Monthly Archives: July 2016

Black Shank of Tobacco More Common In 2016

While 2015 was a light to moderate year for black shank of tobacco, 2016 is proving to be much more challenging. Black shank can be the most yield-limiting disease of tobacco, and once a field is infested with the pathogen,

Posted in Tobacco

Spider Mites Attacking Tomatoes this Summer

There have been a number of recent reports of two-spotted spider mites on tomatoes, both in high tunnel and field production.  Spider mites are favored by hot dry weather, and we have had several periods fitting this description since mid-April.

Posted in Vegetables

Yellow-striped Armyworm Attacking Vegetables

One pest that is becoming more common is the yellow-striped armyworm. This pest has a wide host range and will feed on tomato, pepper, cole crops, and leafy vegetables. It is not specifically listed in the Vegetable Production Guide for

Posted in Vegetables

Cicada Killer Wasps

Cicada killer wasps are active across Kentucky during July and August.  Females are intent on their tasks of: 1) digging underground burrows and 2) provisioning them with the paralyzed cicadas that will be food for their grub-like larvae. These insects

Posted in Lawn & Turf

Foreign Grain Beetles May Appear In Mass Inside

Huge emergences of the foreign grain beetle can occur in homes and buildings in late summer. This 1/16-inch long reddish-brown beetle (Figure 1) is a fungus feeder. Moldy, out-of-condition grain or grain products are traditional sources. However, structural infestations develop in

Posted in Household Pests

Late Summer Cattle Fly Check Can Catch Control Breakdown

Horn fly and face fly numbers will continue to build for a few weeks, which will put pressure on control programs. It is a good time to evaluate the pasture fly situation in your herd; check during the early afternoon

Posted in Livestock Pests

End of Endosulfan Phaseout/Cancellation

The Environmental Protection Agency (EPA) and endosulfan registrants have been phasing out uses of this insecticide for several years. July 31, 2016 – this Sunday – is the end of the phaseout period, which started in 2012. This product cancellation

Posted in Pesticide Topics

Featured Publication

An IPM Scouting Guide for Common Problems of High Tunnel and Greenhouse Vegetable Crops in Kentucky (ID-235) Scouting and monitoring crops to determine potential problems before they result in serious economic loss is key to the Integrated Pest Management (IPM)

Posted in Featured Pubs & Videos

Plant Disease Diagnostic Lab Highlights

The following plant disease highlights from the University of Kentucky Plant Disease Diagnostic Laboratories represent recent sample submissions from field crops, fruit, vegetables, and ornamentals. Diseases and other problems diagnosed on agronomic crops during the past week have included gray

Posted in Plant Disease Diagnostic Lab

2016 Insect Trap Counts

Trap counts for major insect pests are provided by the Kentucky IPM Program. Traps are located at the UK Research and Education Center in western Kentucky and the UK Spindletop Farm in Lexington.  Below are trap counts for the current

Posted in Insect Trap Counts

Soybean Disease Considerations

The continued frequent rainfalls and high relative humidity we have been experiencing have led to conditions favorable for the development of foliar diseases of soybean.  Some diseases to look for are listed below. Septoria Brown Spot Probably the most commonly

Posted in Grains

Update on Southern Rust of Corn

Southern rust was observed in the University of Kentucky Hybrid Corn Performance Test in Webster County, KY on July 18, 2016.  The disease was observed by the keen eyes of UK Plant Pathology interns, Andrew Gennett and Conner Raymond, and

Posted in Grains

Caterpillars May Affect Late Corn Planting In Different Areas of Kentucky In 2016

Insect Description & Damage In Clinton and Todd counties, damage to corn and sweet sorghum has been reported to Drs. Lee Townsend and Ric Bessin since mid-June; and I have noticed injuries on corn foliage in Princeton during the last

Posted in Grains

The Sugarcane Aphid Arrived to Kentucky a Month Earlier in 2016 Than in 2015  

The invasive sugarcane aphid (SCA) Melanaphis sacchari has arrived to Kentucky almost a month ahead of its 2015 appearance (KPN).  Sugarcane aphids have caused yield losses of 30% to 100% for sorghum growers since 2013 in many states of the

Posted in Grains

Take Aim at Tobacco Target Spot & Frogeye Now

In our research plots and in grower fields, we are beginning to see target spot and frogeye pressure. Target spot is caused by Thanatephorus cucumeris (more commonly known as Rhizoctonia solani) and frogeye is caused by Cercospora nicotianae. These are

Posted in Tobacco