KY Plant Disease

A number of plant disease resources are now available in Spanish. These include many factsheets for important diseases of specialty crops, as well as common disease management practices. All vegetable scouting guides are also available in Spanish. A complete list of resources in Spanish is available through the Plant Pathology Extension Publication webpage under the heading Publicaciones en Español. https://buff.ly/3ytiuto

Plant Pathology Factsheets Available in Spanish A number of plant disease resources are now available in Spanish. These include many factsheets for important diseases of specialty crops, as well as common disease management practices. All vegeta…

The IPM Scouting Guide publications for vegetable crops are valuable resources for growers. This information can also be easily accessed through the Veggie Scout Website. Be sure to check out this valuable resource!
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Vegetable Scouting Guides Available Online The IPM Scouting Guide publications for vegetable crops are valuable resources for growers. This information can also be easily accessed through the Veggie Scout Website. Be sure to bookmark this w…

Fusarium wilts are common in vegetables. Symptoms develop when the fungus obstructs openings in vascular tissue (xylem), limiting the plant’s ability to move water and nutrients. Infections ultimately result in plant death. Preventative practices and fungicides can reduce damage and limit yield loss. https://buff.ly/b78GZg1

Fusarium Wilt of Vegetables Fusarium wilts are common in vegetables grown in commercial fields, greenhouses, high tunnels, and backyard gardens. Tomato, peppers, eggplant, cucumber, watermelon, and cantaloupe are susceptible …

Cucurbit crops (cucumber, squash, watermelon, cantaloupe) may be affected by gummy stem blight or black rot. Cantaloupe, watermelon, and cucumber are often the most at-risk for disease. Leaves, stems, vines, and fruit may be affected by this fungal disease. Damage to plants and fruit may result in yield loss. Preventative practices and fungicides can help to reduce losses.
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Gummy Stem Blight & Black Rot of Cucurbits Cucurbit crops (cucumber, squash, watermelon, cantaloupe) may be affected by gummy stem blight or black rot. Cantaloupe, watermelon, and cucumber are often the most at-risk for disease. Leaves, ste…

Cucurbit downy mildew affects plant leaves, and severe infections can result in plant death. This pathogen does not overwinter in Kentucky and must be blown northward from overwintering locations further south. Thus, the date of introduction of cucurbit downy mildew varies from year to year. Monitoring disease risk and preventative management are critical to reducing infection and damage. https://kentuckypestnews.wordpress.com/2026/07/21/cucurbit-downy-mildew/?utm_source=KY+Pest+News+List&utm_campaign=74abd7076c-KPN_NEWSLETTER_EMAIL_CAMPAIGN&utm_medium=email&utm_term=0_bee884adb8-74abd7076c-206447969&ct=t(RSS_EMAIL_CAMPAIGN)

Cucurbit Downy Mildew Cucurbit downy mildew is the most economically important disease of cucurbits in Kentucky. All cucurbits, including cucumber, cantaloupe, summer and winter squashes, pumpkin, and watermelon are sus…

Bacterial spot and speck are common diseases of backyard and commercial tomatoes in Kentucky. Both diseases look similar, and differentiating between these diseases can be challenging. Leaves, stems, and fruit may become infected, resulting in reduced fruit quality or yield losses. Preventative practices are critical for disease management to avoid damage and losses. https://buff.ly/hYOukEu

Bacterial Spot & Bacterial Speck on Tomato Bacterial spot and speck are common diseases of backyard and commercial tomatoes in Kentucky. Both diseases look similar, and differentiating between these diseases can be challenging. Leaves, stem…

The University of Kentucky Extension team has put together numerous resources for commercial fruit growers regarding production and pest management. The following details the resources provided by University of Kentucky specialists in entomology, horticulture, and plant pathology.
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While fruit rots have a variety of causes, the most common fungal fruit rot of apple in Kentucky is bitter rot. The disease results in rotten, inedible fruit. Fungicides are available for management; however, sanitation is critical for disease prevention.
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Apple Bitter Rot Season is Upon Us While fruit rots have a variety of causes, the most common fungal fruit rot of apple in Kentucky is bitter rot. The disease results in rotten, inedible fruit. Fungicides are available for managemen…

The fungal disease southern blight affects a wide range of plant species, including h**p. When stems and roots become infected, plants can wilt, decline, and/or die, resulting in yield loss. No fungicides are labeled for southern blight on h**p, so management relies on an intensive cultural program.
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Southern Blight of H**p The fungal disease southern blight affects a wide range of plant species, including h**p. When stems and roots become infected, plants can wilt, decline, and/or die, resulting in yield loss. The so…

Angular leaf spot is a common fungal disease of beans in Kentucky. Leaves, stems, and pods may become infected. A combination of cultural practices and fungicides are critical for disease management to limit damage and yield losses. https://buff.ly/HSpw5w9

Bean Angular Leaf Spot Angular leaf spot is a common fungal disease of beans in Kentucky. Leaves, stems, and pods may become infected. A combination of cultural practices and fungicides are critical for disease managemen…