Powdery Mildew-Biology June 30, 2022 - From Issue: 707 By: Dan Egel Read More Powdery mildew is a common disease of cucurbits in Indiana. This disease is more common on cantaloupe and pumpkin. However, we have observed powdery mildew more frequently on watermelon in[Read More…] Article Categories: Cucurbits Article Tags: Plant Disease Management
Conventional Fungicide Recommendations for Cucurbit Powdery Mildew June 30, 2022 - From Issue: 707 By: Dan Egel The following article was written by a colleague located on Long Island in New York. She is an expert on cucurbit powdery mildew. The fungicides which are effective against cucurbit[Read More…] Article Categories: Cucurbits Article Tags: Plant Disease Management
Tomato Bacterial Diseases — Bacterial Canker June 15, 2022 - From Issue: 706 By: Dan Egel Read More In the Midwest, three major bacterial diseases threaten tomato production. These diseases are bacterial canker, bacterial spot and bacterial speck. Although these diseases are all caused by bacteria, they vary[Read More…] Article Categories: Solanaceous Crops Tomato Article Tags: Plant Disease Management
A Brief Primer on Disease Management of Pumpkin June 2, 2022 - From Issue: 705 By: Dan Egel Read More In the next month, many growers will start to plant pumpkins. This article will introduce aspects of disease management of pumpkins prior to the growing season. The information below is[Read More…] Article Categories: Cucurbits Pumpkins Article Tags: Plant Disease Management
Foliar Diseases of Tomato in Greenhouses May 19, 2022 - From Issues: 704 / 719 By: Dan Egel Read More The author of this article, Dan Egel, retired from Purdue University in February 2024. This article is a brief review of the symptoms of foliar diseases of tomatoes in greenhouses[Read More…] Article Categories: Solanaceous Crops Tomato Article Tags: Plant Disease Management
The Purdue Plant and Pest Diagnostic Lab – Ready to Serve You May 18, 2022 - From Issue: 704 By: Tom Creswell Read More The Purdue University Plant and Pest Diagnostic Laboratory (PPDL) specializes in the identification of plant diseases, insects, and plants, as well as in the diagnosis of plant-health-related problems. The PPDL[Read More…] Article Categories: Vegetable Crops – General Article Tags: Plant Disease Management
Downy Mildew of Spinach May 5, 2022 - From Issue: 703 By: Dan Egel Read More Downy mildew of spinach can be an important disease of spinach. The lesions are often a bright yellow with irregular margins (Figure 1). With time, these lesions can become a[Read More…] Article Categories: Greens and Salad Crops Spinach Article Tags: Plant Disease Management
MELCAST 2022 May 5, 2022 - From Issue: 703 By: Dan Egel Read More MELCAST is a weather-based disease-forecasting program that helps growers schedule foliar fungicide applications for watermelon and cantaloupe. MELCAST stands for MELon disease for CASTer. This program, designed by Dr. Rick Latin, Emeritus Professor of[Read More…] Article Categories: Cantaloupe Melons, Other Watermelon Article Tags: Plant Disease Management
Black Mold of Onions April 21, 2022 - From Issue: 702 By: Dan Egel Read More In November of last year, a grower brought onion samples to my attention. The samples had been stored on a greenhouse bench after harvest. A black mold had developed on[Read More…] Article Categories: Root, Tuber, and Bulb Crops Onions Article Tags: Plant Disease Management
Black rot on Brassica Crops April 6, 2022 - From Issue: 701 By: Dan Egel Read More Cabbage is the crop most often affected by black rot, however, other crucifers such as broccoli, cauliflower, mustard, kohlrabi or brussels sprouts may be affected. The first symptom one is[Read More…] Article Categories: Cole Crops Broccoli Brussels Sprouts Cabbage Cauliflower Kohlrabi Article Tags: Plant Disease Management
