Blog Archives

Corn Earworm Outbreaks in Industrial Hemp in Kentucky: September – 2019

Helicoverpa zea (formerly Heliothis zea) is an insect that affects many crops and is known with different common names, depending on the crop it affects: cotton bollworm, soybean podworm, tomato fruitworm, or corn earworm. The larva of this noctuid moth

Posted in Hemp

Septoria Leaf Spot of Hemp

Hemp (Cannabis sativa) is grown both outdoors and in greenhouses.  Outdoor-grown hemp is susceptible to infection by leaf spot fungi that affect other crops and nearby plants, especially during periods of extensive rain or high humidity.  There are three primary

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Hemp Russet Mite Detected in Several Areas across Kentucky

Problem During the last 2 weeks of July, several hemp samples were received and evaluated by specialists at the University of Kentucky (Lexington and Princeton).  Hemp russet mites (Aculops cannabicola, Acari: Eriophyidae) (Figure 1) were observed on nearly all of

Posted in Hemp

Powdery Mildew of Hemp

Powdery mildew can affect numerous plants, including fruit, vegetable, and agronomic crops, as well as woody and herbaceous ornamentals. Kentucky hemp is also susceptible to this disease. Plants infected early in the season can be seriously damaged, while those affected

Posted in Hemp

Hemp and Pesticides

Two weeks ago, the Kentucky Department of Agriculture (KDA) posted their statement on Kentucky hemp and pesticides here . With this notification, the KDA listed criteria required in order for a pesticide to be available for use on hemp. A

Posted in Hemp, Pesticide Topics

Southern Blight of Hemp

In 2018, there were significant increases in confirmed cases of southern blight in hemp.  The fungal disease affects a wide range of plant species, as well as hemp. When stems and roots become infected, plants can wilt, decline, and/or die,

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Hemp Greenhouse Sanitation: Cleaning Up Today May Keep Disease Away

Diseases are a major concern for greenhouse hemp growers, and they can be a factor that limits the profitable production of plants. The warm, humid greenhouse environment provides optimal conditions for reproduction of many pathogens. A good sanitation program can

Posted in Hemp