Treatment map for Hoffpauir Farm.

Applying permanent flood to the Dermacor X-100-treated field on May 13, 2009.

Average number of RWW larvae per core for all treatments included in our test. This is a single-replicate test, and each average is based on ten core samples per field.

Location 1 – Hoffpauir Farm

Cooperator: Darryl Hoffpauir
County Agent: Barrett Courville
Consultant: Rustin Gilder
Variety: CL 161
Seeding Rate: 70 lb/acre

Directions to field location: Southwest of Rayne, La., at the intersection of Theriot Rd. and Monceaux Rd.

Field description: drill planted into soybean stubble. Fields are about 10 acres each. Field north of test location will be planted in soybeans.

UPDATE on May 19, 2009

Field 4 received Trebon treatment on May 12, 2009

Fields 6 and 7 received Karate treatment with the Newpath application on May 8, 2009

Permanent flood was applied to all fields on May 13, 2009

Fields 8 and 9 will received Mustang 1.5EC on fertilizer today, May 19, 2009.

Field 4 will receive an applicaion of Mustang 1.5ec on fertilizer on May 25, 2009 -- weather permitting.

RWW core samples will be taken on June 10, 2009.

We will have a meeting at the Hoffpauir farm demo location following the LSU AgCenter South Farm Rice/Soybean Tour on June 18, 2009.  Lunch will be provided.  This will be a good time to look at the fields and discuss the demonstration test.  We will also be able to report the results of the core samples taken on June 10, 2009.

Update on June 11, 2009

All treatments went out according to plans. RWW cores were taken on June 10, 2009 -- 4 weeks after establishment of permanent flood. The data are presented in the cooresponding graph. RWW core data is an average of 10 cores/field with the exception of the Karate pre-flood treatment, which is an average of 9 cores. It is estimated that for each RWW larva/core, there is a .5-1.5% yield loss.

All of the insecticides provided some level of control. Control ranged from 71 to 97%. The untreated check field had an average of 12.8 RWW larvae per core. Dermacor X-100 seed treatment provided the best control with 0.4 RWW larvae per core. Karate Z pre-flood followed by Mustang 1.5ec on fertilizer post-flood-treated field had 0.8 RWW larvae per core. The field treated with Mustang 1.5 ec post-flood had an average of 0.9 RWW larvae per core. The Karate Z pre-flood-treated field had an average of 1.9 RWW larvae per core, while Trebon had an average of 3.7 RWW larvae per core. We will now compare these results to the other 5 locations in this test.

Yield data will be reported when they are gathered at the end of the season.