production Guide for recommended materials. The online edition is available from the VegNet homepage.
Photos by Andy Wyenandt, Plant Pathology
|
 |
Hail damage on a pumpkin leaf |
 |
Top side of leaf showing anthracnose lesions |
 |
Upper surface with more anthracnose lesons plus holes in the leaf caused by hail. |
 |
Close-up view of anthracnose lesions on the underside of the pumpkin leaf. |
 |
Another close-up view of anthracnose lesions on the underside of the pumpkin leaf. Notice how the lesion attacks the main vein of the leaf and collapses it. This will lead to necrotic areas on the leaf. |
Previously....
From June 9, 1999, Impatiens Necrotic Spot on Pepper Transplants
From: July 15, 1998, Phytophthora Blight on Tomatoes
From: July 8, 1998. Angular Leaf Spot on Pumpkin,
Buckeye Rot on Tomatoes (Phytophthora spp., including P. capsici),
Phytophthora Blight of Cucurbits
From June 25, 1998: Timber Rot on Tomatoes plus Hail Damage on Tomatoes and Sweet Corn.