Blog Archives

Mesotunnel Research through the Current Cucurbit Podcast Series

Iowa State University, Cornell University, and the University of Kentucky have been conducting studies to improve the resilience of cucurbit crops to attack by insect, weeds, and diseases for both organic and conventional production. Part of this research has led

Posted in Vegetables

The Other Common Late-Season Armyworm in Kentucky

While late summer and fall has been dominated by the fall armyworm, we still have to deal with another armyworm on several crops. Yellow-striped armyworm is a common pest of many vegetable crops in Kentucky including greens, tomatoes, peppers, beans,

Posted in Vegetables

Harlequin Bugs Emerging

We have recently received multiple inquires with photos of odd looking insect eggs or nymphs just newly emerged from said eggs. Each of these have been pictures of the harlequin bug, a cousin to stink bugs that can be a

Posted in Vegetables

Cucurbit Powdery Mildew

Powdery mildew is a common disease of all cucurbits, such as cucumbers, squashes, pumpkins, and watermelons. This disease can occur in greenhouses, high tunnels, commercial fields, and home gardens. Cultural management practices can reduce losses from this disease.   Cucurbit

Posted in Vegetables

Cucurbit Downy Mildew

Cucurbit downy mildew is the most economically important disease of cucurbits in Kentucky. All cucurbits, such as cucumber, cantaloupe, summer and winter squashes, pumpkin, and watermelon are susceptible. Cucurbit downy mildew affects plant leaves, and severe infections can result in

Posted in Vegetables

Cucurbit Downy Mildew Confirmed in Kentucky

On July 27, 2021 cucurbit downy mildew was confirmed on cucumber in south-central Kentucky. Cucurbit downy mildew was reported in Knoxville, Tennessee last week and across the eastern and northeastern U.S.  Disease is likely widespread across the area. Hosts &

Posted in Vegetables

Cucurbit Mesotunnel Research Blog

We have been researching improved conventional and organic control strategies for cucurbit pests and diseases for more than 10 years to develop a practical system that producers can use effectively and dependably. This work have been conducted at the UK

Posted in Vegetables

Predicting Future Cucurbit Crop Disease Risk Using Disease History

Past disease presence can indicate a risk for the same disease this year. Many pathogens overwinter on infected plant material or as pathogen survival structures. Poor sanitation practices can lead to an increased risk of these diseases in the upcoming

Posted in Vegetables

Predicting Future Solanaceous Crop Disease Risk Using Disease History

Past disease presence can indicate a risk for the same disease this year. Many pathogens overwinter on infected plant material or as pathogen survival structures. Poor sanitation practices can lead to an increased risk of these diseases in the upcoming

Posted in Vegetables

Planning a Vegetable Garden

As spring approaches, it is time to start planning for this year’s vegetable garden. There are many items to consider when planning a garden, including decisions that can directly impact the potential for disease. Here are few areas to consider

Posted in Vegetables

Recommendations for Starting Disease-Free Vegetable Transplants

Many home gardeners and commercial growers have placed their seed orders or have last year’s saved seed safely tucked away. In the coming days or weeks, many growers will start those seeds in transplant trays. However, in some cases, seeds

Posted in Vegetables

Squash Vine Borer: The Hidden Pest

With most insect pests of vegetables, UK Extension Entomology recommends weekly scouting to determine the levels of infestation and to decide if an insecticide is warranted. Scouting will tell when the earliest stages arrive and at what levels. However, this

Posted in Vegetables

Cucurbit Downy Mildew Has Arrived in Kentucky

Late in the day on July 31, cucurbit downy mildew was found on cucumber in south-central Kentucky. Microscopy was used to confirm presence of the pathogen, by identifying its dark sporulation on the leaf surface (Figure 1) and oval, dark

Posted in Vegetables

Cucurbit Downy Mildew Creeping Closer to Kentucky

Cucurbit downy mildew was confirmed on winter squash in central Tennessee on July 24, so all Kentucky cucurbit growers should be on alert for this disease in their crops. Symptoms are shown in Figures 1 and 2, on cucumber and

Posted in Vegetables

Vegetable Diseases to Scout for: Anthracnose of Cucurbits

With cucurbit crop canopies beginning to close within planting beds, cucumber, cantaloupe, and watermelon growers in Kentucky should be scouting for anthracnose in their plantings. Prevention, early identification, and management will help reduce plant losses. Cause & Disease Development Anthracnose

Posted in Vegetables