D.F. Walker1, P.D. Sandeson2 and A.O.M. Smith1
(Partners: New Brunswick Soil and Crop Improvement Association and Novartis Crop Protection Canada Inc)
Abstract: In 1999 a collaborative project between Novartis Crop Protection Canada Inc., the New Brunswick Department of Agriculture and Rural Development and the New Brunswick Soil and Crop Improvement Association was established to evaluate the performance of Tilt, Stratego, Flint and Quadris on leaf diseases in spring wheat. A randomized complete block design was set up in the Hartland area of New Brunswick on May 4. There were ten treatment plots (14m2) replicated four times. The application of the fungicides at varying rates (62.5, 125, and 250 g ai/ha) occurred either at Zadocks growth stage (GS) 32-37, GS 55, or split, half at GS 32- 37 and half at GS 55. Yield data and visual ratings on crop injury were collected. Yields ranged from 4.7 - 4.2 T/ha. Hectoliter weights ranged from 89.2 - 83.8 kg/Hl. The thousand kernel weights ranged from 40.3 - 38.3 grams. In the summer of 1999 weather conditions were extremely dry and disease pressure was low. No disease was evident throughout the study. Therefore, there was no significant difference between the treatments.
1Livestock and Livestock Feed Branch, NBDARD, Fredericton, NB
2New Brunswick Soil and Crop Improvement Association, Fredericton, NB