H. Schepers, J. Grønbech Hansen & A. Lees

Late Blight situation in Europe and ongoing

projects

Epidemics and control of early & late blight,

2013 & 14 in Europe Jens Grønbech Hansen & Hans Hausladen

Late Blight Country Reports

Objective

Objective:

To provide an overview of the late blight seasons in Europe

Support of The EuroBlight Monitoring initiative, 2013-2015.

Improvement of DSS

Full Report in the EuroBlight workshop proceedings

Country Profile Editors (2014)

Editors

Country Name Belgium (Flanders) Pieter Vanhaverbeke

Czech Republic Ervin Hausvater

Denmark Jens G. Hansen & Bent Nielsen

England/Wales Faye Ritchie

Estonia Mati Koppel & Eve Runno-Paurson

Finland Asko Hannukkala

France Catherine Chatot

Germany Hans Hausladen & Jürgen Leiminger

Ireland Steven Kildea

Latvia Linda Bucena

Lithuania Antanas Ronis

Netherlands Kees Vogelar & Jan Spoelder

Northern Ireland Louise Cooke & Gillian Young

Norway Ragnhild Nærstad

Poland Jozefa Kapsa

Russia Alexey Filippov

Scotland Ruairidh Bain & Alison Lees

Slovakia Peter Vrabček

Sweden Bjorn Andersson, Erling Liljeröth & Eva Edin

Switzerland Tomke Musa Thank you for

information!

Late blight country reports -

Questions

EuroBlight Country Profile Data

Summary

Early outbreaks of potato late blight

Weather conditions and late blight development

Use of fungicides and control strategies

Tuber blight

Alternaria ssp

Characteristics of Phytophthora infestans

Use of DSS

+

First infections, 2014 = First attack = Attack in > 5 conventional fields

Date01-04 01-05 01-06 01-07 01-08 01-09

Norway

Finland

Lithuania

Czeck Republic

Estonia

Latvia

Russia

Scotland

Northern Ireland

Romania

Poland

Switzerland

Ireland

Belgium

Denmark

Sweden

England&Wales

Germany

Netherlands

France

Attacks in early potatoes

>5 fields attacked

1987

1988

1989

1990

1991

1992

1993

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

2012

2013

2014

2015

Sp

oru

latio

n h

ou

rs [H

SP

O]

0

200

400

600

800

1000

1200

Tre

atm

ent

Fre

quency index

0

2

4

6

8

10

June

July

August

September

TFI

Development in fungicide use, Denmark

1944: 2 * Bordeaux 1962: 2 * Dithane 2013-14: 8-14 * several types of fungicides

Use of DSSs

Belgium Improved Guntz-Divoux, GIS + surveillance

Czech Republic Negative prognosis, NegFry and NoBlight

Denmark Blight Management on web + APP

England & Wales Blight-Watch, Plant Plus and BlightCAST

Estonia Fieldclimate.com + Estonian Crop Research Inst.(13 met stat.)

France Mileos®

Germany PhytophthoraModel Weihenstephan, ISIP

Netherlands ProPhy, Plant Plus and Phytophthora App

N. Ireland DARD Blight-Net, and Plant Plus

Ireland Irish metrological service based on Bourke’s Laws

Norway VIPS

Poland Negative Prognosis, NegFry and ProPlant

Russia Plant Plus, VNIIFBlight

Sweden Plant Plus , DK Blight Management and NO VIPS

Switzerland PhytoPRE+2000, PhytoPRE Web App Service

Phytophthora APP

EuroBlight P. infestans monitoring 2013-15

± 750 samples

EuroBlight Fungicide table

Late and early blight

Ratings for different characteristics

Quantitative ratings for leaf & tuber blight

● EuroBlight trial protocol

Qualitative rating for other characteristics

Research + agrochemical companies in DE, DK, UK & NL

EuroBlight Fungicide trials

22

Primary attack Foulum, 1988

Milder winters - Volunteer plant 2015, Foulum

Sexual recombination = high diversity / adaptation + oospores Earlier attacks, most likely from oospores Early attacks on resistant starch potatoes (e.g. Kuras) More aggressive isolates (Blu-13), fungicide resistans ”False crop rotations” due to volunteers survival during winter Structural changes in agriculture (less farmers with more fields)

Oospores 2014 Denmark, Foulum

>1997

Increased fungicide use, from 5 in 1990th to 10 in 2010-15

The enemy (Denmark)

Defence weapons Primary attack Volunteers Dumps Oospores

• Healthy seed and crop rotation • Breeding & inclusion of new resistance genes • DSS and control strategies (Fungicides: timing, type og dosis) • Mapping of the pathogen on population level. Link between genotype and phenotype • Surveillance (Scouts: when and where is the disease, how much, disease activity etc.) • Strategic, tactical and operational planning and missions

WP 1 – sampling and genotyping P. infestans populations

WP 2 – phenotyping P. infestans

WP 3 – developing improved LB DSS – IPM 2.0

WP

0 –

co

ord

inat

ing

and

dis

sem

inat

ing

IPM

Blig

ht

2.0

Isolate sampling & Reference isolate collections

Aggregated data on individual isolates

Field monitoring of virulence

Data management and analytic tools (e.g. poppr)

New DSS simulation models/ modules

Papers and conference presentations

Website

Potato Late Blight Toolbox

Genetic (SSR) fingerprints

Ad

viso

ry B

oar

d

Existing DSS improved and tested

Fungiciode resistance testing

Stakeholder interaction

Thank you for your attention