Tuesday, July 26, 2011

Changes to AWRI Dogbook - What do they mean for you?

Significant changes to the 2011/2012 'Dog Book' as of 26/7/2011.

1. New active constituents

Altacor

Altacor has been granted registration by the APVMA for control of Lightbrown Apple Moth and Grapevine Moth in grapes.

Altacor is a useful product for early season control of LBAM. It contains the active constituent chlorantraniliprole which is a group 28 insecticide.

Restriction on use for export grapes: Use no later than 80% Capfall.

ParaMite

ParaMite has been granted registration for control of Two-spotted Mite in grapes.

Restriction on use for export grapes: Use no later than 30 days before harvest.

This is not likely to be used by grape growers in southern South Australia as Two-spotted Mite is not a pest species in our regions.

Vivando

Vivando for control of Powdery Mildew in grapes.

Vivando is a CropCare product. It contains the active constituent metrafenone which is a group U8 fungicide.

Restriction on use for export grapes: Use no later than 80% capfall.

Vivando looks to be a useful product for early season powdery mildew control and compliments the other products that are available for early season control.

Revus

Revus has been granted registration by the Australian Pesticides and Veterinary Medicines Authority (APVMA) for control of Downy Mildew in grapevines.

It contains the active constituent mandipropamid which is a Group 40 fungicide. It is a different group to other Downy Mildew protectant like Copper or Mancozeb.

Resistance management strategy: DO NOT apply more than 3 sprays of Revus per season.

Restriction on use for export grapes: Use no later than E-L growth stage 26 (cap-fall complete).

Revus
is considered to be an effective Downy Mildew protectant. Supplies are limited this season, but it looks a useful product going forward into the future.


2. New active combinations

Broadway

Broadway has been granted registration for control of a variety of weeds in vineyards. It contains the active constituent glyphosate (present as the isopropylamine salt) and carentrazone ethyl which are Group M and G herbicides respectively.

Broadway is a custom mix of Glyphosate and the spike Hammer/Spotlight.

3. Old active with new target

Filan

Filan has been granted registration by the APVMA for control of Powdery Mildew in grapevines. However it is not recommended to use as a Powdery Mildew product on its own.

Restriction on use for export grapes: Use no later than 5% capfall (E-L growth stage 19-20). Do not apply to any set berries.

PARAFFINIC OIL

BioPest has been granted registration for control of Powdery Mildew in grapevines.
BioPest is a mineral oil product.

Restriction on use for export grapes: Use no later than 80% capfall. This early WHP limits the usefulness of this product.

DUSTING SULFUR

Two dusting sulfur products are listed for Powdery Mildew control.
Restriction on use for domestic and export grapes: Use no later than 12 weeks before harvest.

Visit the AWRI here.

Monday, July 25, 2011

McLaren Vale Pruning Championship.


The competitors lined up for the first heat. Each competitor had to prune three panels of vines as quickly as they could. These vines were then checked for accuracy and a five second penalty was given for each mistake.

It was a good social occasion and a great way to reward the people who work behind the scenes to make the McLaren Vale wine industry what it is today.


Our judges for this years event were Lyndon Elliott & Fred Osmond each with 50 years of experience. Derek Cameron acted as their assistant.

Pruning Competition Rules
1. Two-Bud Spurs Only,
2. Clean cuts, no 'butts',
3. No damaged spurs,
4. Upward pointed spurs where possible,
5. Spacing important without being necessary,
6. Wire and vine clean of prunings,

Pruners time = Time taken to prune three panels + 5 seconds added for each mistake.

The event was last run c. 1972 and has a long history going back to the 19th Century. Lyndon Elliott's father was a winner of the event in the 1940's.


Congratulations to this years winner of the McLaren Vale Pruning Championship, Jeremy O'Donald (above). Jeremy won, both his heat and the final, with his combination of speed and accuracy. Jeremy's adjusted time was 9:15. He only made ten faults.


In second place was 'Guri' who is part of the contractor gang run by Peter Ifould. Guri was a very energetic competitor and a very quick pruner. His adjusted time in the final was 9:35.

Daniel Wright powered home to third place with a time of 10:10.

Above - Phil Rayner and Andrew Tuck help clean up some vines.

You can see a full gallery of pictures on the DJ's Facebook site.

Thursday, July 21, 2011

2011/12 Bud Dissection Summary

Matt Wilson has prepared these summary graphs of bud dissection data from our work this winter.

Bud dissections are a good tool in looking a vine health, and give us the first insight into the likely bunch numbers next harvest.

Summary Adelaide Hills and Fleurieu.

SUMMARYAdelaideHills&SouthernFleurieu2011

Summary of McLaren Vale.

SUMMARYMCLarenVale2011

Summary of Red Grape Varieties.

SUMMARYAllGIRed2011


Summary of White Grape Varieties.

SUMMARYAllGIWhite2011

Monday, July 4, 2011

McLaren Vale Hail Storm - UPDATE 4/7/2011


McLaren Vale was hit by a severe hail storm in the early afternoon of the 4th of July. Large hailstones fell all across the region, with the western edge of the town having very large stones and ice falls littering the ground.




We feel sorry for the pruners who got smashed by this hail on Rivers Lane. Luckily it looks like the vineyards were already deserted.

The hail also continued into the Adelaide Hills Wine Region. This picture of the K1 by Geoff Hardy Cellar Door looks as if it has snowed.