Yesterday I visited with cooperators in Evangeline and St. Landry Parishes to discuss this years demonstration sites.
County Agents Keith Fontenot and Vince Deshotel and I met with the Morein family, Mr. Kenneth LaHaye and certified crop advisors, Kent Guillory and Dennis Fontenot. The topic of discussion was plans for the rice water weevil and colaspis demonstration sites. At Kenneth’s farm we will evaluate the following rww treatments: CruiserMaxx, Dermacor X-100, Pyrethroid and an untreated check. The pyrethroid treatment will be a shot of Karate with the last application of newpath before permanent flood. We will come in one week after permanent flood and scout for the presence of adult weevils. If present, we will make a second application of pyrethroid.
At the Morein farm we will be looking at colaspis management – if they show up in the field. An adjoining rice field suffered a reduction in plant stand due to colaspis infestation in the 2009 season. We worked with Mr. Dennis Fontenot to sweep the soybeans in a neighboring field. Dennis collected data on colaspis density in the beans and also sent us samples for species identification. This year, rice will be planted into the bean field we sampled for colaspis adults in 2009. We have arranged treatments of CruiserMaxx, Dermacor X-100 and some untreated areas in the rice field. I certainly hope we don’t have problems with colaspis again this season, but if we do, we should be able to learn more about colaspis management.
After we finalized our plans for the rww and colaspis demos in Evangeline Parish, Vince and I headed over to St. Landry Parish. I had not realized that St. Landry is such a large Parish. We stopped at a beautiful spot near a Bayou outside of Palmetto, LA that is farmed by Charlie Fontenot.
Crop Consultant Dean Reed and Charlie are fairly certain that they suffered about a 10% stand loss from colaspis feeding on rice seedlings in 2009. This resulted in re-planting on high ground in about 200 of the 2,000 acres of rice that Charlie grew last season. We decided to work with Micheal Fruge (Horizon Ag) on a seeding rate evaluation with some clearfield varieties. CruiserMaxx will be used as a the seed treatment at multiple seeding rates. This will give us a chance to evaluate activity at both standard and low seeding rates. We will also compare to Dermacor X-100 and an untreated check. I don’t know if the colaspis will show up in the rice, and hopefully they don’t turn out to be a problem this season.
Out of curiosity, we dug around in the soybean stubble at a high elevation on the farm to see if we could find any colaspis grubs. We found an abundance of earthworms and a few other critters in the soil, but no colaspis. It is possible that they are still down low in the soil profile. The soil temperature was 69F, and had very nice tilth. It was nice to give my hands a break from the keyboard for a change. This should be an interesting test location, and if nothing else it sure is beautiful scenery.