What’s New in Turfgrass Fungicides? New

Products, Premixes, and Formulations

(2006-2011)

Bruce B. Clarke, Ph.D. Extension Specialist in Turfgrass Pathology

School of Environmental and Biological Sciences Rutgers University

New Turfgrass Fungicides Released in the Past 5 Yrs

I. New Active Ingredients - 8

II. New Premixes - 11

III. New Formulations of Existing Products - 4

IV. New Generic Releases - > 15

New Turfgrass Fungicides Trade Name Common Name FRAC #

Civitas + Harmonizer mineral oil + pigment P

Daconil Action chlorothalonil + acibenzolar

M5 + P1

Segway cyazofamid 21

Trinity 1.69SC triticonazole 3

Triton triticonazole 3

Torque tebuconazole 3

Tourney metconazole 3

Velista penthiopyrad 7

New Turfgrass Fungicides Trade Name Common Name FRAC #

Civitas + Harmonizer mineral oil + pigment P

Daconil Action chlorothalonil + acibenzolar

M5 + P

Segway cyazofamid 21

Trinity 1.69SC

Triton

triticonazole

triticonazole

3

3

Torque

Tourney

Velista

tebuconazole

metconazole

penthiopyrad

3

3

7

Induced vs Systemic Resistance

Phenolics

and other

fungal

inhibitors

Modified from Vallad and Goodman, 2003 Crop Science

Civitas + Harmonizer

Civitas + Harmonizer?

Civitas is a mineral oil (Acropetal penetrant)

- mixture of food-grade synthetic isoparaffins and a

food-grade emulsifier developed by Suncor (Petro-Canada)

Mode of action: Induced systemic resistance

(activates plant signaling genes/antimicrobial

compounds).

Harmonizer (green pigment)

Civitas, was registered in the U.S. in Feb 2009.

ggggggggggggggggggggggg

Control of Anthracnose Basal Rot with Civitas 98AS on an Annual Bluegrass (Poa annua L.) Green in

North Brunswick, NJ - 2009

Excellent disease control obtained with a 5.7% solution of Civitas applied

on a 14-day interval from 15 May – 21 August 2009

ggggggggggggggggggggggggggggggggggggggggggggggggggg

ggggggggggggggggggggggg

Control of Anthracnose Basal Rot with Civitas 98AS on an Annual Bluegrass (Poa annua L.) Green in

North Brunswick, NJ - 2010

Relatively poor disease control obtained with a 6% solution of Civitas +

Harmonizer pigment applied every 14-d from 18 May – 17 August 2010 – Note thinning and sealing off of the soil surface on Civitas treated turf

ggggggggggggggggggggggggggggggggggggggggggggggggggg

- = – –

=

Relative Efficacy of New Fungicides for Cool - Season Turf Diseases : 2012 (Golf)

0

* Efficacy on a 1 4 Scale, where 1 not effective, 2 = fair good control, 3 = good excellent control, and 4 = excellent

control. Limited insufficient data.

3 applications Civitas (16.0 fl oz + Harmonizer 1.0 fl oz)

R. Latin 2010

3 applications Emerald 0.9 oz

R. Latin 2010

32 oz/M Civitas 1.5 oz/M Propiconazole

16 oz/M Civitas 0.75 oz/M Propiconazole

5 oz/M Chlorothalonil 0.25 oz/M Medallion 3 oz/M Propiconazole

32 oz/M Civitas 1.5 oz/M Propiconazole

Civitas 98 AS (Mineral Oil)

Conclusions:

● Preliminary results indicate that disease control and

phytotoxicity with Civitas + Harmonizer is weather

dependent.

● Additional research is needed before Civitas can be

recommended. However, if used carefully, it may

represent another chemistry that can be used control

important diseases, particularly during cool weather.

What is Daconil Action

●Daconil Action contains chlorothalonil and acibenzolar,

a systemic compound which induces the plant’s natural resistance to disease.

● This is a unique mode of action which mimics natural

systemic acquired resistance (SAR) found in most plants.

● Acibenzolar has no direct effect on the pathogen.

Daconil Action – Chlorothalonil + acibenzolar

– Syngenta released for sale fall 2011

– Acibenzolar belongs to FRAC group P and induces

host plant defense

– Stimulates natural defense or SAR

– Controls every disease that Daconil does + some

suppression of Pythium

– Improves turfgrass quality compared to chlorothalonil-

alone

– On many rating dates has shown improved disease

control when compared to same rate of chlorothalonil

- = – –

=

Relative Efficacy of New Fungicides for Cool - Season Turf Diseases : 2012 (Golf)

0

* Efficacy on a 1 4 Scale, where 1 not effective, 2 = fair good control, 3 = good excellent control, and 4 = excellent

control. Limited insufficient data.

Control of Anthracnose on a Annual Bluegrass Green - Rutgers

*significant reduction of anthracnose by Acibenzolar-S-methyl (ASM)

* *

*

*

Application dates: May 17, May 31, June 14, June 28, July 12, July 27 and August 9, 2006. Location: Hort Farm II – Rutgers University Rates are listed at product per 1,000 sq ft. ASM = Acibenzolar-S-Methyl applied as a 50 WP

Untreated

Daconil Ultrex 3.2 oz – 14 day

A1980 0.006 oz – 7 day

Daconil Action 1.5 fl oz – 7 day

Photos taken at Rutgers Univ. bent green

on August 27,2010

Daconil Action™ is not currently registered for sale or use in all states. Please check with your state or local extension service before buying or using this product.

Pythium Blight* Trial Conducted by Dr. Bruce Clarke Rutgers University - 2011

Daconil !ction™ 2.0 fl oz

Untreated Photos taken on July 26, 2011

Control of Pythium Blight on Perennial Ryegrass : Rutgers, 2011*

*

*

*Fungicides Applied from June 17 to August 12, every 14d

Velista (DPX-LEM17)

Active ingredient: penthiopyrad

SDHI fungicide acropetal penetrant

Fungicide class: carboximide

FRAC group: 7

Formulation: 50WDG

Application rate: 0.3 - 0.5 oz 1000-ft-2

Late 2011: Approved in Canada; pending in US: – anthracnose – red thread

– dollar spot – gray snow mold

– brown patch – large patch

– leaf spot – rust

The vital role of the respiratory pathway in fungi makes a good target for new pesticides

complex III QiI (inside) inhibitors like complex III Qo (outside) inhibitors like the cyazofamid (Segway) QoI (strobilurins) fungicides

complex II inhibitors like carboxin, boscalid,

penthiopyrad (Velista)

- = – –

=

Relative Efficacy of New Fungicides for Cool - Season Turf Diseases : 2012 (Golf)

0

* Efficacy on a 1 4 Scale, where 1 not effective, 2 = fair good control, 3 = good excellent control, and 4 = excellent

control. Limited insufficient data.

Evaluation of Fungicides for control of Brown Patch – Bentgrass : Rutgers, 2011*

% d

isea

se /

plo

t

* Fungicides applied from June 10 to August 19

Anthracnose—Storrs, CT 2011

8 Aug

Velista Untreated 0.3 oz.

Anthracnose—Storrs, CT 2011

8 Aug

Velista Signature Untreated 0.3 oz. 4.0 oz.

Dollar spot control on creeping bentgrass

fairway—UCONN 2010

20 DAT

21-d

0

2

4

6

8

10

12

14

16

18

20

11-Jun 21-Jun 1-Jul 11-Jul 21-Jul 31-Jul 10-Aug

% D

olla

r Sp

ot

DPX-LEM17-76 0.3 oz

DPX-LEM17-76 0.5 oz

Daconil Ultrex 3.2 oz

Banner MAXX 2.0 fl oz

untreated

21-d

21-d

21-d

14-d

31 DAT

*Applied every 14-d or 21-d from early-Jun through late-Jul 2010

Chemical Control of Pythium Blight

New Fungicide Turfgrass Active Ingredients:

Segway (cyazofamid)

Prevetive Control of Pythium Blight on Perennial Ryegrass : Rutgers, 2010*

*Fungicides Applied from June 18 to July 23, every 14d

New Turfgrass Fungicide Mixtures

Trade Name Common Name FRAC #

Concert chlorothalonil + propiconazole M5 + 3 Disarm C fluoxastrobin + chlorothalonil 11 + M5 Disarm M fluoxastrobin + myclobutanil 11 + 3

Honor boscalid + pyraclostrobin 7 + 11 chlorothalonil + propiconazole +

Instrata M5 + 3 + 12 fludioxonil

Interface iprodione + trifloxystrobin 2 + 11 Pillar pyraclostrobin + triticonazole 11 + 3

Renown chlorothalonil + azoxystrobin M5 + 11 Reserve chlorothalonil + triticonazole M5 + 3 Stellar fluopicolide + propamocarb 28 + 43 Tartan trifloxystrobin + triadimefon 11 + 3

Relative Efficacy of New Turfgrass Fungicide Mixtures: Cool-Season Grasses - Golf

Algae Anthracnose Brown Patch

Brown Ring

Patch

Copper Spot

Dead Spot

Dollar Spot

Fairy Ring

Gray Leaf Spot

Gray Snow Mold

Concert

L

L

L

3 3.5

L

L

L

L

3

L

3

3

4

L

L

L

L

3

L

L

L

Disarm C 3 4 3.5 4

Disarm M 3 3.5 2.5 4

Honor 3 4 4 4

Instrata L L 4 L 3.5

Interface 3 4 3.5 L

L

L

L

Pillar 3 2.5 3 4

Renown 3 4 3.5 4

Reserve 3 4 4 4

Stellar

a Efficacy on a 1 - 4 scale, where 1 = not effective, 2 = fair - good control, 3 = good - excellent control, and 4 = excellent control. b

Reduced sensitivity to DMI fungicides reported. c Phytotoxicity possible during hot weather

Influence of Fungicides on Dollar Spot (Green) : Rutgers, 2011*

*Fungicides applied from May 24 to August 23

New Turfgrass Fungicide Formulations

Trade Name Common Name FRAC # Disarm G fluoxastrobin 11

Headway G azoxystrobin + propiconazole 11+ 3 Hertiage G azoxystrobin 11

Insignia Intrinsic pyraclostrobin 11

- = – –

=

Relative Efficacy of New Fungicides Formulation for Cool -

Season Turf Diseases : 2012 (Golf)

0

* Efficacy on a 1 4 Scale, where 1 not effective, 2 = fair good control, 3 = good excellent control, and 4 = excellent

control. Limited insufficient data.

- = – –

=

Relative Efficacy of New Fungicides Formulation for Cool -

Season Turf Diseases : 2012 (Golf)

0

* Efficacy on a 1 4 Scale, where 1 not effective, 2 = fair good control, 3 = good excellent control, and 4 = excellent

control. Limited insufficient data.

Influence of Selected Fungicides on Brown Patch – Tall Fescue : Rutgers, 2011*

% d

isea

se /

plo

t

* Fungicides applied from June 10 to August 19, every 28d

Insignia SC -- pyraclastrobin

Honor -- pyraclastrobin & boscalid

Disease control and Improved Plant Health

- = – –

=

Relative Efficacy of New Fungicides Formulation for Cool -

Season Turf Diseases : 2012 (Golf)

0

* Efficacy on a 1 4 Scale, where 1 not effective, 2 = fair good control, 3 = good excellent control, and 4 = excellent

control. Limited insufficient data.

Summary

Strobilurins are excellent broad spectrum

fungicides

Further research is needed to document the

effect of strobilurins on turf health

– Greenhouse

– Field Studies

Use these fungicides for disease

control…………..any potential additional benefits are bonus