|
| | Average number of rww larvae/core - calculated from 10 cores that were pulled from the field 4 weeks after establishment of permanent flood. |
|
|
Location 3 – LaHaye Farm
Cooperator: Kenneth LaHaye
County Agent: Keith Fontenot
Consultant: Kent Guillory
Variety: CLXL745
Seeding Rate: 30 lb/acre
Directions to field location: 4 miles north of Ville Platte, La., on Hwy 167, just before the hills. If driving north on Hwy 167, look for power lines on left after last houses. The power poles run through the fields. Flagging is visible from the road.
Dermacor-treated field is across HWY 167 and off the main road. This field can be viewed only with permission of cooperator.
Date Planted: Mar. 28, 2009
Date Flood applied to Field: May 28, 2009
Date RWW Core samples taken: June 23, 2009
Fertilizer plan:
· 130 lb urea pre-flood (5/26/09)
· 130 lb urea post-flood (6/1/09)
· Top-dressed at green ring – no insecticide applied (All Fields)
Table - Insecticide treatments, rates, and relative rice water weevil control when compared to the untreated check.
|
Field Number |
Treatment |
Rate |
Timing |
% RWW Control |
|
301 |
Karate Z |
2.56 fl. oz./acre |
Pre-flood |
77 |
|
302 |
Karate Z followed by… |
2.56 fl. oz./acre |
Pre-flood |
91 |
|
Mustang EW on fertilizer |
4.0 fl. oz./acre |
7 days post-flood |
|
303 |
Trebon 3G |
9 lb./ acre |
Post-flood |
61 |
|
304 |
Mustang EW on fertilizer |
4.0 fl. oz./acre |
Immediately post-flood |
-4 |
|
305 |
Untreated Check |
No insecticide |
Not applicable |
N/A |
|
306 |
Dermacor X-100 |
5 oz./100 lb. seed |
At planting |
88 |
Yield data will be reported after the fields are harvested.