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Table 1 from:


Hagan, A. K., Campbell, H. L., Bowen, K. L., and Pegues, M. 2006. Calendar and AU-Pnuts advisory programs compared for late leaf spot and rust control on peanut in southwest Alabama. Online. Plant Health Progress doi:10.1094/PHP-2006-1110-01-RS.



Table 1. Application dates for fungicides in four scheduling strategies for the study conducted in Fairhope, Alabama during 2003, 2004, and 2005.

Schedule Fungicide 2003 2004 2005
2-week Chlorothalonil*

Tebuconazole†
7/8, 9/14, 9/29

7/22, 8/4, 8/18, 9/2
6/21, 7/6, 9/8

7/20, 7/29, 8/13, 8/26
6/22, 7/5, 9/13

7/20, 8/1, 8/15, 9/1
Chlorothalonil

Azoxystrobin‡
7/8, 8/4, 9/2, 9/14, 9/29
7/22, 8/18
6/21, 7/20, 7/29, 8/26, 9/8
7/6, 8/13
6/22, 7/20, 8/15, 9/1, 9/13
7/5, 8/1
3-week Chlorothalonil

Tebuconazole
7/8, 9/29

7/29, 8/18, 9/8
6/21, 9/8

7/11, 8/3, 8/19
6/22

7/13, 8/1, 8/22, 9/13
Chlorothalonil

Azoxystrobin
7/8, 9/8, 9/29

7/29, 8/18
6/21, 8/3, 9/8

7/11, 8/19
6/22, 8/1, 9/13

7/13, 8/22
4-week Chlorothalonil

Tebuconazole
7/8, 9/29

8/4, 9/2
6/21, 9/8

7/20, 8/13
6/22

7/20, 8/15, 9/13
Chlorothalonil

Azoxystrobin
7/8, 9/29

8/4, 9/2
6/21, 9/8

7/20, 8/13
6/22, 9/13

7/20, 8/15
AU-Pnut§ Chlorothalonil

Tebuconazole
7/8, 9/23

7/22, 8/18, 9/2
Same as 2-week
schedule
Same as 2-week
schedule
Chlorothalonil

Azoxystrobin
7/8, 8/18, 9/23

7/22, 9/2
Same as 2-week
schedule
Same as 2-week
schedule

 * In the chlorothalonil-only program, every fungicide application was chlorothalonil at 1.12 lb a.i./acre.

 † Fungicide applications were tebuconazole at 0.20 lb a.i./acre in the tebuconazole program; remaining applications were chlorothalonil.

 ‡ Fungicide applications were azoxystrobin at 0.30 lb a.i./acre in the azoxystrobin program; remaining applications were chlorothalonil.

 § AU-Pnuts triggers a fungicide application based on the number of accumulated rain events, each with > 0.10 inch of rain or irrigation within a 24-hour period, and the 5-day average rainfall forecast (18).




© 2006 Plant Management Network.