Blog Archives

Soybean Seed Quality Issues Due to Fungal Infections

Although soybean yields have been pretty good this year so far, the seed quality of harvested soybeans has not been great in some fields.  Seed diseases have been prevalent in areas that have received a lot of rain since harvest

Posted in Grains

Difficulties in Diagnosing Diseases of Mature Soybean Plants

After soybean plants have matured in the field, many organisms begin to grow and colonize these plants.  Rainy weather often promotes growth of and colonization by these organisms.  The longer that plants have been sitting in a field after they

Posted in Grains

Spreading of the Brown Marmorated Stink Bug Across West and Central Kentucky: Distribution and Trends

Stink bugs in Kentucky Every year, soybean farmers in Kentucky usually face the attacks of two common stink bugs: the green stink bug (Chinavia hilaris) and the complex of brown stink bugs(Euschistus spp.–i.e., E. variolarius, E. servus), and since 2010

Posted in Grains

Blister Beetles Predatory Behavior Outweigh Their Feeding in Soybeans in Kentucky

Description Blister beetles (Coleoptera: Meloidae) are known for the oily, caustic substance that protects them from predators: cantharidin. Cantharidin is a defensive substance that acts as a deterrent against ants or ground beetles and several species of spiders. In pastures,

Posted in Grains

Practical Pest Preventive Practices for the Pantry

While people hate to find insects in their pantry, managing them should begin long before the pest is found. Pests in the pantry often mean that there are one or more stored food items that have become infested and, left

Posted in Household Pests

Root-knot Nematode in Vegetable Cropping Systems (PPFS-VG-28; CCD-FS-22)

Root-knot nematodes are microscopic plant parasitic roundworms that reside in soil and infect plant roots.  Unmanaged populations can result in significant economic losses for growers due to decreased plant vigor and yield, followed by plant death.  Root-knot nematodes can infect

Posted in Featured Pubs & Videos

Crazy Top of Corn (PPFS-AG-C-12)

Crazy top of corn is a disease that has been observed more frequently in Kentucky due to heavy and intense spring rains. Although some crazy top symptoms are distinct, other symptoms of this disease may not be as familiar and

Posted in Featured Pubs & Videos

What are the Tiny Mud Pots on Hemp Petioles?

The Mud Pots While scouting for caterpillars and budworms in a commercial hemp field in Princeton, KY, we found three pot-shaped mud structures on a hemp petiole (Figure 1). There is a great number of wasp species that build nests

Posted in Hemp

Landscape Sanitation: Clean Up for Clean Plants

Autumn has arrived in Kentucky and, as leaves will soon begin to change color and fall from trees, it is time to focus on landscape sanitation. Good sanitation practices can help reduce disease-causing pathogens.  These organisms can survive for months

Posted in Landscape Trees & Shrubs, Landscapes, Ornamentals

They’re Here: Stink Bug Invasions Have Begun!

Brown marmorated stink bugs have begun their annual trek to get inside of your home. This yearly annoyance is something that parts of the state have been experiencing for a while, but other counties may have just started to deal

Posted in Household Pests

Pests of Fall and Holiday Decorations

Fall and holiday decorations are used to “liven up” the atmosphere at home while we move into the fall months. But this needs to be done thoughtfully so you don’t initiate pest problems in the home. Although live insects may

Posted in Household Pests

Septoria Leaf Spot of Field Hemp (PPFS-AG-H-01)

Septoria leaf spot is the most commonly reported leaf spot disease of field-grown hemp in Kentucky. This fungal leaf disease can rapidly spread throughout fields during periods of extensive rain or high humidity. Under extreme conditions, plants can lose 50%

Posted in Featured Pubs & Videos

Plant Disease Diagnostic Lab Highlights

The following plant disease highlights have been compiled from samples submitted to the University of Kentucky Plant Disease Diagnostic Laboratories from September 1 to September 30, 2021. Diagnostic samples of agronomic crops have included anthracnose leaf blight, gray leaf spot,

Posted in Plant Disease Diagnostic Lab

Apple Scab Picking on Kentucky Apple and Crabapple Trees

Apple scab is the most consistently serious disease of homegrown apple and flowering crabapple in Kentucky. The most noticeable losses on apple result from reduced fruit quality and from premature drop of infected fruit. Scab also causes a general weakening

Posted in Fruit

Boxwood Blight

Boxwood blight can be devastating to American boxwood cultivars, which are common in the Kentucky landscape. Complete defoliation can occur within a week and plants can die within a single growing season. Use of tolerant cultivars, cultural practices, and fungicides

Posted in Landscape Trees & Shrubs