2015: The Spring of Pythium!

Here in my first Kentucky springtime, Pythium diseases top my list of frequently-sighted problems in both vegetable and tobacco systems. Pythium can cause pre- and post-emergent damping-off and root rots on larger plants. What to Look For With pre-emergent damping-off,

Posted in Tobacco, Vegetables

Whiteflies in High Tunnels

High tunnel insect management can be challenging, and whiteflies (Figure 1) on tomatoes and other vegetable crops can be one of the more common challenges. While there are several species of whiteflies that we routinely find in high tunnels, silverleaf

Posted in Greenhouses/High Tunnels, Vegetables

First Spotted Wing Drosophila Sampling of 2015

The first sample of the year from a pre-harvest strawberry planting was negative for spotted wing drosophila (SWD). To date, we haven’t seen SWD in strawberries in Kentucky, but we have only 2 seasons of experience with SWD in our

Posted in Fruit

Spruce Spider Mite Injury Appearing

Spruce spider mites (SSM), like other plant-feeding mites, use piercing sucking mouthparts to feed on sap. Feeding from individual cells initially produces small, yellow splotches on needles. Over time, the needles take on a dull, rusty appearance and some may

Posted in Landscape Trees & Shrubs

Red Velvet Mites

The large size and vivid color of red velvet mites (Figure 1) make them hard to overlook as they crawl across sidewalks, driveways, or soil. The red color of these mites is sometimes mistaken for blood and people fear that

Posted in General Pests

Tick Season Is Here

Ticks in Kentucky Ticks can make outdoor activities very uncomfortable in Kentucky, as well as posing a potential public health threat (see the previous article on ticks posted to KPN on April 7, 2015).  Tick season extends from mid-March through

Posted in Pests of Humans

Plant Disease Diagnostic Lab Highlights

The following plant disease highlights from the UK Plant Disease Diagnostic Laboratories represent recent sample submissions from field crops, fruit, vegetables, and ornamentals. Recent agronomic samples have included bacterial spot on alfalfa; and Pythium root rot on tobacco transplants. On

Posted in Diagnostic Lab Highlights
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