Research on Reduced Rates of Fungicides for Anthracnose Control in Annual Bluegrass Putting Greens

The final data points are on this research project in a Research project with Rutgers University in particular Anthracnose Control with reduced rates of Fungicides and GenNext Products.  The label rate for Daconil Ultrex 82.5 is 3.2 oz. per 1000 sq. feet. This research was done reducing the rate by 25% to 2.4 ounces and 50% to 1.6 ounces See the charts Rutgers 2014

The table below shows the average result of four plots, through end of the trial of this year, using Daconil Ultrex 82.5 plus GenNext A&B at the 8 oz. of GenNext  A and 8 oz. GenNext B per 1000 square feet.

Anthracnose Trial		DAC Rate	Label		Percent Turf Area infested (%) plot
Products		/1000 sq feet	%	APP Sch	27-Jun	7-Jul	17-Jul
Daconil Ultrex 82.5		3.2	100%	14 day	8.5	10.3	13.5
GenNext A&B +Daconil Ultrex 82.5		1.6	50%	14 day	4.8	5.0	3.5
GenNext A&B +Daconil Ultrex 82.5		2.4	75%	14 day	4.3	4.3	2.0
GenNext A&B +Daconil Ultrex 82.5		3.2	100%	14 day	3.5	5.3	1.8
(DAT) Days after last treatment					DAT	DAT	DAT
was applied.					10	6	2

Anthracnose Trial		DAC Rate	Label		Percent Turf Area infested (%) plot
Products		/1000 sq feet	%	APP Sch	27-Jul	6-Aug	16-Aug	26-Aug	5-Sep
Daconil Ultrex 82.5		3.2	100%	14 day	9.3	12.8	8.8	11.8	10.5
GenNext A&B +Daconil Ultrex 82.5		1.6	50%	14 day	6.3	11.3	4.5	1.3	0.5
GenNext A&B +Daconil Ultrex 82.5		2.4	75%	14 day	3.8	3.0	1.8	0.0	0.0
GenNext A&B +Daconil Ultrex 82.5		3.2	100%	14 day	4.0	4.8	0.0	0.3	1.0
(DAT) Days after last treatment					DAT	DAT	DAT	DAT	DAT
was applied.					12	8	4	14	24

Values below 15% turf area infected with anthracnose are typically judged to be acceptable in research on this disease.

So as you can see we had significantly better control of the anthracnose using GenNext A&B and Daconil Ultrex at reduced rates.