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Program July 27th_ 09

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Program July 27th_ 09 Powered By Docstoc
					                  Major Sponsor

“Course on spray droplet: measurement;
 delivery; drift; adhesion, and uptake”
         Venue: DPI, Attwood, Melbourne

 Organised by GITN, Geelong [a non profit organisation]

     Wednesday 7th and Thursday 8th October 2009


                     Program
                 Bought to you by
             Spray Smart Enterprises
                       and
         Grains Industry Training Network
The course will :
  1. provide an update on the status of national/international protocols relating to
     the measurement of droplet spectra and how they may affect spray
     classification and proposed APVMA drift models in Australia

  2. review ways to estimate drift from boom sprayers in different countries and
     outline how they differ

  3. present fundamental information on target structure, to the micro level, and
     advise how this may influence efficient effective product delivery

  4. supply information on the basic factors that influence droplet adhesion and
     reflection and suggest ways that each can be manipulated

  5. outline the range of droplet deposit structures which can occur and suggest
     which is most appropriate for different product types on different targets to
     maximise efficacy

  6. review current knowledge on uptake routes and how they could be used to
     influence product delivery and efficacy outcomes

  7. detail ways of measuring the physical parameters of spray liquids and suggest
     ways in which they can be manipulated to maximise retention, deposit structure
     and uptake

  8. demonstrate ways to select nozzles, and more efficiently screen for deposit
     structures, drift, efficacy, and rainfastness.

  9. not be an academic “talk fest” but a practical update on a complex topic.
     The underlying agenda is to suggest ways to improve assessment
     techniques to enable more robust biological and sound environmental
     outcomes. See attached course outline for more details.
     A two day course on spray droplet: measurement,
           delivery, drift, adhesion, and uptake
            Dates Wednesday 7th and Thursday 8th October 2009
                   Venue: DPI, Attwood, Melbourne
       Cost $750 per person includes all meals and dinner on
             Wednesday evening at the Attwood Motel

                   Programme – Wednesday 7th October
09 00 to 10 00    Registration and morning tea

10 00 to 10 30    Major Sponsor: GRDC Speaker
                  Setting the scene - Harry Combellack, Spray Smart, Enterprises, Maiden
                  Gully, Victoria
                  Overview the reasons for and structure of the course

10 30 to 11 15    Droplet measurement – Gary Dorr, CPAS, University of Queensland,
                  Gatton and Dr David Nuyttens, Merelbeke, Belgium
                  Overview differences in available measurement systems; consider why there
                  are differences in outcome when measuring spectra/velocity and explain how
                  such differences can be overcome; present representative data on
                  spectra/velocity for commonly used nozzles; discuss the merits of spray
                  quality and the status of its adoption in Australia and overseas; indicate the
                  effect of spray liquid used on outcome; review the status of ISO and other
                  standards on droplet measurement procedures

11 15 to 12 00    The APVMA Spray Drift Model – Dr David Loschke, APVMA,
                  Canberra
                  Reasons why the public continue to be concerned about pesticide drift; detail
                  recent regulations to minimize pesticide drift; outline key inputs required for
                  the proposed drift model

12 00 to 13 00    Sponsor: GRDC
                  Factors which most influence droplet drift - Dr David Nuyttens,
                  Merelbeke, Belgium
                  Overview of the fundamental causes of droplet and vapour drift; evaluate the
                  effect of different spray application factors on drift; discuss the relevance of
                  drift to political decisions on pesticide use in EU; outline models developed in
                  Belgium and methods used to measure drift; critically assess the merits of
                  different drift assessment methods and models; outline drift regulations in
                  northern hemisphere; comment on the effectiveness of implemented drift
                  regulations; outlines where ISO “drift” standards and procedures are at.

13 00 to 14 00    Lunch
                     Programme – Wednesday 7th pm


14 00 to 15 00   Target structure of plants. Neil Hallam, Hon Assoc Prof at Biological
                 Sciences Monash , Flinders Consultancy Services :Flinders
                 Describe the structure of leaves and stems; explain the variation in wax
                 structures for a range of plant species and between upper and lower plant
                 surfaces; illustrate the theory of wax deposition and how it varies with
                 environmental conditions; outline the chemistry of wax composition and how
                 it differs between wax types; explore the range of trichomes forms that exist;
                 overview differences in stomata size and numbers on upper and lower
                 surfaces; delineate the role of silicates and the plants on which it occurs and
                 predict how their presence may influence uptake.

15 00 to 16 00   Mechanics of impacting droplets and how they affect droplet adhesion.
                         Harry Combellack, Spray Smart Enterprises, Maiden Gully, Vic.
                 Describe the physical changes to a droplet when it impacts on a target; outline
                 the factors which govern whether the droplet adheres or is reflected; delineate
                 the interaction and plant surface structure on droplet adhesion; describe how
                 to measure contact angle and discuss its importance in predicting adhesion;
                 present data on differences in retention between cultivars of the same species.

16 00 to 16 30          Afternoon tea

16 30 to 1700    Open discussion on day’s sessions.

                 Combellack, Loschke, Hallam, Nuyttens and Dorr


19 00 to 22 30   Dinner Attwood Motel




            Major Sponsors will be Keynote Speakers
                 Programme Thursday 8th October
                 .

0900 to 0930     Altering the physics of spray solutions - Andrew Kirby, Huntsman,
                 Melbourne
                 Outline the methods used to measure key physical factors such as equilibrium
                 and dynamic surface tension as well as visco and elongational viscosity;

0930 to 10 15    First concurrent session [Sponsor Level 2 (2) see below]

10.15 to 11.00   Second concurrent session [Sponsor Level 2 (3) see below]

11.00 to 11.30   Morning tea and trade display [Sponsor Level 2 (4) see below]

11.30 to 12.15   Third concurrent session [Sponsor Level 2 (5) see below]


12.15 to 13.15   Lunch/trade display

13 15 to 1345    Importance of cuticle topography and formulation on deposit structure.
                 Harry Combellack, SSE, Maiden Gully, Vic.
                 Review published data on the effect of formulation on droplet spread; identify
                 factors which influence deposit spread and resulting deposit structure
                 including interaction between surface topography, structure and addition of
                 adjuvants and salts; delineate the relationship between form of deposit and
                 efficacy for contact, hydrophilic and lipophilic pesticides.

13 45 to 1415    Transfer of actives across cuticles and into transport systems Prof.
                 Chris Preston, Adelaide University, SA
                 Describe the current knowledge on lipophilic and hydrophilic pathways
                 across the cuticle; suggest ways in which uptake rates can be altered

1415 to 1515     Open Forum: Sponsor Level II [5]
                 Predicting ways to improve outcomes and identifying knowledge gaps. -
                 Combellack, Hallam, Nuyttens, Kirby and Preston

1515 to 1545     Workshop Summary. Where to from here – future directions.
                 Harry Combellack

15.45            Tea and close
                             Concurrent Practical Sessions

Session A    Nozzle availability and selection [Sponsor Level II (2)]
             Peter Alexander, Teejet Australia, Graham Betts, Ask GB, Toowoomba
             Overview nozzle choice and maximal operating parameters for different nozzle sizes
             and types for different product/ target types and locations. Demonstrate the spray
             quality of different nozzle types and how it varies with operating parameters.
             Demonstrate the value of patternators and the value of CV. Discuss the effect of
             spray physics on droplet size and patternation.

Session B    Droplet retention and drift. [Sponsor Level II (3)]
              Harry Combellack, Dr David Nuyttens , Craig Day, Spray Safe
              Demonstrate the differences in retention for a selected range of plants and nozzles.
             Spray plants with smooth or crystalline wax surfaces with a fine, medium and coarse
             spray using a visible dye in water Add a non ionic and oil based adjuvant to
             demonstrate another variable in spray retention. Reiterate the methods used in wind
             tunnels to include a practical demonstration how to assess potential products [nozzles
             or adjuvants] using a simple fan and crude small wind tunnel. Demonstrate how
             rainfastness can be predicted using simple experiments

Session C.    Target structure and how it affects droplet spread and deposit structure.
              Neil Hallam and Andrew Kirby [Sponsor Level II (4)]
             Using selected species, with smooth or crystalline wax surfaces, plus or minus
             trichomes, demonstrate how the surface structure influences spread following
             addition of appropriate adjuvants, non ionic, organosilicones or oils, influence.
             Delineate the sort of physical parameters of spray solution required to effect changes
             to deposit structure; explain how DST and EST are measured. Follow the life of the
             droplet until the structure of an included dye is noticeable. Discuss the merits of
             deposit structure on uptake.
 Registration for A Course on spray droplet: measurement; delivery;
                     drift; adhesion, and uptake

First Name……………………………………Surname………………………………..

Organisation…………………………………………………………………………..

Contact details

Telephone ……………………………………Fax.…………………………………….

Email ………………………………………………………………………………….

Address. ……………………………………………,………………………………….

……………………………………………………….Post Code……………………….

Please list any special dietary requirements

………………………………………………………………………………………….

Registration and payment must be received by 9th October, 2009

Payment can be made by:-
Cheque to made out to GITN, and posted to Nickie Berrisford PO Box 103 Geelong 3220
or
Direct Debit GITN BSB 083646 Account 56 713 6814 use your business name as a reference.

A Receipt will be provided to you on receipt of payment.
Please contact Nickie if a Tax Invoice is required by your organisation.

For further information contact
Nickie Berrisford, Executive Officer, GITN
PO Box 103, Geelong 3220

Telephone 0352264075 0428622655 or Fax 03524725
Email nickie.berrisford@dpi.vic.gov.au

Accommodation can be booked at Attwood Motel 0393332200, where
the Tuesday evening dinner will be held. Cost $120 single and $145
double.

				
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