di Petra SELZER, Benjamin PEROTIN & Mario BERTOLI A cura di DuPont - International Wine Grape Symposium. Lazise, 6 aprile 2011

1. Fungicide DuPont
portfolio for grapes
- Biological attributes of Talendo™
- Kocide® products, an optimized formulation technology
International Wine Grape Symposium
Lazise, April 6th 2011
Petra SELZER, Benjamin PEROTIN & Mario BERTOLI

2. Proquinazid - Talendo™
The best standard for controlling grape powdery mildew
Composition : 200 gr/l Proquinazid
Family: Quinazolinones
Formulation : EC O
I
Use on grapes : Powdery mildew (Uncinula necator) N
PHI = 28 days N O
Dose s.a./ha : 40-50 gr active ingredient (200-250 ml/ha formulated product)
Mode of action : preventive activity: inhibits spore germination, formation of
appressorium and impacts spore viability

3. Talendo™ inhibits spore germination and formation of
appressorium
At normal application rates, Talendo™ inhibits spore
germination. But even at lower concentrations, Talendo inhibits
development of appressoria necessary for infection.
mature appressorium appressorium development
inhibited
untreated Talendo™

4. Talendo™: effect on spore viability
Spore viability of U. necator after fungicides treatment
100%
90%
80%
% of infected leaf area
70%
60%
50%
40%
30%
20%
10%
0%
Water Untreated Talendo™ Quinoxyfen Metrafenone Tebuconazole
. . .
Talendo™ has important effect on spore viability, which plays important
role in breaking disease epidemics

5. Local systemic movement of Talendo ensures thorough
coverage and protection of leaves and bunches
Control of grape powdery mildew on the acropetal and basipetal
zones from systemic movement of fungicides applied to zone A
untreated Talendo™ contact systemic
standard standard

6. Vapour phase activity
Inoculation after 1 day
Treated
pot

7. Talendo™’s local vapor activity shields treated
and untreated foliage, penetrates into bunches
and protects new growth
Although strongest immediately after application, Talendo™’s vapor
activity continues to shield treated and untreated foliage and fruit
from mildew infection up to 20 cm from the point of application
0 hours 24 hours 48 hours

8. Talendo™: a very good redistribution in grapes
for an excellent and long lasting performance
Performance on powdery mildew
Outstanding preventive activity
Action on spore viability, breaking disease epidemics
Very good redistribution and protection of
plant:
- Local systemic movement
- Translaminar activity
- Vapor phase effect
- Protection of new growth
Compensation of problems of spray quality
Long lasting effect, on both leaves and bunches

9. Kocide® products,
an optimized formulation technology

10. DuPont Kocide®, an efficacy confirmed year by year
Wine grape downy mildew: % control on bounches
Average 4 trials DuPont 2009-2010 (North-East Italy)
Untreated = 61,3% severity on bounches
100%
93,1% 92,8%
90%
89,4%
80%
70%
60%
Kocide Opti 30% Kocide 2000 35% Copper Sulphate 20%
150 g/hl 200 g/hl 600 g/hl

11. Kocide® technology evolution
Copper products: chemically and biologically distinguishable
Chemical transformations required to release copper ions
Copper sulphate Copper oxychloride Kocide®: copper hydroxide
(Ca(OH)2) CuSO4 3 Cu (OH)2 Cu Cl2 Cu (OH)2
CuCO3, Cu(OH)2
Cupric chloride
Direct release
Cu Cl2
Copper hydroxide of copper ions
Cu (OH)2 (100%)
Cu ++
Cu ++
Copper hydroxide: form of copper in which possess the highest available
copper ions Cu++ (the biologically active form of copper)

12. Kocide® Opti delivers the highest amount of copper ion (Cu+2, the
biologically active form of copper), while preserving plant safety
Soluble copper into spray tank
Product (ppm)
Kocide® 2000 65
Kocide® Opti & Kocide® 3000
(GX569 tecnhology) 179
Copper oxychloride WP 6
Bordeaux Mixture 2
Copper hydroxid standard 1 30

13. Kocide®Opti Copper Copper Copper
sulfate oxid hydroxid
Products and soluble copper in the spray tank after dilution
Nozzle
Clogging
Foaming
Suspensability
Inductively coupled plasma spectroscopy with atomic emission detection (ICP/AED)
Superior
Acceptable
Superior
Inferior
Middle
range
Inferior

14. Gravimetric Measurement of Dustiness of Copper Products
Kocide® 3000
Copper
Kocide® Opti
Oxicloride 1
Copper Oxide Copper
Oxicloride 2
International standard assessment of dustiness
Category Dust gravimetric collection (mg) Interpretation
1 0 - 12 nearly dust free
2 12 - 30 essentially non dust
3 > 30 dusty

15. Granule hydrophylic characteristics
Granule properties into solution
Product Wetting Break up Self Dispersion
Kocide 2000
Kocide Opti
Copper hydroxid 1
Copper sulfate
Copper hydroxid 2
Copper oxychlorid
Copper oxid
Granule Properties Measured
Wetting How fast granules are attracted to water
Breakup How fast granules disintegrate once they are in the water
Self-Dispersion How fast dispersion distributes in water without agitation
Legend Fast
Medium
Slow

16. Kocide® products formulations attributes
Superior quality WG formulation: optimum dispersion,
stays in suspension longer
Low foaming during mixing
Low dust of product during handling

17. New
candidate of
DuPont
technology
and research
for DM
control
Standard 1 TNT

18. Grazie per l‘attenzione!
Vielen Dank für Ihre Aufmerksamkeit!