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The Southwest Louisiana Rice and Soybean Forum will be held at the Welsh Community Center on January 3, 2012. Here is the program for the forum. For more information please contact county agent Barrett Courville: bcourville@agcenter.lsu.edu

8:00 a.m.  Welcome – Allen Hogan

8:05 a.m. – 8:25 Rice Production Practices for 2012 – Dr. Johnny Saichuk, LSU AgCenter Rice Specialist

8:25 – 8:45 Rice Variety Update – Dr. Steve Linscombe, LSU AgCenter Rice Breeder

8:45 – 9:00 Rice Weed Management – Dr. Eric Webster, LSU AgCenter Weed Scientist

9:00 – 9:15 Rice Disease Management – Dr. Don Groth, LSU AgCenter Plant Pathologist

9:15 – 9:30 Rice Fertility – Dr. Dustin Harrell, LSU AgCenter Agronomist

9:30 – 9:45 Rice Insect Management – Dr. Natalie Hummel, LSU AgCenter Entomologist

9:45 – 10:00 Rice and Soybean Market Update – Dr. Kurt Guidry, LSU AgCenter Economist

10:00 -10:15 Refreshment Break

10:15 – 10:35 Soybean Varieties & Management Practice – Dr. Ronald Levy, LSU AgCenter Soybean Specialist

10:35 – 10:55 Soybean Insect Control and Seed Treatments – Dr. Jeff Davis, LSU AgCenter Entomologist

10:55 – 11:10 SPCC Update – Mr. Russ Green

11:10 – 11:25 LARPC and Rice Referendum – Mr. Kevin Berken

11:25 – 11:30 Soybean Demonstrations – Allen Hogan

11:30 -12:00 WPS, Drift Control and Private Pesticide Recertification – Allen Hogan and Barrett Courville

12:00 Lunch – Donors

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On March 16, 2011, we planted our first site for the 2011 LSU AgCenter rice water weevil demonstration test.

Acadia Parish County Agent Barrett Courville following the drill as we planted the test plots.

The purpose of our rice water weevil demonstration test is to compare currently recommended seed treatment insecticides on commercial farms in Louisiana. This year we are comparing three insecticide seed treatments (CruiserMaxx, Dermacor X-100 and NipsitINSIDE) to an untreated check. 

Rustin Gilder walking near the flagging on the edge of the plots. Flagging is color-coordinated with the treatments to make it easier to monitor progress during the season.

Here are the details about the Acadia Parish test site:

Parish Acadia
Cooperator Glen Simon & Wes Simon
County Agent Barrett Courville
Consultant Rustin Gilder
Distributor Crowley Grain
Variety XL745
Seeding rate 22
Drill width 36
Length of field 700
Acres per treatment 10.00
Total acres 40
Total lb seed 220
CruiserMaxx – A 15.4 fl oz total
Dermacor X-100 – B 17.5 fl oz total
Nipsit-Inside – C 4.22 fl oz total
Untreated – D no insecticide

We will take stand counts and plant height data 2 weeks after seedling emergence.  To assess insecticide efficacy, we will collect rww soil cores 4 weeks after application of permanent flood.

Field map with color-coding for the treatments. Feel free to drive by and watch the field as the crop matures during the season.

We intend to have a tour stop at the demo test site at the conclusion of the LSU AgCenter South Farm Tour this summer.  Please monitor the blog for an announcement about the date and details.

Acadia Parish Demo test cooperators Wes Simon, Rustin Gilder, Terry Istre and Barrett Courville.

We greatly appreciate the tremendous effort in time and land-use by our cooperators. We will keep you posted on the progress at this site.  For additional information, please contact Barrett Courville.

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Update: Lunch will be sponsored by Toby McCown (DuPont Crop Protection), Henry Stefanski (FMC), and Josh Zaunbrecher (Syngenta).  Door prizes will be provided by John Bordlee (Valent).  We appreciate their support of the training.

Meeting Announcement:

Second Annual LSU AgCenter Advanced Rice Entomology Training

Date: Wednesday, March 2, 2011

Time: 9 am to noon

Location: LSU AgCenter Rice Research Station Auditorium – Crowley, LA.  Click here for directions.

Tentative Agenda

9:00 am          Welcome, introductions and (optional) pre-test

9:30                 Insect infestations in relation to rice crop phenology – Mike Stout, Professor, Dept. of Entomology, LSU AgCenter

                           You can download Mike’s powerpoint file by clicking here.

10:00               Rice stink bug management – Mike Stout and Natalie Hummel, Assistant Professor, Dept. of Entomology, LSU AgCenter

                           You can download Mike’s powerpoint file by clicking here.

10:30               Coffee break

10:45               Identification of immature stages of insects that attack rice – Rick Story, Professor, Dept. of Entomology, LSU AgCenter

                           You can download Rick’s powerpoint file by clicking here.

11:15               How to use the online rice insect identification guide and roundtable discussion about RiceScout app development project – Natalie Hummel   

                          You can visit the online id guide by clicking here

11:45               (optional) Post-test

Noon               Lunch will be served

A video recording of the presentations can be found by clicking here.

Continuing education units will be available.

The presentations will be recorded and posted online.

For more information you can contact me at,

Natalie A. Hummel, Ph.D.

Assistant Professor/ Extension Specialist

LSU Agricultural Center

Department of Entomology

404 Life Sciences Building

Baton Rouge, La 70803

Office: 225-578-7386

Cell: 225-223-3373

Fax: 225-578-1643

e-mail: nhummel@agcenter.lsu.edu

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Thanks to Bruce Schultz for this nice press release about our guide.  If you haven’t tried it out yet, please visit the site when you have time.  I’d also love feedback about this guide, and where we can go with future development of this sort of technology.

News Release Distributed 12/03/10

Solving the whodunit mystery of insect damage in a rice crop will be easier with a new online program developed by the LSU AgCenter.

Using the process is as easy as playing the board game “Clue” because it uses a simple process of elimination, according to LSU AgCenter experts. But instead of guessing if the perpetrator was Col. Mustard armed with a lead pipe, the usual suspects will be arthropods (insects and mites) such as the rice water weevil, billbug, chinch bug or spider mites.

The program originated from a conversation with Evangeline Parish farmer Richard Fontenot, said LSU AgCenter entomologist Natalie Hummel. “The whole project was his idea.”

Anyone with access to the Internet through a smart phone can get to the guide in the field and through process of elimination, click on a list of symptoms and narrow down the pest and suggested treatments.

“It doesn’t require you to be an entomologist to use it,” Hummel said.

The website starts by asking users to identify the location of visible damage, then lists descriptions of different types of damage with photographs to illustrate the feeding signs so the user can identify the likely culprit.

For example, feeding on the lower part of the plant brings the user to the options of feeding signs on the leaf blade or another part of the plant. If the feeding is on the surface of the leaf blade, the next step is to choose between the first option of feeding on “narrow strips of leaf material removed between veins” or “other type of feeding damage or leaf dehydration.”

The first option would identify the suspect as Public Enemy No. 1 in rice farming, the notorious rice water weevil, or the lesser-known rice leaf miner. The second choice, “Other type of feeding damage or leaf dehydration,” asks the user to further identify the damage, choosing between broken leaf tips, which could be caused by the Southern green stinkbug, or dehydrated leaf tips, which is probably the work of aphids.

“At the final step, you will see a picture of the arthropod and some information about scouting and management,” Hummel said. The guide also has links to videos that show how scouting should be done for rice water weevils and colaspis, a small beetle.

Hummel said rice producers in states outside Louisiana will refer to the site because Louisiana is home to all of the rice insect pests. But she said pesticide recommendations on the website may not have been approved by the U.S. Environmental Protection Agency for use on rice in other states.

This project demonstrates how the LSU AgCenter meets the needs of farmers, said Paul Coreil, LSU AgCenter vice chancellor for extension.

“The online guide will aid farmers who need quick answers to their pest problems,” Coreil said. “With our increasingly tighter budget, we’ve got to figure out cost-efficient ways of providing help, and this is one way of accomplishing that.”

The site address is: http://www.lsuagcenter.com/ricepestguide.

Bruce Schultz

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I’m pleased to announce the release of the Louisiana Online Rice Pest Identification Guide.   Click here to access the guide.

The purpose of this guide is to improve identification of arthropods (insects and mites) that damage rice in Louisiana.  Once the arthropod is properly identified, you will find a link to the Louisiana pest management guide with insecticide recommendations.  We have also included links to scouting videos for the rice water weevil, colaspis, and panicle rice mite.  Although the arthropods featured infest rice in Louisiana, this online guide should be a useful tool in other southern rice producing states.

Here’s how it works – the guide is structured as a dichotomous key – this is a fancy way of saying that you have two choices at each step.  Just click through the guide selecting the description or picture that matches your field problem.  At the final step you will see a picture of the arthropod and some information about scouting and management. 

This is the first public launch of the guide and you may find some glitches – if you see any errors please let me know at nhummel@agcenter.lsu.edu.  

Anna Mészáros and I worked together to build this guide.  We would like to thank Johnny K. Saichuk for providing insect pictures, Lisa West (IT coordinator, CMS), Lukas Thompson (student worker) and J’Nai Bayone (student worker) for technical assistance.  This project was supported financially by the Louisiana Rice Research Board.  We would also like to thank Evangeline Parish Rice Farmer, Richard Fontenot, for suggesting the development of this guide.

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I’ve had a few calls about grasshoppers in rice – particularly in the south-central Louisiana.  I called Mo Way (Texas rice extension entomologist) to discuss this with him.  I know they had some trouble with grasshoppers in Texas earlier this season.  As Mo said this is an odd year, so we are seeing some out of the ordinary insect problems.  Here’s a little information about grasshoppers.     

Possible damage: Grasshoppers can cause defoliation, but unless you exceed 20% defoliation of rice that is actively growing and past the boot stage, then we would not generally recommend a treatment.  Grasshoppers can also feed on grains as they develop in the panicle and this can cause blanking as grains mature – you might see a white, empty hull on a panicle.  The grasshoppers cause this damage by feeding near the bract at the base of the grain.  This damage is usually not severe enough to warrant a treatment.    

Long-horned grasshopper adult - this insect could damage the rice, or actually help out by eating rice stink bugs.

Beneficial insect: Long-horned grasshoppers in particular (bright green with long antennae) are omnivores – they will feed on vegetation and also other insects.  In some cases they can help to manage your rice stink bug infestation by eating the rice stink bugs.     

Recommendation: We do not recommend applying an insecticide for grasshoppers unless you are certain they are causing enough of a reduction in yield to cover the cost of a spray.  It is possible that a pyrethroid application for rice stink bug or stem borer will also control grasshoppers.    

Please contact your local county agent, or me, if you have a severe infestation of grasshoppers and you feel it is causing damage to your rice.

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Dr. Saichuk sent out this message today:

The rice blog page I mentioned some time ago is finally up and running.  I have posted all 2010 editions of Field Notes on it.  However, because of the nature of the blog program it is abbreviated in comparison the Field Notes I send out via e-mail.  I will continue to do both.  Some of you may like the format in the blog and others may want the detail of the other form.  Until I learn the tricks of labeling the photographs in the blog I will have to just try to explain them a little better on the blog.

 The blog address is: www.lariceman.wordpress.com.

Let me know if you have any problems accessing it.  There is a way on the blog page to sign up to be notified via e-mail when one has been posted.  Some of you may like that feature especially if you are using portable devices in the field.

 I may also use the blog page to send out something urgent in between regular Field Notes editions so check it out and let me know what you think.

 Johnny

 John K. Saichuk, Ph.D.
LSU AgCenter Extension Specialist
Southwest Region
1373 Caffey Rd.
Rayne, LA 70578
Office: 337-788-7547
FAX: 337-788-7553
Cell: 337-849-6253

Rice Web Page:  http://www.lsuagcenter.com/en/crops_livestock/crops/rice

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