Boxwood Blight – Devastating Disease Reported in Kentucky

Boxwood blight (caused by the fungus Cylindrocladium buxicola) was confirmed in October 2014.  Plants submitted to the UK Plant Disease Diagnostic Laboratory were collected from a residential landscape in Fayette County.  Homeowners suspect that infected plants were transported from a

Posted in Landscape Trees & Shrubs

Potential New Host for Emerald Ash Borer Studied and Confirmed

On October 14, 2014, the USDA Systematic Entomology Laboratory (SEL) at the Smithsonian confirmed the partial adult and larval specimens recovered from a white fringetree (Chionanthus virginicus) as emerald ash borer (EAB) (Agrilus planipennis Fairmaire). EAB larvae and a partial

Posted in Landscape Trees & Shrubs, Shade & Forest Trees

Lady Beetles Making House Calls

Lady beetles are widely recognized as beneficial insects. In the fall, they congregate to spend the cold winter months in sheltered sites: rock piles, tree holes, etc. However, the multicolored Asian lady beetle has a nuisance side. It is attracted

Posted in Household Pests

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 during October. Diagnostic samples of agronomic crops included summer black stem and anthracnose on alfalfa; gray leaf

Posted in Diagnostic Lab Highlights

Fall Armyworm Moth Captures Are Rebounding

Capture of fall armyworm moths (FAW) in the UK IPM traps at the UK Research and Education Center (UKREC) in Princeton, KY have increased for the last 2 weeks. These captures are not as great as those from the known

Posted in Grains

Twig Girdlers

Twig girdlers are species of longhorned beetles that have a very distinctive approach to laying their eggs. The female selects a twig that is about the diameter of a fat pencil, and then chews a deep, narrow groove around it.

Posted in Landscape Trees & Shrubs, Shade & Forest Trees

Sanitation Is a Key to Dealing with the Iris Borer

Iris borers spend the winter as eggs deposited on plant debris near or around the base of infested plants. Remove and destroy old foliage and plant residue now to eliminate an important source of problems with this destructive insect next

Posted in Ornamentals
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