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Rice Field Day is set for July 30
July 23, 2013

STONEVILLE -- Rice producers, suppliers and consultants will benefit from an upcoming rice tour at Mississippi State University’s Delta Research and Extension Center.

Registration for the July 30 Rice Field Day begins at 2:30 p.m. in the Charles W. Capps Jr. Entrepreneurial Center.

Andy Morris, North America rice buyer for Mars Inc., will be the keynote speaker at the afternoon event.

Trailers will leave the building at 3:40 p.m. to tour research sites on rice agronomy, breeding, entomology, pathology and weed science.

Event sponsors include the Mississippi Rice Promotion Board, Mississippi Agricultural and Forestry Experiment Station and MSU Extension Service.

For more information, contact Tim Walker, MSU rice agronomist, at (662) 822-2291.


From Mississippi Crop Situation Newsletter #24
Dr. Nathan Buehring
September 11, 2009

Rice harvesting so far this year has been slow, but steady. This is mainly due to the fact that the moisture levels in the rice have been around the 18% plus range. I would estimate that we are around 25% harvested. With the scattered afternoon showers, harvesting has been very minimal this week. High moisture, heavy dews and excessive cloud cover have also affected how much rice can be harvested in a day. The forecast for the next 7 days is not predicted to be favorable for rice harvesting either.

Rice yields so far have been average to above average. The cool and rainy periods in July and August do not appear to severely affected rice yields. I have noticed a lot of blank kernels in this year’s rice, but yields appear to holding good. We still have a lot of rice to harvest and we are still draining later planted rice. Hopefully, yields will hold up through the harvest season, but there is still a lot in field.


Mississippi Crop Situation #21
Dr. Nathan Buehring
August 21, 2009

Weather of recently has been rather mild for August. This once again has slowed the maturity of this year’s rice crop. Some harvesting has begun in the delta. However, there has been very little activity due to the moisture levels are still above 20%. Recent rain at the end of this week has pretty much halted all rice harvesting. On Monday, harvesting will start back up in the hopes of lower moisture levels. The current forecast for the upcoming week calls for sunshine, but below average temperatures. With these temperatures, it may push any substantial harvest off till September.

These weather conditions along with the cool wet weather received at the end of July and first of August has slowed the development of the later planted crop (after May 20th) which garnishes about 25% of this year’s rice acres. Looking at the current DD50 projection, rice that is just now 50% to 100% will not be mature enough to harvest until about the middle of October. This late crop needs sunshine and heat so there are no further delays in maturity will occur.

In walking some the rice that is almost ready to harvest, I have noticed a fair amount of false smut. False smut is generally not a problem for early planted rice. However, the wetter than normal conditions have contributed this to being a problem in the earlier planted rice. Propiconazole containing fungicides (Tilt, Stratego or Quilt) applied at late boot provides the best control. However, if applied correctly it will only provide suppression at best. Even though a grain hopper with orange balls in it does not look good, yield reductions from false smut should be minimal.

Rice stinkbug numbers have rapidly declined for the most part due to the bulk of the rice crop in a heading phase. This has been pretty typical through the years. I would still continue to scout for rice stinkbugs, especially on this later crop. Rice stinkbug numbers may increase as the amount of rice acres heading will decrease over the remainder of the growing season. The threshold for rice stinkbugs is 5 stinkbugs/10 sweeps the first two weeks of heading and 10 stinkbugs/10 sweeps the second two weeks of heading.


Mississippi Crop Situation #18
Dr. Nathan Buehring
July 31, 2009

Conditions over the last couple of weeks have been cool, wet and soggy. The rainfall totals at Stoneville during the last two weeks have been over 6”. Other areas of the Delta have had accumulations over 10”. The average high for this time period has been 88 F and the average low has been 68 F. These conditions have been less than ideal, especially for rice that is pollinating or late planted rice that needs to accumulate heat units. The potential impacts of this wet and cool weather on rice that is pollinating will not been seen until harvest. Historically, our highest yields have been when the average high temperature is in the low 90’s with little to no rain being received between July 15th and August 15th. Hopefully, sunshine will prevail in the upcoming weeks to help this crop move forward.

With the wet and cool conditions, problems with sheath blight have increased. Sheath blight should be continued to be a problem in the coming weeks with below average temperatures and above average moisture. Sheath blight progression can be quiet rapid during these conditions. The chart below gives you the equivalent rates of the premix fungicides. An equivalent rate of Quadris at 6 fl oz/A will give you approximately 14 days worth of protection against sheath blight and 9 fl oz/A will give you 21 days worth of protection. Stratego applied at 16 to 17 fl oz/A will give you approximately 17 days worth of protection against sheath blight and 19 fl oz/A will give you 21 days worth of protection.

Another disease not to forget due to this weather is neck blast, especially with CL 151. Historically, blast is a problem on lighter texture soils where it is hard to maintain a deep flood. CL 151 rates very susceptible to neck blast. Therefore, if you have CL 151 I would be sure and look for blast lesions on the leaves. Previous research has indicated that Stratego at 16 to 19 fl oz/A or Quadris at 12.5 to 15.5 fl oz/A applied at late boot (before panicle emergence) will help provide protection against blast.

Rice stinkbug pressure this year seems to be higher than in previous years. Current threshold levels for rice stinkbugs are 5 stinkbugs/10 sweeps the first two weeks of heading and 10 stinkbugs/10 sweeps the second two weeks of heading. All of the pyrethroids labeled in rice perform equally as long as the proper labeled rate is used for rice stinkbug control. Be sure and read label instructions for use in rice before making an application.


Mississippi Crop Situation #14
Dr. Nathan Buehring
July 2, 2009

Conditions over the last week have continued to be hot and dry. The current forecast for the upcoming week calls for 90 to 95 F temperatures with the chances of rain. With the continued hot temperatures, rice growth and development has been at a good pace. There is a very small amount of rice in the southern delta that is heading. I would expect heading to start on a much wider scale in about 10 days or so.
Disease pressure and movement has been very lack luster over the last week. Most people are opting for a single fungicide application at boot split. Over the last couple of mornings there have been heavy dews which will be more conducive for sheath blight. If weather continues to be humid with slightly cooler temperatures, sheath blight pressure and movement will begin to increase. Continue to scout and monitor rice fields for diseases. This is the best way to know whether a fungicide application is warranted. I have also had a couple of calls on fall armyworms in rice. Our threshold is 5 worms per 10 sweeps or when you see considerable damage. Keep an eye out for them because they usually can eat a lot of foliage in a short period of time. Any labeled pyrethroid at the labeled rate will control fall armyworms.

On Tuesday, USDA released their acreage report. Total long grain acres in the US were reduced from 2.526 million acres down to 2.232 million acres. That is a reduction of 294,000 acres. Most of the reduction in long grain acres came from Arkansas and Louisiana. Mississippi long grain acres only showed a reduction of 1,000 acres. Mississippi rice acres were reduced more than this small amount, but there may have been some acres unaccounted for in the earlier March prospective plantings report. With a reduction in acres, there will be a reduction in total long grain production. Calculating an average yield of 6750 lb/A (150 bu/A) times the amount of acres lost will result in a net reduction of 20 million hundredweight. This should be very supportive to long grain rice prices.


Mississippi Crop Situation #13 – Rice
May 29, 2009
Dr. Nathan Buehring

Conditions for the last couple of weeks have been hot and dry, especially in the southern portion of the delta. Very little rain has been received and very little is in the forecast. With the 95 F plus temperatures this crop is growing at very good pace. Some rice that was planted in March should begin to head at the first of next week. The early April planted rice is past midseason and the late April rice will be approaching midseason within a week or so. With no rice being planted the first two weeks in May, the late May planted rice is flooded or will be shortly.

My acreage estimate for 2009 would be close to 230,000 acres which is the same as last year. The southern delta increased in acres, but the northern delta decreased in acres. I would estimate that at least 10,000 acres of rice in the northern delta did not get planted due to the excessive rains.

USDA estimates our crop condition as 3% Very Poor, 7% Poor, 19% Fair, 68% Poor, and 3% Excellent. As it does every time this year, the crop appears to look fairly good. I would argue though sometimes things often look better from the turnrow than out in the field. This year, rice stands are thinner and there are holes where there is no rice. From the turnrow, this cannot often be seen due to the height and vegetative growth surrounding those areas. As you can tell I am still a little leery about this year’s rice crop. This is because of two main reasons: thin rice stands and a 1/4th to 1/3rd of our rice was planted after May 15th.

On the insect forefront, there are no major issues. Rice Water Weevils have not been a major problem this year. Most of our rice gets a preventative pyrethroid application at flooding though. Rice stinkbugs will be on wait see program. With the recent dry weather, the grass along ditches and turnrows has not been actively growing, which may help keep the populations at a lower level.

Diseases such as sheath blight have been relatively low. The hot and dry conditions have not been very conducive for pathogens. If the conditions persist for the next 2 to 4 weeks, a lot of the rice will receive 0 to 1 application of a fungicide. This will mainly depend on the variety. The Clearfield varieties and Cocodrie will likely need one application. All other varieties and hybrids will receive a fungicide application only if presence and severity warrants for an application. If sheath blight is present, watch for movement up the plant. With the current conditions we are under, sheath blight will likely be present but movement up the plant will be very minimal. If the sheath blight is not moving up the plant, a single fungicide application at late boot will only be necessary. This will help protect the plant through heading from sheath blight and kernel smut.