Protection of newgrowth with cyazofamid

Johan Desnouck & Jos Testers

Protection in growing phase

• Protection in the growing phase is one of the important challenges for the farmers. – Spraying on advise of the warning systems– Spraying with calendar fungicide programmes

• use of fungicides with a systemic active ingredient, e.g. Fubol Gold, Epok, Merlin, Consento,…

• use of non-systemic fungicides on a short interval

The growing period takes longer than only twoweeks

SMALL GROWING POINT

7 DAYS LATER

3 DAYS LATER

A leaf is growing,…

Development of leaves in one week

Interval in days

0 2 4 6 8 10

PART TO PROTECT PREVENTIVELY BETTER

100

80

60

40

20

ref: PPO LELYSTADT, Huub SCHEPERS

RETROACTIVE TREATMENT

PREVENTIVE CONTACT PRODUCT

UNPROTECTED GROWTH

Protection of the new leaves: strategiesINFECTION

Research ‘new growth protection’ with RanmanSAC 2006

PPO 2001

PPO 2002

PPO 2004

SPRV 2004

IWT 2002

IWT 2003

UK 2004

RC FLAKKEBJERG 2005

LWK NDS PSA OL 2004

LWK NRW PSA Bonn 2004

LWK NDS PSA OL 2005

DLR RP RNH 2006

Used dose rates

• Ranman Cyazofamid + Adjuvant 0.2 + 0.15 l• Epok Mefenoxam + Fluazinam 0.5 l• Shirlan Fluazinam 0.4 l (UK 0.3 l)• Ridomil Gold Mefenoxam + Mancozeb 2.5 kg• Curzate Cymoxanil + Mancozeb 2.5 kg• Tattoo C Propamocarb + Chlorothalonil 2.0 – 2.5 l• Dithane DG Mancozeb 2.0 kg• Sereno Fenamidone + Mancozb 1.5 kg• Unikat Pro Zoxamide + Mancozeb 1.8 kg• Tanos Famoxate + Cymoxanil 0.6 - 0.7 kg• Valbon Benthiavalicarb + Mancozeb 1.6 kg• Acrobat (Invader) Dimethomorph + Mancozeb 2.0 kg

IWT trial 2002G. Haesaert, B. Heremans Belgium

IWT TRIAL 2002% PROTECTED NEW GROWTH

0102030405060708090

100

7 DAT

UntreatedDithaneRanman Acrobat Plus Shirlan CurzateTanosTattoo CUnikat ProSereno

IWT trial 2003G. Haesaert, B. Heremans Belgium

IWT TRIAL 2003% PROTECTED NEW GROWTH

0102030405060708090

100

7 DAT

UntreatedDithaneRanman Acrobat Plus Shirlan CurzateTanosTattoo CUnikat ProSereno

PPO trial 2004

PPO Lelystad, 2004

0102030405060708090

100

UntreatedRanman Shirlan -UntreatedRanman Shirlan

% INFECTED NEW GROWTH

LAB TRIAL FIELD TRIAL

0102030405060708090

100

7 DAT

UntreatedRanman Shirlan Ref 1Ref 2Ref 3

% INFECTED NEW GROWTH

Growing Point leaflets inoculationin the field PPO Lelystad, 2004

PSA trial 2004Oldenburg 2004 Dr. J. Kakau

0102030405060708090

100

7 DAA T3

UntreatedDithane Ultra RanmanAcrobat Plus Shirlan

% infestation after one application

0102030405060708090

100

7 DAA T4

Dithane Ultra Ranman Acrobat Plus Shirlan

% infestation after two applications

Ranman Shirlan

Acrobat Dithane

Protection of new growth, PSA Oldenburg, Dr. J. Kakau 2004

Young leaflets after artificial infection 10 DAA

PSA trial 2005Oldenburg 2005 Dr. J. Kakau

05

101520253035404550

8 DAA

untreatedDithane UltraCurzate MAcrobat Plus ShirlanRanman

PSA Oldenburg, Dr. Kakau

DLR trial 2006Dr. Albert, Bad Kreuznach (D)

Protection of New Growth Dr. Albert, Bad Kreuznach (D)

0102030405060708090

100

% blight

untreated

Dithane NeoTecRidomil

Ranman

UK trial 2004

0102030405060708090

100

7 DAA

UntreatedRanman 0.2/0.15LShirlan 0.3LInvader 2.0kgMerlin 2.5LCurzate M68 2.0kgConsento 2.0LTanos 0.7kg

surface leaf inoculation% of leaves infected

SRPV trial 2004

surface leaflets (ABC) inoculation% area infected

0

50

100

Untre

ated

Shirl

an 0

,4 L

Epok

0,4

LRa

nman

0,2

/0,1

5 L

7 DAA

Growing Point leaflets (NP) inoculation% area infected

0

50

100

Untr

eate

d

Shirl

an 0

,4 L

Epok

0,4

LRa

nman

0,2

/0,1

5 L

7 DAA

DANMARK trial 2005Bent Nielsen,

Danish Institute of Agricultural Sciences, 2005

02468

101214161820

8 DAA

UntreatedRanmanRidomil GoldDithane NTShirlan

Trial Danmark 2005

Bent Nielsen, Danish Institute of Agricultural Sciences, 2005

Untreated

Ridomil Gold Ranman

Shirlan

SAC trial 2006

05

101520253035404550

4 DAT

UntreatedRanman Acrobat Plus Shirlan CurzateConcentoValbonInfinito

SAC: Infection in relation to fungicide and leaf surface - 4 dat

0

10

20

30

40

50

60

6 DAT

UntreatedRanman Acrobat Plus Shirlan CurzateConcentoValbonInfinito

SAC: Infection in relation to fungicide and leaf surface - 6 dat

05

10152025303540

10 DAT

UntreatedRanman Acrobat Plus Shirlan CurzateConcentoValbonInfinito

SAC: Infection in relation to fungicide and leaf surface - 10 dat

AVERAGE 2001-2006

Protection of the new leaves: average at 7 days

0

10

20

30

40

50

60

70

Shirlan

16x

Dithan

e 13x

Curza

te 10

xAcr

obat

12x

Tatto

o C 10

xCon

sent

o 3x

Seren

o 2x

Ridom

il 6x

RANMANREF

Protection of the new leaves: average at 7 daysRanman ‘systemic’ products

0

10

20

30

40

50

60

70

Tattoo C 10x Consento 3x Epok / Ridomil6x

RANMANREF

Conclusions

• Ranman gives an outstanding tuberprotection and is mostly applied at the end of the season

• Results conducted last 5 years in internal and official trials showed an excellent preventive protection of the new growth.

• The efficacy of cyazofamid applied during the period of fast growth was comparable or better than with the systemic or partly-systemic products.

Proposal: Ranman in the EU +++ table

Leaf blight +++ New growth ++? Stem blight + Tuber blight +++ Protectant +++ Curative 0 Antisporulant 0 Rainfastness +++

Thank you for your attention