Rust, Stem, Stripe , or Leaf. Do you have it?

Most new southern varieties are Rust resistant.

Now we have that out of the way – what is in your field?

Compare the wheat you planted against the UGA 2014 wheat chart. This resource will help you in determining what could be in your wheat.

Rust. Please check using a white cloth to see if you can rub off any spores. The colors to look for are red/brown, yellow, orange, or any combination. (See LSU chart below.) Wait two days after a rain to do this as rain will wash off the spores. Rust is very aggressive when the temperatures are right and must be controlled quickly. Do not allow many days to pass before you check your fields. Call me if you find Rust on a AGS variety. 

Stripe Rust, LSU

Stripe Rust, vis LSU

Powdery Mildew and BYD (Barley Yellow Dwarf). Look for white to gray powdery fungal growth on leaves and leaf sheaths. Tip yellowing, purple leaves, and/or twisting of leaves are symptoms of BYD, which is a virus, and fungicides will not control it. You must put something out to control aphids before you get the virus. See LSU info on BYD below.

BYD (Barley Yellow Dwarf, LSU)

BYD (Barley Yellow Dwarf)

Cold/Frost Damage. You could just have cold/frost damaged wheat. The conditions have been right cold-frost damage, and some early planted field have it.  Yellowing, streaking, tip burn,  and purple tips are caused by frost/cold damage.

Manganese Deficiency. Manganese is another problem in fields with HIGH Ph. The photo is of a confirmed manganese deficient field.

Manganese Deficient field.

Manganese Deficient field.

I generally find the flag leaf to be the one of the things I want to protect, along with the wheat head. Leaf Blotch, Fusarium, and Glume Blotch must be controlled to have good wheat yields. Fungicides do not trans-locate well and need to be on the surface they are to protect. Please wait as long as possible or if you must spray early then plan to spray twice.

Tissue test your flag leaf. Do not get the largest tiller in each plant, as it will get the first choice of N and give you a skewed reading. I prefer to ample from one of the smaller tillers because that is where your yield will be increased. These smaller /later tillers will dry-up if you do not have proper fertilization.

Good Growing!

*Information obtained from 2015 Georgia Pest Control Handbook (http//www.caes.uga.edu/publications) , Intensive Wheat Management in Georgia, and LSU. As always, follow label and dispose of empties properly.

Wheat Update

Wheat harvest has started and yields in some fields will be over 80 bushels per acre, others will be below 35. Freeze damage can be found in all fields of early and early mid maturing wheat. I have found damage as high as 15% in some fields that headed early. The true mid maturing wheat that got enough cool hours to make heads missed most of the freeze because the head was not as susceptible when the 28 degree nights came.  Freeze damage can be seen in the amount of bacterial Black Chaff found on the heads. If the head is curved and has black margins on the bran then this could be the result of freeze damage and Black Chaff. Low test weight and shriveled kernels will be found in those heads, yields will be impacted. Last year the freeze damage was to the stems and the wheat lodged very badly.  This year it is the wheat head that has the most damage.

Kudzu Bugs, and stink bugs are in all wheat fields.  Looks as if we are in for a bad year on insects a warm January really allowed the insects to survive. 

Good Growing!

*Follow label on all Pesticides, rinse and dispose of empties properly. Info Georgia Pest Management Handbook 2013 

Wheat Update: freeze damage

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.

Good Growing!

Information obtained from 2011 Georgia Pest Control Handbook and Intensive Wheat Management in Georgia.  As always follow label and dispose of empties properly.