David Buntin, professor of entomology at the UGA-Griffin Campus, sent me an email a while back and I thought I would share.
“With the extended warm weather folks should also be checking for aphid (dueto BYD transmission). If aphids are present or if farmers are going toapply a herbicide to wheat they may consider adding a lambda cyhalothrin insecticide (like Karate Z) or gamma cyhalothrin (Declare) to the tank mix. Other insecticides may reduce the aphids but the cyhalothrin products do abetter job of also suppressing BYD.”
Take time to walk your wheat fields while the wheat is still young and you can count the plants per foot per row. If you find a row that is too thin or too thick flag that row on your drill and correct the seeding rate before you plant next year.
If your wheat is 4 inches (two or more tillers) tall or taller, then you may need to put out your winter weed control. The weeds have really been growing because of the warm weather and can really hurt your yields. Chemical prices are up this year so please don’t cut out application because of the price, it will pay to control the weeds.
Please do not use 2,4-D at this time I think it hurts wheat yield too much and does not control all weeds. Chemicals below are very gentle on wheat and give a much broader window of control.
Ryegrass has been growing also. Look at your fields and use the chemical that best suits your growth stage of wheat and ryegrass. PowerFlex is a good choice.
Harmony Extra TotalSol: Per label always add surfactant per label.
Express Plus MCPA: Per label always add surfactant per label. Gives good to excellent control on most winter weeds.
DO NOT USE THIS ON OATS.
POWERFLEX: Per label gives excellent weed and ryegrass control. Read label for plant back restrictions.
Steve, Lane, Lee, Blake, and Jimmy
** Information obtained from 2012 Georgia Pest Control Handbook and Intensive Wheat Management in Georgia. As always follow label and dispose of empties properly.**
A low area in a field in Plains taken on Monday.
Some of the stems are freeze damaged and will not recover. Other tillers of the same plant will make wheat and this area will suffer some yield loss. This was a small low area and the rest of the field had very little damage.
I have checked oats and wheat from Plains to Donaldsonville and found damage only in the low areas, not in most of the field. It appears damage occurred more from Camilla North. At this time I think we have a very good wheat crop. This will change if we get another cold snap.
The second photo is of Power Flex on large radish. Weeds can and will hurt your yields if not treated.
Thanks to Kevin Alford for the photo.
To make the most of your fields check for winter weeds and please consider using Harmony TotalSol or Power Flex. Wheat and WEEDS will grow a lot in the next week as weather continues to warm .
Please do not use 2-4-D this late in the growing season.
Information obtained from 2011 Georgia Pest Control Handbook and Intensive Wheat Management in Georgia. As always follow label and dispose of empties properly.