Showing posts with label grey leaf spot. Show all posts
Showing posts with label grey leaf spot. Show all posts

Thursday, July 30, 2026

Research Update (August 3, 2026)

 

Research Update (August 3, 2026)

 

Diligence Technologies Inc., West Tennessee

UPCOMING EVENTS:

SWSS Weed Contest, Knoxville, TN (August 5-6, 2026) 

UT Cotton Tour, Jackson, TN (September, TBD)

 

CROPPING SEASONS:

Foliar fungicide applications in corn and soybeans are largely done with a few exceptions for later-planted trials or those with later application timings.  Disease pressure is off to a good start, but the weather going forward will likely have a greater influence on disease development than the rains we have received so far.

Our weed trials are in many different stages ranging from completed to just initiated.  All our crops for insect trials are established and we are monitoring some of these to determine the proper application timing.

 

UPCOMING TRIAL REMINDERS:

WINTER WHEAT

Wheat planting in west Tennessee normally runs from about October 15 to November 10.  We need to start working on any trials that focus on the fall (i.e. any trials that have treatments at planting or before winter dormancy).  We can wait a bit later on trials that have treatments targeted at next spring.  We typically have extra wheat to work with and spring trials can be established at that time.

Please let us know soon about any wheat fertility trials you might be considering so that we can match the location and maintenance program to your needs.

 

WEATHER INFO:

We finally managed to get all our current field trials underway.  June and the first half of July presented a challenge with frequent showers that often made planting and spraying difficult.  However, I continue to hold to the belief that too much rain is better than too little.  With too much rain, progress is slow.  With too little rain, progress is stopped.  And if most every August is any indication, we will be asking for rain again soon.

 

PEST INFO:

We have had no shortage of weeds this season.  In fact, one of our biggest challenges has been cleaning up fields in order to get other types of trials established.  The frequent rains made the weeds grow fast and made it difficult for us to get in the fields and clean them up.

Our major diseases (gray leaf spot in corn, frogeye leaf spot in soybean) have progressed well to date.  However, it is generally August before these diseases really come and on and we start to see which treatments are working.

We may be spraying cotton plant bugs before long.  At present, we are just waiting for “research grade” populations to build.  Insecticide applications to corn and soybean will be made later in the season.  It is generally beneficial to plant those trials late which tends to result in higher pest populations.

 

If you need a late trial this summer, let us know.  We can usually find a spot to run another trial or two.

Tim, Jackson, Jake, Will, Jim, & JT

 

Proverbs 12:24

The hand of the diligent shall bear rule, but the slothful shall be put to forced labor.


Monday, October 7, 2019

Research Update (October 7, 2019)



Research Update (October 7, 2019)

Diligence Technologies Inc., West Tennessee

CROPPING SEASONS:

For the first time this season, we have had a real dry spell.  The past few weeks have been unusually warm for September and rainfall has been hard to come by.  Corn was pretty much done before the dry weather hit, so I do not believe we will see much impact there.  However, it has made cotton move along a bit faster than anticipated and we are well into defoliation at this point.  Our biggest concern has been our soybean disease plots.  Due to replanting, our soybeans are later than normal and the dry weather has not helped the development of frogeye leaf spot.  We did get some relief from the dry weather in Jackson, but let’s hope it was not too late.


GREENHOUSE ACTIVITIES:

With all the warm weather, it is hard to convince ourselves that we need to be getting the greenhouse ready for winter.  However, we have braved the heat and have things in pretty good shape for another season.  We will be running trials in October, so let us know if you have any projects in the works.
 

WEATHER INFO:

A hot, dry September has been the latest weather challenge this season.  Frequent rains slowed trial establishment early in the year, but those same rains have produced some nice trials so we really do not have much to grip about.  If the fall continues to be warm and dry, I would anticipate an earlier harvest season than last year (when it started raining and would not stop).


 PEST INFO:

Weed pressure has been excellent for the most part this season as the rain showers have resulted in constant flushes of new weeds.  We, of course, are probably the only ones happy about that.

Insect pressure has been variable depending on the species.  We had some excellent fall armyworm pressure in our late-planted corn. Plant bug pressure in cotton has been moderate but steady.  Not the outstanding populations that are seen at times, but enough to get some work done.  Soybeans have had plenty of insects except stinkbugs.  However, the stinkbug populations have picked up in our latest soybeans and I think those trials will be fine.

Gray leaf spot in corn was very good this year.  It did start a bit later in the season, but the pressure was more than adequate for fungicide evaluations.  The jury is still out on frogeye leaf spot in soybeans.  Pressure has been lighter than normal and slow to develop.  The degree of separation we will see in yields is still up in the air.

 
Hope all is well with our friends as they finish off the 2019 cropping season.  Let us know what you need in the way of wheat trials and greenhouse work as those are next on our list.
 

PROVERBS 27:23-24

Be thou diligent to know the state of thy flocks, and look well to thy herds; for riches are not forever.

 

Saturday, July 15, 2017

Research Update (July 15, 2017)



Diligence Technologies Inc., West Tennessee

EVENTS FROM THE PAST MONTH:

We have spent a good portion of the past couple of months trying to catch up on trial establishment.  Frequent showers meant that we had few full weeks to get things done, so we have been working where and when we can.  As a result, trial establishment was farther behind than in any year in recent memory.  Several trials had to replanted due to excessive moisture with a few even requiring three or four attempts before we finally got a good stand.  As always, the crew (Jesse, Kevin, and Jackson) did a heroic job of making sure everything got done.
 

CROPPING SEASONS:

Wheat is almost over for this season.  We are finishing up post-harvest data collection (seed weights, etc.) at present.  Disease pressure was pretty good in the fungicide trials and you could see the benefits of a well-timed foliar application.

We have corn trials at almost every imaginable growth stage.  Planting dates on yielded trials range anywhere from mid-April to mid-May.  Our later trials (generally fungicide trials planted intentionally late to increase disease pressure) are just beginning to enter the reproductive phase and corn fungicide applications will begin in mass next week.

Applications will also begin soon in soybean fungicide trials.  Applications at R1 will likely be next week with R3 applications a couple of weeks later.

Cotton trials began the year very slowly.  With excessive moisture and reduced amounts of heat and sunshine, the cotton struggled to get a good start.  Stands were sometimes thin and the crop in general was less than impressive.  The good news is that growth has improved substantially with the increased heat and sunshine over the past month.  It is finally time to break out the growth regulator and try to slow things down just a bit.

 
GREENHOUSE ACTIVITIES:

The greenhouse is officially closed for the summer which is a good thing.  The greenhouse is heated which makes it a great place to work during the winter.  However, the cooling fans can only do so much in summer and it is difficult to find volunteers to go in there in July.

Keep us in mind for your greenhouse needs later this fall.  We should have it back in operation in October.


TOURS:

Thanks to everyone who has stopped by for a visit so far this spring.  However, with trial establishment slower than normal, much of the prime viewing time for plots is still to come.  Several tours have been rescheduled for a little later in the season.  As always, just let us know when you will be in the area.  We always enjoy getting to spend time with friends.


PEST INFO:

Preemergence weed control has been generally good this spring as frequent showers allowed for herbicide activation in the soil.  Postemergence herbicide injury has been above normal as crops had little opportunity to “harden off” during the early spring.  Even our normal maintenance applications tended to show burn on the foliage.  Probably not a significant issue, but it does not help make the plots look good.

Disease activity is still pretty low right now in the fungicide trials.  It usually takes a while for grey leaf spot in corn and frogeye leaf spot in soybeans to build and the crops are still relatively young.  For those wanting to look at fungicide trials, late August has traditionally been a good time for viewing.

Insect pressure has been fairly light this year with the exception of thrips on cotton.  However, we generally have some excellent opportunities to test insecticides on late-planted soybeans.  Let us know if you need a late bug trial and we will work something out.

 
We are very thankful to those who have sent trials our way so far this season.  We still have some ground available for an evaluation late this summer or early fall.  I tell folks all the time that it is a rare September that we do not plant a few corn or soybean trials.  Just let us know how we can be of service.


Proverbs 12:27
… the substance of the diligent man is precious.

 


Thursday, December 12, 2013

Research Update (December 12, 2013)


Diligence Technologies, Inc., West Tennessee

One more season is almost in the books.  With a few exceptions (such as the wheat, follow-crop, and weed control trials we have scheduled to run through the winter), all the trials are out of the field and the reports have been sent to their rightful owners.

In general, 2013 was wet, cool, and late.  Planting was delayed in many cases (we almost seem to have lost the month of May) due to frequent rains.  Much of the cotton that we did manage to plant had to be replanted (sometimes more than once).  The summer was generally mild (which was good for the corn, soybeans, and researchers), but the cotton could have used a few more heat units to push it along (particularly the later planted cotton).  Corn, soybeans, and early-planted cotton (that lived) all yielded very well.  Our biggest issues at the end of the season were getting the beans to dry down and getting the late-planted cotton open and defoliated before frost.  Quite a change from 2012 when the finished the season about a month and a half earlier.

We have put our wheat to bed for the winter and don't anticipate much activity there until early spring.  As usual, we have planted extra wheat for those fungicide trials we don't know about yet.  Let us know if you have some of those in hand.  We have also started marking out areas for early burndown trials next spring so let us know if we need to save you a nice, weedy spot.

Weed pressure this past season was dominated by resistant pigweeds (no big surprise there).  While we had plenty of moisture to activate herbicides, the frequent rains shortened the residual of our soil products substantially.  Insect pressure from some of our more consistent pests (stink bugs, plant bugs, soybean loopers) was pretty light this season.  The pests were there, but the populations did not build as I have seen them in some years.  The one big exception was thrip pressure in cotton.  We had more early thrips this past season than I can ever remember.  One new arrival this year was kudzu bug.  We had the "honor" of making the first "official" find of kudzu bugs in Shelby county this past season.  While the kudzu bug populations were pretty light this year, I am told by other researchers that we should have plenty to test on next year.  Disease pressure was fairly typical.  Both corn and soybean diseases were a bit late this year (you would think they would have come sooner with all the rain), but we had plenty of pressure in the end to get some good ratings.

Meeting season is just around the corner.  Our January calendar looks like this:

Beltwide Cotton Conference (Jan. 6-8, New Orleans, LA)
Conservation Systems Cotton and Rice Conference (Jan. 15-16, Tunica, MS)
Southern Weed Science Society (Jan. 27-29, Birmingham, AL)
National Association of Independent Crop Consultants (Jan. 29-Feb.1, New Orleans, LA)

Please let us know if you plan to make any of these meetings.  I would love to have the chance to catch up with our old friends.

Allow me to take this opportunity to thank those of you that let us be a part of your research program this past season.  We were truly blessed.

Proverbs 10:4
He becometh poor that dealeth with a slack hand, but the hand of the diligent maketh rich.



Saturday, August 10, 2013

Research Update (August 10, 2013)


Diligence Technologies Inc., West Tennessee

Overall, the weather continues to be wet and cool for early August.  While that sure makes life easier for those doing research, we could probably use a bit more heat to move our cotton crop along.  Considering that we were late in getting the cotton crop planted and the slow progress we have seen since then, this would not be the year for an early frost.  On the positive side, the corn and soybean plots are in great shape with plenty of moisture since planting.

Grey leaf spot pressure in corn continues to intensify and we should be able to get some excellent ratings in the coming weeks.  While we have had some "low level" frogeye leaf spot pressure for a while, the disease has really taken off over the past week and we appear to be in good shape for soybean fungicide evaluations.

Since the frequent rains this spring and summer have significantly reduced the residual of our soil-applied herbicides, hoeing pigweeds has become a frequent pastime this season.  I can assure you the crew will be happy to get that part of the season behind them.

We have had a lot of visitors over the last couple of weeks including MANA, Valent, Brandt, the University of Tennessee, SePro, FMC, Americot, and Syngenta.  Some days we feel like we are running a guide service, but I will admit that it gives me the chance to catch up with a lot of friends that I don't get see often enough.

This past week was the last one for Zac Carpenter.  Zac is an agronomy student at Mississippi State University and has helped us out over the past three summers.  While we are sad to see him done for the summer, we wish him the best in his studies.  I guess Jeff, Jesse, and Kevin will have to pick up the slack.

Cotton defoliation season is closer than it seems, so let us know if you have defoliation protocols that need a home.

Proverbs 12:27
… the substance of the diligent man is precious.


Saturday, July 20, 2013

Research Update (July 20, 2013)


Diligence Technologies, Inc., West Tennessee

There has been plenty going on in our part of the world over the past week or so.  Peter Eure, a graduate student from the University of Georgia, spent the past week with us as part of the SWSS program which provides the opportunity for students to spend time visiting researchers to see how things are done in other places.  Now that Pete knows all our secrets, we are fairly sure that research efficiency in south Georgia will drop by at least 50%.  However, we really enjoyed his visit and welcome him back any time.

This past Thursday (July 18) was the date for the Agricenter International Field Day.  As always, Bruce Kirksey and his crew did an excellent job.  Thanks to FMC, Americot, and Valent for allowing Diligence Technologies to assist in setting up their tour stops.

We also enjoyed visits from MANA and Cotton Incorporated this week.  Always good to catch up with old friends.

With everything going on, it might be surprising that we have actually done a little plot work over the past couple of weeks.  All the VT/R1 corn fungicide applications have been made at the Jackson location.  Grey leaf spot is already present on the lower leaves and working its way up the stalk.  We expect to start getting some decent ear leaf ratings in the next week or two.

Also, the R1/R2 fungicide applications in soybeans have been made.  Frogeye leaf spot is still pretty light at this point, but in most years things start to pick up in late July and early August.

We continue to be blessed with the occasional rain shower.  We got 1.8 inches in Memphis late last Thursday which means we probably will not have to stretch poly-pipe next week.  The Jackson location missed that one, but has had enough showers through the summer that the crops are still in good shape.

Hope your summer is going well and drop by to see us when you get the chance.

Proverbs 10:4
He becometh poor that dealeth with a slack hand, but the hand of the diligent maketh rich.