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Desire To Succeed Describes The Rookie
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First Line Of Defense
A New Trio Hits The Field
Variable Rate Fertility
From the Editor
Rice Producers Forum
USA Rice Federation
Specialists Speaking
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First Line Of Defense

Seed treatments step up to protect young, vulnerable rice plants

By Carroll Smith
Editor
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Following the loss of Furadan and Icon, rice farmers didn’t have many effective choices for controlling insect pests, such as rice water weevil, that attacked their crop. Louisiana producer Christian Richard says his only option was to drain the field, dry it out, then flood it up again. David LaCour, who also farms rice in south Louisiana, says he used two different strategies: 1) Dry out the field right before green ring and 2) try to control rice water weevils with foliar applications of pyrethroids.

Today, new rice seed treatments give farmers access to much more effective control options with the added bonus, in many cases, of increased yield and plant vigor. CruiserMaxx Rice insecticide and fungicide combination and Dermacor X-100 are receiving favorable reviews from farmers, Extension and researchers.

Gus Lorenz, University of Arkansas Division of Agriculture Extension entomologist, says they have conducted over 100 replicated trials over the past three years with CruiserMaxx, Dermacor and NipsIt INSIDE, which is another rice insecticide seed treatment that is pending registration at this time.

“They all have value to the grower, but there may be certain places where one fits a little better than the other,” Lorenz says. “In the Grand Prairie and White River region where we have thin, silt loams, we have an insect problem called grape colaspis that typically shows up in a soybean/rice rotation.”

The Arkansas entomologist says based on the data that they have gathered up to this point, CruiserMaxx and NipsIt INSIDE appear to provide good control of this pest, while Dermacor provides suppression. Where rice water weevil is a problem, Lorenz says their research has shown that Dermacor appears to have an edge because Dermacor-treated rice consistently has fewer weevils in it.

“For our growers in Arkansas, all of the products are going to provide adequate control of rice water weevil, so farmers need to select the product that will help them maintain their competitive edge,” Lorenz says.

In Louisiana, LSU AgCenter Extension entomologist Natalie Hummel says growers need to consider secondary pest problems.

“If you’re going into the season anticipating having problems with borers, armyworms or other lepidopteran pests, then Dermacor would provide control in that situation,” Hummel says. “On the other hand, if you typically have problems with chinch bugs or have a history of grape colaspis, consider looking at CruiserMaxx.”

Don Groth, LSU AgCenter plant pathologist, comments on what the fungicide packaged in CruiserMaxx Rice brings to the table.

“By preventing seedling diseases, it typically gives you about a 15 to 20 percent increase in stand under wet, cool conditions,” Groth says. “However, if it’s warm, and perfect conditions exist for rice germination, the fungicide usually doesn’t increase your stand as much. But it’s a good tool.”

Contact Carroll Smith at csmith@onegrower.com.

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