Integrated Disease Management:
For Fashion or Profit?
Robert Walker,
European Director,
Alltech Crop Science
Management
Integrated
Disease
Management?
?
Chemical
Technologies
Natural
Technologies
It’s about
Sustaniability
Economic
Social
Sustainability?
Environment
Let’s take a closer look at
1. MANAGEMENT
2. CHEMICAL TECHNOLOGIES
3. NATURAL TECHNOLOGIES
Management:
 Plant Variety
 Reduced Inoculum
 Disease Monitoring
 Microclimate - water, temperature, wind, …
 Management of Sub-Clinical Disease
 Other
Chemical Technologies:
 Fungicide Selection
 Dosage
 Timing
 Resistance
Natural Technologies:
Bio-Fungicides
Why integrate with
Natural Technologies?
 Fungicide Resistance
 Withholding periods
 Effect chemical pesticides on:
– Growth suppression & Phytotoxciticy
– Soil health: Rhizophere damage
“A good integrated
disease management
program will increase
yield and quality!”
Managing subclinical disease?
Disease
Clinical
Disease
(Visible)
Sub-Clinical Disease
(Invisible)
Time
Manage sub-clinical
disease:
 Healthier plants
 More energy available to the
plant to use for growth
 Better Yield and Quality!
Categories of
Bio-Fungicides
Predator
II. Competitive exclusion
III. Antibiotic
IV. ISR & SAR
I.
Predator species

Living micro-organisms that
kill plant pathogens
Competitive
Exclusion
 Beneficial living micro-organisms
that compete with plant pathogens
for the same resources.
Antibiotic

Natural substances that stop or slow
the growth of microorganisms
Rhizoctonia
Control
Procrop Shield
Pythium
Control
Procrop Shield
Pytophthora
Control
Procrop Shield
Sclerotinia
Control
Procrop Shield
Sclerotium
Control
Procrop Shield
Alternaria
Control
Procrop Shield
Table showing efficacy of Stubble-Aid at various concentrations Vs Common Pathogens
Pathogen
Minimum Inhibition Concentration of Stubble-Aid
Alternaria alternata
1 ml/litre
Fusarium o. f. sp. cucumerinum
>10 ml/litre
Macrophomina phaseolina
2 ml/litre
Phytophthora infestans
1 ml/litre
Pythium sp
2 ml/litre
Rhizoctonia solani
1 ml/litre
Sclerotinia sclerotiorum
>10 ml/litre
Sclerotium rolfsii
3 ml/litre
Verticillium dahliae
2 ml/litre
Penicillium italicum
5 ml/litre
Penicillium digitatum
5 ml/litre
SAR / ISR / Elicitors / Fortifiers
 Substances that induce the plant to defend itself
using its own natural defence mechanisms.
 Plants are primed prior to attack such that they
are ready for pathogen attack
 Systemic effect
• Maximal 9 days after induction
• Lasts for ± 21 days
• Need for continual applications
P
R
O
T
E
C
T
I
O
N
7-9
21
DAYS
Typical Berry Crop Protection Program
P
R
O
T
E
C
T
I
O
N
Chemical
Fungicide
Chemical
Fungicide
 Alternate Procrop ISR with ProCrop Shield
 Alternate with Regular pesticide program
Chemi.
Fungi.
DAYS
Cost of a Program that alternates
Natural with Chemical?

Same to lower price than “all chemical”
program
Benefits:






Withholding period
Reduced use of chemicals – long term
performance
Preventative program
Resistance
Post harvest quality
Thank You
Robert Walker,
European Director,
Alltech Crop Science
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Integrated Disease Management