TM
TM
Registered as a Fungicide for Botrytis Control in Grapes
Its main use is as an Adjuvant with other products to
improve Disease and Pest Control in Grapes
Protectorhml
What is it?
• Protectorhml is a pure potassium soap manufactured
from fractions of vegetable oils – it is not and does
not contain oil.
• Chemically it is a unique complex of fatty acids of
potassium salts. No two soaps act in the same way,
some may or may not be fungicidal, insecticidal,
herbicidal or soluble.
• Fatty acids are naturally occurring in plants and
animals. The fatty acids making up Protectorhml are
identical to those contained in wine.
TM
Protectorhml
Compatible with ?
•
•
•
•
•
Wettable Sulphur
Copper – hydroxide and oxide
Potassium bicarbonate
Seaweed and some fish extracts (not fish oils)
Several biologicals – note in most cases it is not
cleared by other manufacturers.
• Commonly used with Captan and other chemicals
- be aware of compatibility and alkaline
hydrolysis.
Protectorhml
Not compatible with ?
• Many trace element supplements, such as calcium based products
or products that contain nitrogen as a synergist/sticker.
• Many chemicals and/or the adjuvants or other additives contained
in them.
• There is about to be more information on the website. Hort
Research compatibility studies with sodium bicarbonate.
• Precautions to apply:Avoid compounds that are not compatible with alkaline materials or
suffer from alkaline hydrolysis.
Undertake a ‘jar’ test to check for flocculation or scum.
Do not leave any spray mix sit for long periods
Always rinse out spray tanks after use.
Protectorhml
Modes of action as an adjuvant
• Protector spreads its companion product better than the
companion product would under normal spray
conditions. (Slide 6)
• Protector when wet, gathers spores together. (Slide 8)
• Protector, as a potassium soap, provides some degree of
UV protection. (Numerous scientific articles on internet)
• Protector has its own fungicidal and fungistatic activity.
• Protector when it dries is not immediately soluble again
as it goes through a ‘gel’ state. It requires more than a
wet surface to move it off – acting as a sticker .
the spreading activity of Protectorhml
Example – Protectorhml and Sulphur
the spreading activity maths of
Protectorhml
Droplet spread areas from single droplet deposit tests (one 4 micro litre
droplet per plate)
Potassium
Sulphur
Protector bicarbona
g/l
te
nil
nil
nil
nil
nil
10
0.5%
nil
10
1
2.7
2.7
6.5
2
2.6
2.7
6.5
4 micro litre droplets on
1X each of 5 plates
30 sec to
deposit
30 sec scan intervals out to 2.5 min
from last deposit
Droplet
diameter
(mm)
3
4
2.9
2.7
6.4
2.7
2.7
6.3
5
2.7
2.7
6.4
Average
diamete Diameter
r
Std dev
2.7
0.10
2.7
0.02
6.4
0.08
Area/drop
mm2
5.8
5.7
32.2
Protectorhml – an anionic surfactant
microscopic surface photo - the gathering of spores (dyed blue)
Another Potassium soap with free vegetable oil
Microscopic surface photo – fungal spores (dyed blue)
Powdery Mildew Trials
(PM1)
Protectorhml + Sulphur or Copper
• 2005/06 - Verdelho block (2.4ha) decimated with Powdery
Mildew
• 2006/07 - Replicated Hand Sprayer Trial – 15 Treatments,
remainder of block DMIs and S
• 2007/08 - Machine Sprayed Trial – 6 treatments
• 2008/09 – Confirming with full vineyard trials in Hawkes Bay and
Gisborne
Hand Sprayed Trial 2006/07
Summary of Treatments
(PM2)
Untreated
Standard – Systhane (2)
+S
Standard – Impulse (2)
+Systhane + S
Protectorhml alone
Sulphur alone
Standard – Systhane +
Twist + S
Protectorhml 2% + Cu
(120/90/60/30 ml / 100 l)
Protectorhml 0.5% + S
(4/3/2 kg / ha)
Protectorhml + Cu and S –
alternating (2 rates)
Hand Sprayed Trial 2006/07
Results
Untreated
Standard – Systhane (2) + S
Standard – Impulse (2) +Systhane + S
Standard – Systhane + Twist + S
(PM3)
% Total Infected
Bunches
36.7
0
0.6
0
Protectorhml alone
Sulphur alone
3.6
3.0
Protectorhml 0.5% + S (4/3/2 kg)
0.4 / 1 / 0.2
Protectorhml 2% + Cu (120/90/60/30ml) 0.1 / 0 / 0 / 0.4
Protectorhml + Cu and S – alternating (2 0.1 / 0.3
rates)
Machine Sprayed Trial 2007/08
Protectorhml and Sulphur - Dates, Rates and Intervals
(PM4)
Powdery Mildew Field trial, Hawke’s Bay
Date of
Low Water Rate
Application
High Water Rate
Spray Interval
(days)
26 Oct 2007
150 l/ha
200 l/ha
13 Nov 2007
150 l/ha
300 l/ha
18
23 Nov 2007
200 l/ha
400 l/ha
10
11 Dec 2007
300 l/ha
600 l/ha
18
3 Jan 2008
300 l/ha
600 l/ha
23
Machine Sprayed Trial 2007/08
(PM5)
Results
Treatments
Low water
with 0.5%
Protectorhml
2 kg/ha S
3 kg/ha S
4 kg/ha S
High water 1.5 kg/ha S
with 0.5% 2 kg/ha S
Protectorhml
3 kg/ha S
Number of bunches infected
with powdery mildew
Sample size = 400 bunches
Assessment dates
27/12/07
8/1/08
23/1/08
0
1
8
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
Protectorhml and Copper
Powdery Mildew Trials –Hort Research Studies
(PM 6)
1997
1998
1999
Untreated
27.1
94
47.8
Protector and Copper
4.2
0
2.1
6.3
3
4.4
(Protector was 2%- botrytis studies)
Standard Treatments
Erinose Mite Control
(PM7)
Erinose mite was studied on the side of our powdery mildew studies.
Best control was achieved by an application of 7% lime sulphur to ‘run off’ on trunks and cordons at
‘woolly bud stage’ – between the growth stages of photographs, left and centre. In Hawkes Bay, only
once was required and no follow up was required the following season – in both trial and commercial
settings.
All treatments following ‘woolly bud’ suppressed rather than eradicated.
Erinose Mite control improves with increased
• Sulphur Rate
• Water Rate
• and the inclusion of Protectorhml
Summary of Protectorhml efficacy against botrytis (7 years)
A comparison of Protectorhml and standard Botrytis programmes
assessed at vintage. Values are the percentage of crop infected with Botrytis.
* data from 2002-03 seasons has not been statistically analysed
** full field rate applied at 750-1000l/ha (high volume) Figures in parenthesis are the
number of applications.
Late season efficacy of Protectorhml against Botrytis
Four applications of ProtectorTM (2%) were applied post veraison to vines at
the Lawn Rd
Research Centre, Hawkes Bay in the 2002-03 growing season to determine if
late season only applications reduced Botrytis bunch rot at harvest.
Key finding
· ProtectorTM was at least as effective as Captan and demonstrated late season efficacy
against Botrytis fruit infection.
Monowai Chardonnay Handspray after veraison
HML32 and others – Summary Fruit Composition
Monowai Chardonnay Handspray after veraison
HML32 and others – brix and yield comparisons