Tuesday, August 26, 2014

Poor or No Soybean Nodules in Many Fields

Chad Lee, Extension Agronomist, University of Kentucky

A field with soybeans with nodules
and soybeans without nodules. 
Several soybeans have turned yellow in the past few weeks and further examination revealed little to no nodules. The problem has occurred with seed inoculated in the bag and seed inoculated at the farm. It has even occurred in cases where a 2x rate was applied at the farm. Several brands of inoculant have been indicated. It has occurred in fields all across the state. The problem has occurred in full season soybeans and in double-crop soybeans.

May Not Be A Problem, But Trapping Large Numbers of Stink bugs!

Doug Johnson, Extension Entomologist, University of Kentucky

Certainly this is the time to be checking your soybeans for the presence of stink bugs. I have not noticed economically important problems in the beans I have sampled, but stink bugs are certainly common and our light traps have been capturing very large numbers compared to previous years.

Tuesday, August 19, 2014

Shelling Corn Early? Watch That Moisture!

Doug Johnson, Extension Entomologist, University of Kentucky.

Lack of rainfall has put many corn producers in a bind, forcing them to begin harvest before the normal time. Early storage results in more days of warm, moist air before we reach the relative secure air temperatures of 50o F or below. This early harvest is compounded because the kernels are often still at very high moisture levels. Early binning corn with 15% moisture or greater is a real gamble.

Tuesday, August 5, 2014

Watch for Mites in this Dry Weather!

Doug Johnson Extension Entomologist, University of Kentucky

At least one soybean field in the Jackson Purchase area has suffered from mite damage. The weather that we are now experiencing is what I would expect for mites to become a problem. There is no guarantee that mites will be a problem in any particular field, but dry (low humidity) weather and drought stressed plants increase the probability of a problem occurring.If you are in an area that has had sufficient rainfall you can probably ignore this warning.

Friday, August 1, 2014

Field Day and Workshop for Herbicide Resistant Weeds in Kentucky

University of Kentucky Extension Weed Specialists are hosting a a Herbicide Resistant Weeds Workshop and Field Day on August 6, 2014 from 8:30 am to noon (eastern) at the University of Kentucky Research Farm in Woodford County. The plots and field is located at the corner of US 60 and US 62.

Participants will view field research plots on Marestail (Horseweed) control. The workshop will include discussions on Palmer Amaranth as well as other herbicide resistant weed species.

Pesticide Education Credits: 2 General & 1 Specific
CCA Credits: 3 Pest Management

For more details contact:

J.D. Green jdgreen@uky.edu or James R. Martin james.martin@uky.edu

CCA Credits: 3 Pest Management

Sunday, July 27, 2014

Big Jump in Fall Armyworm Moth Capture

Doug Johnson, Extension Entomologist, University of Kentucky

The trap week of July 17-24 showed a large increase in fall armyworm (FAW) moths captured in the western UK-IPM traps. The capture increasing from virtually none to 155/trap-week, is a pretty major change and worth noting.

Friday, July 25, 2014

Check for Brown Marmorated Stink Bugs in your soybeans.

Doug Johnson, Extension Entomologist, University of Kentucky

I have received reports that appear to indicate an increase in brown marmorated stink bug (BMSB) activity in central Kentucky. This invasive bug which has a wide host range has been in Kentucky for about five years, but as yet has not become of economic importance in grain crops. This is likely to change at some time, and it is best to not get caught unawares!