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Tables 1 to 3 from:


Stiles, C. M., Harmon, P. F., Brecht, M. O., and Datnoff, L. E. 2007. Evaluation of new fungicides and surfactants for the management of fairy ring associated with Lycoperdon sp. in bermudagrass. Online. Applied Turfgrass Science doi:10.1094/ATS-2007-0404-01-RS.



Table 1. Evaluation of fungicides for control of necrotic fairy ring in 2004.

Treatmenty and
rate/1000 ft²		 Mean percent necrosisx Mean quality ratingx
6 Aug 11 Aug 2 Sep 28 Jul 11 Aug 2 Sep
Heritage 50WG 0.4 oz       5.3 az       8.7 a       3.3 a     4.7 a 6.0 a     7.7 a
ProStar 70WP 4.5 oz     10.7 a       4.7 a       5.0 a     4.0 ab 6.7 a     6.7 a
Insignia 20WG 0.9 oz     23.3 ab     38.3 b     38.3 b     2.3 c 3.0 b     4.0 b
Emerald 70WG 0.18 oz     43.3 bc     50.0 bc     50.0 bc     2.7 bc 3.3 b     3.3 bc
Aqua-Gro 8.0 oz     53.3 bc     66.7 c     70.0 c     2.3 c 1.7 b     2.7 bc
Not treated     56.7 c     66.7 c     75.0 c     2.3 c 2.3 b     2.0 c

 x Percent necrosis: visual estimate of the percent of the ring that transects the plot containing necrotic turf. Quality ratings: scale from 1 to 9, where 1 = dead turf, 6 = acceptable quality and 9 = highest turf quality.

 y Treatments were applied on 15 and 28 July, and 11 and 27 August 2004.

 z Values are means of three replicates. Means followed by the same letter within each column are not significantly different according to Fisher’s protected LSD (P ≤ 0.05).



Table 2. Evaluation of fungicides for control of necrotic fairy ring in Trial 1, 2005.

Treatmentx &
rate/1000 ft²		 Mean percent necrosisw Mean quality ratingsw
9/22 9/30 10/6 9/22 9/30 10/6 11/19 11/27
Insignia 20WG
0.9 oz + Magnusy		  10.0 cz   2.3 c   13.3 c    5.3 a 7.3 a 6.7 a       6.0 a 5.7 a
ProStar 70WP
4.5 oz + Magnus		  10.0 c   8.3 c   31.7 bc    4.7 ab 6.3 a 5.3 ab    4.7 ab 5.0 a
Heritage 50WG
0.4 oz + Magnus		  26.7 bc   16.7 bc   31.7 bc    3.0 bc   5.7 ab 6.0 ab    4.0 b 4.3 a
Insignia 20WG
0.9 oz.		  31.7 bc   33.3 bc   28.3 bc    2.7 c   3.3 bc 4.3 ab    2.3 c 2.3 b
Endorse 2.5WP
4 oz + Magnus		  40.0 b   36.7 bc   43.3 bc    2.7 c 2.7 c 3.3 bc    2.3 c 2.3 b
Magnus 4 oz  38.3 b   46.7 ab   50.0 b    2.3 c 2.7 c 3.7 bc    2.0 c 2.3 b
Not treated  73.3 a   76.7 a   83.3 a    1.3 c 1.0 c 1.3 bc    1.3 c 1.3 b

 w Percent necrosis: visual estimate of the percent of the ring that transects the plot containing necrotic turf. Quality ratings: scale from 1 to 9, where 1 = dead turf, 6 = acceptable quality, and 9 = highest turf quality.

 x Application dates were 9 and 23 September and 6 October.

 y When indicated, Magnus was added at a rate of 4 oz/1000 ft².

 z Values are means of three replicates. Means followed by the same letter within each column are not significantly different according to Fisher’s protected LSD (P ≤ 0.05).



Table 3. Evaluation of fungicides for control of necrotic fairy ring in Trial 2, 2005.

App.
Code		 Treatment Rate
(oz/1000 ft²)		 Inter
-val		 Mean quality ratingsw
10/13 10/20 10/26 11/3 11/19 11/27
ax
b
c		 Insigniay+ ProStary+ Magnus
Insignia + Magnus
ProStar + Magnus		 0.9 + 4.5 + 4
0.9 + 4
4.5 + 4		 14  4.3 az 5.0 a 5.5 a 5.5 a 5.5 a 6.3 a
a
b
c		 Insignia + ProStar
Insignia
ProStar 		0.9 + 4.5
0.9
4.5		 14  5.0 a 6.0 a 6.0 a 5.8 a 5.8 a 6.0 ab
a,b,c Insignia 0.9 14  4.5 a 5.3 a 5.5 a 4.8 ab 4.8 a 4.8 b
a,c ProStar 4.5 28  4.3 a 3.5 b 3.5 b 3.5 bc 1.8 b 2.0 c
— Not treated — —  2.5 b 3.3 b 2.0 c 2.0 c 1.8 b 2.8 c

 w Quality ratings: scale from 1 to 9, where 1 = dead turf, 6 = acceptable quality and 9 = highest turf quality.

 x Application codes a, b, and c are dates 15 September, 3 October, and 17 October 2005 respectively.

 y Formulations: Insignia 20WG, Prostar 70WP.

 z Values are means of four replicates. Means followed by the same letter within each column are not significantly different according to Fisher’s protected LSD (P ≤ 0.05).




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