Monthly Archives: February 2014

Dealing with heat stress this summer- November 2013

TUESDAY 12TH NOVEMBER 

TURFCHAT EPISODE 4 –  WORKING OVERSEAS CLICK ON LINK FOR MORE INFORMATION

 

 

Feel free to contact me with if you would like to come on turfchat for this episode or future episodes.

 

 

 

Don’t forget that we are hosting a morning with Dr John Kaminski from Penn State University All information can be found at 

 http://campbellturf.blogspot.com.au/2013/10/a-morning-with-dr-john-kaminski.html

 

 

Following on fromTurfchat Australia which can viewed here….

http://turfrepublic.com/2013/09/04/turfchat-australia-episode-3-updates/



DEALING WITH HEAT STRESS

 

I have posted some discussion we pointed out during the show as well as a few other points that will help all turf managers with heat, disease and drought stress this summer.

 

  • Start with a strong foundation early.
  • Review what you did last year and change what did not work.
  • Increase root health Use root stimulants such as kelp, amino, humic fulvic acid products
  • Look at your irrigation practices- This will be harder as the summer goes on especially when your cool season grasses are stressing out with a shorter root system. Keep the soil moisture consistent as not to stress our turf. There is no right or wrong method here but the aim is to get desired turf conditions (as Dr. Micah Woods says). (This is where soil mositure metres come in very handy- more on that in a future post). For an expalnation on water irrigation management have a look at the picture below from Micah Woods at the Asian Turfgrass Centre For more information on this work below see this link to his blog post.

 

 

 

 

As well with this point I’ve already heard of some leaf diseases, moss, algae and pythium coming up which may sound strange with the dry weather in NSW, SA and QLD and constant wet in Vic. However with watering in these conditions you can create the disease from over watering, humidity. With turf being stressed and thinning out don’t be surprised to see moss or algae in those areas. We have been seeing this in some trial plots as well this summer in Sydney.

 

  • With warm season grasses protect your turf early on as the root system is still not fully active.
  • Do a preventative fungicide and insecticide program. (if anyone would like a program designed for them please contact me). Under stress conditions some systemic fungicides may take longer to be taken up as the plant will not be fully functioning properly so be wary of this and apply fungicides on a prevention basis.
  • Have a wetting agent program and start earlier rather than later
  • Increase your height of cut. This will go a long way to help manager all types of stress with minimum disruption to greens speeds.

 

 

What does this season hold for us. Well the November to January quarter looks slightly drier and significant warmer for most parts of Australia.


Probability of exceeding median rainfall - click on the map for a larger version



Probability of exceeding median maximum temperature - click on the map for a larger versionProbability of exceeding median minimum temperature - click on the map for a larger version





Significant rain is expected this weekend along the eastern states so if you haven’t got a spray out yet get one out when you can to stop any infection.

 

 

 

Take care everyone and talk soon

 

Nadeem Zreikat













Dr John Kaminski seminar review December 2013

 

 

 

 

On Thursday 19th December about 50 turf managers and industry representatives attended the Dr John Kaminski turf seminar presented by Colin Campbell (Chemicals) Pty Ltd.

 

Dr Kaminski spoke on the following topics:

  • Disease managment & plant health
  • Pythium
  • Anthacnose
  • Thatch Collapse
  • Social Media (to contact Dr Kaminski find him via twitter @itweetturf)


John presented some interesting points and by all accounts the delegates took something back to their facility that they could implement the next day. One of the big things that I tweeted out was that the need to monitor your turf and keep looking at it up close especially during the peak stress times so you can prevent issues from getting bigger than they have to.

 

As well .an interesting point was raised on getting soil pH testing in different parts of the profile as a normal soil test gives you a reading from the hole sample a test at different soil depths can have different readings and can impact your turf quality.


For more information on the points of the day please feel free to see www.twitter.com/campbellturf

 

I would like to thank the NSWGCSA and STA NSW for contributing and helping with the day without assocaitions like this we cannot have the calibre of speakers like Dr Kaminski. Please visit their sites to sign up as members. For those who require AGCSA accrediation points your detials have been sent to the AGCSA.

 

To the staff at St Michaels Golf Club thank you for being so easy to deal with the day went off without a hitch and to Russell and the course staff who presented a beautiful backdrop.

 

Lastly thank you to all those who came to the day I hope you got out if it as much as I did. I know some of you travelled from interstate to be there and I appreciate you for making the effort especially those who made it just for the day. (By the feedback I got later that day and this monring everyone enjoyed the day).

 

For those reading this blog for the first time thank you and I hope you enjoy it. Feel free to browse past posts of mine.

 

I will be moving the blog shortly to our new website which has been recently been redesigned and updated with all labels and MSDS can be found at:

 

I will be having more content in the future on the website with videos brochures and general turf information.

 

Lastly I hope everyone had Merry Christmas and have a happy new year from everyone here at Colin Campbell (Chemicals) Pty Ltd Thanks for all the support over the year and I hope this blog has helped you with your turf management. I hope to see you all next year again whether it is at your facility or at one of the many education/trade shows we will be at.

 

Cheers

Nadeem Zreikat

 

 Below are pictures from the Dr Kaminski day:

 

 

 Thanks to NSWGCSA and STA NSW for helping out on the day

 

 

 

 The Victorian guys with John Mark (K&B Adams) Chris (Keysborough) John and Colin (Flinders)

 

 Questions were a plenty for John.

 

Myself and John below

 

 

 

 

 

 

 

Facts about Colin Campbell (Chemicals) Pty Ltd October 2013

 

 

For some of my readers you know who we are and where we came from. With an increasing readership of this blog and many of you reading this outside of Australia I though I would give you a quick history on our company.


HISTORY & INNOVATIONS


The company started back in 1940. We initially had products for horticulture markets, mainly in apples and pears. We then satrted to expand our range and from the 1960’s we started offering innovative products dedicated to turf management. 


These days we sell a wide range of products in horticulture and turf. We also offer a range of post harvest protection products for citrus, cherries, grapes, vegetables, potatoes and apples as well.


Our products are either made locally or are sourced from reputable suppliers we have been dealing with for quite sometime from US, Japan and Europe. In fact we have some partnerships  with suppliers that have spanned over 40 years.


Some of the well known achievements of Colin Campbell (Chemicals) Pty Ltd turf divisions has been

 

  •  Introduced mancozeb to the turf market

 

  • First liquid thiram (this is taken for granted now as before the late 80’s thiram in a liquid was very difficult to formulate as a stable product)
  • Developed 3 way herbicides in Methar Tri Kombi and Sportsground which are still just as reliable today as they were back 30 years ago.
  •  Introduced Pennside in 1985- microencapsulated diazinon inseciticde which was not only effective but gave longer residual and safety benefits over any other insecticide available at the time. This was the first microencapsulated insecticide introduced to Australia.
  • Devloped Tru blue the first acid dye spray indicator to be widely used in turf management

 

  • In 1971 we introduced Daconil (chlorothalonil) into Australia and continued to reformulate the product from a powder to a liquid in the 80’s and 90’s but always keeping the essence of broad spectrum disease control and superior sticking capabilities. Since 2003 we have changed the name to Dacogreen 720 and most recently in 2009 developed Dacogreen WeatherShield formulation which utilises the original source of the active ingredient  and superior surfactants to give even better sticking capabilities and results on a wide range of diseases

 

  • 2002 introduced propamocarb to turf as Proplant- the strongest pythium fungicide that has both preventative and curative propertites
  • In 2009 we introduced Blazon spray indicator technology to a wider market in Australia. Blazon is a non-staining polymer colourant that does not stain your skin, equipment or turf like acid dyes can. As we say “No more looking like a smurf”
  • Introduced Monstar (flutolanil) on permit for fairy ring control in 2011 Further work is being carried out for registration on fairy ring and Rhizoctonia.

 

PRODUCT DEVELOPMENT

 

Here at Campbells we pride ourselves in bringing the highest quality products to the turf industry. We test all products stringently before bringing the product to the turf market. Chemicals obviously have to be registered with the APVMA and many trials have to take place. We have experienced staff to do this or use outside contractors who have specific expertise in turf trials and with whom we have established long term relationships. Even when using contractors to do the trials we still conduct some of the trials ourselves to know the products inside out and test them in various climatic conditions.

 

Other products in our range that do not have to be registered are still evaluated with numerous trials. We use overseas data and claims as a starting point for our trial work to test the product.We DO NOT introduce an overseas product without the necessary testing under Australian conditions.

 

We make sure the product we are evaluating: 

  • Works 
  • We determine a rate or different rates to get the best possible result
  • The product does what it is meant to do
  • The product does not have any phytoxicity issues or non target issues
  • Test the limitations of the product
  • It lives up to the standard you expect from us. 

 

We do not take any short cuts. For instance here is a product we evaluated at various rates on both dormant couch and bent grass. We used what the overseas label recommended and other rates to see which rate would suit Australian conditions.As you can see the US rate did not work and we had to use the higher rate to be able to see a result.

 

 

 

 

 

 

 

 

 

 




WHAT THE FUTURE HOLDS FOR CAMPBELLS

 


We have a few products under devlopment in turf as well as horticulture. As you know we have been devloping Monstar (currently on permit) to gain full registration for fairy ring and Rhizoctonia. We are also evaluating a few products we have been initially testing from our horticulture side (this is great to do since we do those trials as well). I of course can’t say much more but be assured we are working to bring innovative technologies (both chemical and sustainable) and new ideas to the turf market. We have been committed to the industry for the last 55 years and will continue for a long time to come.

 

If there is anything I can help you with in regards to pest and diseases please do not hesitate to conact me via the links below.

 

Regards

 

Nadeem Zreikat
Colin Campbell (Chemicals) Pty Ltd
Phone: (02) 9725-2544 Fax: (02) 9604-7768

zreikat@campbellchemicals.com.au
www.campbellchemicals.com.au
Follow our turf division
www.twitter.com/campbellturf
http://campbellturf.blogspot.com/

 













Dacogreen WeatherShield- superior sticking capabilities – October 2013

In 1971 Colin Campbell Chemicals introduced chlorothalonil into the Australian turf market giving us over 38 years experience. From the initial formulation as a wettable powder, then into a SC (suspension concentrate) and now to the brand new WeatherShield formulation we have always continued research and development into chlorothalonil giving us insight into the working and benefits of this broad spectrum fungicide.

Dacogreen WeatherShield is an evolution of the original Dacogreen (chlorothalonil) formulation that been the basis of broad spectrum disease control in the turf industry.

“WeatherShield Technology™”
Dacogreen WeatherShield is a superior surfactant technology.  This technology allows for:

● Improved sticking capability

● Smaller particle size (reduced from 3.5 to 2.5 micron) that spreads evenly for turf protection 

● Improved rainfastness over the original Dacogreen 720

● Superior rainfastness over generic chlorothalonil formulations

 

Two trials were conducted on cucumbers to observe coverage and rainfastness of the following chlorothalanil based products:

  • Dacogreen 720 SC (original formulation)
  • Dacogreen 720 WeatherShield
  • Generic 1 chlorothalonil and 
  • Generic 2 chlorothalonil


Cucumber leaves were chosen for the trial as product retention results could be measured more easily than turf leaves. Three replicates were performed for each product

Trial 1 measured the retention of chlorothalonil after simulated rainfall of 40mm of rain over a 2 hour period 1 hour after application. Note, that with this trial the leaves of the plants were not totally dry before rainfall occurred due to slow drying conditions.

 

Trial 2 measured the retention of chlorothalonil after simulated rainfall of 40mm of rain over a 2 hour period 24 hours after application.  In this instance the leaf of the plant was totally dry before rainfall occurred.

 


 

 

 

In both trials Dacogreen WeatherShield and Dacogreen original out performed Generic 1 and Generic 2 chlorothaolnil formulations easily for retention of product with more than double the retention. What this means is that using Dacogreen WeatherShield enables you to be confident that Dacogreen WeatherShield will still give you the results desired even with the onset of rain soon after application.

 

So next time choosing a chlorothalonil product for a broad spectrum disease control have a think about what you are getting.

 

Dacogreen WeatherShield is registerd for use in Australia at the following rates 

for 

 

Dollar spot,

13L-20L per hectare

 

Brown patch (rhizoctonia) 

13L-20L per hectare

 

Grey leaf spot control. 

24L per hectare

 

Always read the label before using any product.

Dacogreen is a registered trademark of Colin Campbell (Chemicals) Pty Ltd

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AGCSA 2013 blog winners

Thanks to all that signed up for the blog while at the show last week. The winners chosen just after the tradeshow are:


Winner of:

$40 wish gift card 1 

Matt McLeod- Tocumwal Golf Club

$40 wish gift card 2 

Jason Bushell – Rowes Bay Golf Club

 

$20 itunes gift card 1

Sean Stuchbery- Bundaberg Golf Club

 

$20 itunes gift card 2

 

Daniel Ryan- SCG


Winners have been notified via email and twitter.

Turfpath app & Seminar season kick off – April 2013

https://si0.twimg.com/profile_banners/115406246/1365797823/web

 

 

 

I’ve come across a new app perfect for us in the turf industry. Since I first bought my iPhone I have been on the search for new apps to help with turf management. Those of you who were at my talk at the Australian Turfgrass conference saw that there were already plenty of apps available to download. However I always knew with ever changing technology new apps would appear. Just released this month on ios (apple iphone) and android is Turfpath. 


From turfpath.com


This app has been developed by turfgrass professionals and is intended for use by anyone interested in managing their golf course, athletic field or home lawn to the highest level.

Featured within the mobile application are pest descriptions, image galleries, and updated control products. While these resources are an invaluable tool for turfgrass professionals and enthusiasts alike, it is the wealth of active users that makes this the most powerful pest management tool in the palm of your hand.

 

 

Note of caution:

 

The recommendations for the use of pesticides in this app are relevant to USA only, as the products are not necessarily registered for those specific uses in Australia under the Agricultural and Veterinary Chemicals Act 1994. Users of this app are advised to refer to the labels of pesticides that are registered for use in Australia under this Act to determine and only use pesticides in accordance with the registered Australian label. 


Turfpath focuses on the virtual interaction of turfgrass managers from around the world. Find out what others in your area are reporting. Receive active pest notifications. Upload your pest images to solve your pest problem and receive suggested controls.

If that’s not enough, we also have created a system of points and badges to reward active users. Earn points for reporting pest problems, commenting on others’ questions, sharing information on social networks and various other ways.(I’m currently ranked 12th at time of writing)


I have been playing around with the app for the past week and have found some very valuable turf information on it. The app is easy to use and runs very smoothly which is a big bonus in my book. 

There are 3 sections in the pests, 1)Diseases, 2)Insects, 3)weeds

 

As well there is a gallery of images on different diseases/insects/weeds. Each item has muliple pictures.

 

The information is up to date and is easy to follow. The descriptions are easy to read with valuable information on the disease/pest/weed. it descibes the identification and favourable conditions for the disease/pest/weed. In the control section cultural controls take priority.

 

The contributors include some well known university professors and scientists with expertise in diseases, insects and weeds:

 

Rick Brandenburg

Peter Dernoeden

John Kaminski

Scott McElroy

Micah Woods

 


I particularly like that the app will have information that will be updated continuously and users can contribute to the app with comments and photos.

 

The app is fully integrated to social media which makes things easy to publish. I again urge all turf managers to get on twitter its a great communication tool for our industry. Its easy to sgin up, just head to twitter.com and choose the signup option and follow the steps.

 

We always say that diseases can look very different than what the textbook shows. This app will help to reduce that confusion with the sharing component with being able to upload images.


There is also a video section with short educational videos.

 

 

 

To download the app search for turfpath in either google play or itunes app store. Or follow these links


IOS
turf.gs/ZDAVwF .

 

Android

http://t.co/aDoACbVeFq

 

Seminar season has already kicked off

 

Don’t forget about a couple of up coming seminars with the STA Mudgee seminar & Blue Mountains Districts Golf Day on the 13th & 14th May. On the Monday there is a short half day seminar with up to date regulations and spray technology. The Tuesday feature the annual Blue Mountains & Western District Golf Day which is always good fun.

&nb

Rennovations coming up DewCure can Help March 2013

 

 

 

 

Just a short post on DewCure we released 2nd quarter of last year.


DewCure is designed to suppress dew formation and give frost protection.


There are many benefits of DewCure  including:

  • Reduces labour costs- no need for dew brooms. Even though mowers and dew brooms can aid in removing dew the surface can still remain wet and dew can still reform under the right conditions. Using DewCure climates this issue and keeps the turf drier.


  • Frost damage prevention- DewCure will not stop frosts but it allows the frost to melt quicker hence play can start earlier with less damage to turf for members


  • Extended periods of leaf wetness are required by many foliar pathogens in order for infection to occur. DewCure can give you more favourable conditions to assist in disease management.


  • Drier playing conditions for both tournament and everyday play

 

However I wanted to point out with renovations coming up DewCure has a perfect fit for your course. Not all courses have the luxury of closing down for that time. Even so working on wet surfaces creates a whole heap of headaches. 

 

With DewCure these headaches are greatly reduced as applying DewCure  1-2 days before renovations your turf will be drier and allow you to start these practices earlier. As well there will be less clumping of clippings and less mess to clean up. 

 

For a past post on DewCure See this post 

 

http://campbellturf.blogspot.com.au/2012/05/dewcure-is-here.html 



Until next time take care.


Nadeem Zreiikat

 

GIS 2013- San Diego

Firstly let me apologise to everyone about the lateness of my post. Ever since I got back form the US its been flat out with follow ups and trial work. Enough about me onto the show.


This year the US turf conference commonly known as GIS was in San Diego California on the west coast. I’ve never been there before so I decided to drive from LA to San Diego to take in the scenery. Its a nice 2.5 hr drive and half of it you have the coast on the right side. The drive was made even better with the rental car. I asked for an upgrade and for a small amount hey gave me a 2013 Chevy Camero (seen below).






If you ever get to San Diego it would be an idea to see the USS Midway an old aircraft carrier they have docked there and now turned into a museum. These things are huge but very cramped for the crew who work on them. They also had a display of the war planes. What I really liked was that for the tour guides they were all ex Navy/army so you get a real life perspective on what they went through. Well worth it.



 

 

 

 

 

GIS Show and Education Conference


This year education conference as always is packed with great seminars and there are always too many to choose from. I attended the following over the week

 

  • Managing Creeping Bentgrass in a summer decline complex- this was great in giving you solutions to common problems that you may not of thought of. It was the first year of this seminar so if you do attend next year well worth to check it out.
  • Using Wetting Agents- this gave a good understanding of the products available and more importantly in the causes of dry patch
  • Weed Control in warm season grasses- this concentrated on new products coming out in the US more so than other aspects but there was a good discussion on herbicide resistance which is a reality not just in the US but here in Australia.
  • Understanding Turfgrass fungicides (This was a highlight with Richard Latin from Purdue University). It gave you a good understanding of dealing with the pathogen and how the chemical attacks it. Alot more in depth than what I first thought.

 

If anyone wants to discuss these topics please let me know.

 

The actual show this year was smaller than previous years I thought but done well. The US golf industry is slowly turning the corner as there were quite a few new displays. Just over 13,000 attended the show which was a little down but expected as the west coast is a smaller market overall. The show covered 1.6 hectares of floor space.


I don’t have many pictures from the show itself as the stands looked very similar to last season but here a few pics that stand out from the city and the show.

 

 Jacobsen taxis in their colours which was quite unique.

 

 

 Wheels for your golf cart

View coming down the escalator at the conference centre

Me and Pat Jones of GCI magazine.. Really nice guy and has a great magazine called Golf Course Industry. There is a printed version as well as an ipad and iphone version. Well worth a read


Social Media The biggest highlight

However the biggest highlight of the week besides the education was the social aspect. Not the aspect you are thinking but from a social media side. There were 3 events I went to all organised via Twitter no email, phone or printed invite just via twitter. You all know that I do quite a bit of social media and I wanted to show you the reason why I like it so much. Suffice to say if it wasn’t for twitter I would not be able to meet all these people in the pictures below and would not be able to call them my friends.


As I mentioned there were 3 events the first was organised by @pheasanturf. He suggested we all meet at a pub on the Monday after the seminars. This was all organised on twitter. What looked like about 6 of us turned into about 40 of us throughout the night. It was great to meet alot of the supers I speak to face to face. We all agreed if it wasn’t for twitter we would not be there right now.


Here are a few pics form the night

 

 

 

 

A note here face to face interaction is still the best way to communicate and I would never give that up. Social Media gives us an easy an convenient way when we can’t see each other all the time.


My next social media event was the @gcimagazine Tweetup awards which were held for the second time. This year we were indoors thanks to Aquatrols. There were a few different categorie winners and all the winners can be seen by clicking on this link


http://www.golfcourseindustry.com/gci-020613-tweet-up-awards.aspx


A few pictures from the awards ceremony:

 

 

 

 

 

 

Lastly I was invited to a Wives of Turf Function (yes husbands were allowed to attend). 

 

The “Wives of Turf is an online community for the wives of men in the turf industry. This is a place for wives to come for support and camaraderie for everything from the little things like cleaning up after our Men of Turf to the life altering events that sometimes come as a part of the turf lifestyle”.

 

It a great organisation and support group that any supers wife can join. There are no fees or anything like that just wives of supers who communicate with each other via twitter and facebook. If your wife is interested in becoming a part of it click on their website here

 

Twitter handle is @wivesofturf


Some of the wives at the function

 

 

Here I am with the founder of Wives of Turf (Mychal) and @iturfapps (Bill).

 

 

There was so much information I picked up on the trip and I will be including that in future posts on turf management. I also picked up some new apps that myself and Robin Doodson will be working on in the next coming months so watch out for that.

 

But for now thanks for reading this post. I’ll finish off with this that i saw in Hawaii on the way back.







Regards


Nadeem Zreikat

Colin Campbell (Chemicals) Pty Ltd



































Fairy Ring is coming- Control with Monstar – October 2012

Not long ago we were in the middle of winter with things a little quieter than usual, but that has all changed.

 

With spring truely here growth is starting again and I wanted to quickly do a post on Fairy Ring and its control with Monstar the fungicide we launched in November 2011. But first a little information on the type of fairy ring.

 

There are 3 types classified for Fairy Ring:

 

 

 

  Type 1- Most destructive- kills turf due to the fungi causing the soil to become hydrophobic and the roots cannot take up any water

 

 

 

 

 

Type 2- Dark green rings due to an increase in nutrients of decomposition of organic matter or the fungi

 

 

 

 

 

Type 3- Mushrooms in a arc or ring formation. usually seend after heavy rain or irrigartion

 

 

 

 

 

 

 

 

 

 

 

There is quite a bit of information on fairy ring available and if anyone is interested write me an email and I can send you some information and links I have.

 

MONSTAR- The Standard in Fairy Ring Control

 

Monstar is currently for use on permit for fairy ring control in Australia. Trials are being undertaken this season for Fairy Ring and other diseases with full registration to follow.

 

 

Features of Monstar

Brand New active (464g/L Flutolanil) and resistance group (Group 7) for the Australian turf industry 

Known as Prostar in USA (used for over 10 years there)

Liquid formulation

For use on APVMA permit 12842

No growth regulation effects

Exempt from Poison Schedule (lowest possible)

Curative and preventative properties

 

 

Rates Preventative & Curative (Fairy Ring) & Tips

130mL/100m2 (Preventative)

200mL/100m2 (Curative)

It is a requirement to apply Monstar with wetting agent (non ionic) as the fairy ring causes the soil to become hydrophobic.

Tips

Water turf before application (morning of or night before to moisten turf)

Water in after application

If possible verti drain (or punch holes) area before application will help in getting the chemical to the target area

 

 

Click here for the permit http://www.campbellchemicals.com.au/turf.cfm and scroll down to Monstar.

 

Any questions please don’t hesitate to contact me via

zreikat@campbellchemicals.com.au

 

Follow our turf division
www.twitter.com/campbellturf
http://campbellturf.blogspot.com/

 

 

 

Social Media Presentation at AGCSA conference 2012

 

The AGCSA and the Australian Turfgrass Conference have kindly allowed me to share with you our presentation myself and Robin Doodson did at the Melbourne conference back in June on social media for turf use.

 

You will need to install some software on your computer to view it (takes about 2 minutes to install) Feel free to watch it as many times as you like or bit by bit.

 

The order of the topics are as follows:

  • Privacy of Social Media
  • Social Media – what it is
  • Tools of social Media
  • Turf apps for your smartphone
  • Hangout

 

Feel free to share this with other supers and turf managers and please don’t hesitate to contact me if you have any questions

 

View presentation here

 

 

 

For my US & Canadian readers you may recognise a few familiar faces during the hangout. As an added bonus (I hope) you get to see me in action talking about a topic that I have become quite passionate about to say the least.

 

Take Care

 

Nadeem Zreikat

zreikat@campbellchemicals.com.au