Tag Archives: agcsa

Kicking it in to high gear- Grand Final Weekend 2016

I apologise for the lack of posts since the AGCSA conference. I have been traveling around the country getting to a bunch of seminars where we have sponsored them and given talks at some.

To give you an idea after the AGCSA conference I attended the following:

  • VGCSA Country meeting at Rich River
  • VGA Bendigo annual seminar
  • TGAA Corowa annual seminar
  • TGCSA annual seminar
  • SAGCSA conference
  • STA NSW Cricket Wicket 101 course (where i was an assessor for the day)

So as you can see it was fairly full on and the airline and rental car companies know me on a first name basis now. If you are on Twitter or a couple of the Facebook turf pages you would have seen a few pictures I posted as well. Let me just say if you haven’t had a chance to get to any turf turf seminars this year JUST DO IT. The information is first class and networking opportunities are endless.

Enough of that and onto the season. Well a wet start for most. Can someone turn the taps off please for a week or so. Plenty of weeds have been coming up as well and germinating quicker than usual. Get on top of this sooner rather than later.

One thing with the wet weather at least you can identify drainage areas that need to be worked on. If this is something you have in the back of your mind map it on paper so you can easily come back to it when you can.Skitch is a great app here where you can draw on pictures taken from your tablet.

As I write this we are still reasonably cool around Australia besides QLD (I don’t think they had winter this year) but it is about to heat will heat up i Sydney anyway around Grand Final time (Go the Swannies, not sure on NRL as my team is out). So here a few tips to prepare your turf:

  • Use turning boards for mowers, reduce victory lap cuts
  • Maintain adequate soil moisture throughout stressful times.
  • Keep a balanced soil profile (get a soil test do not guess)
  • Improve air flow – cut down trees/branches
  • Communication with the club management and members
  • Promote a healthy growing environment
  • Nutrition (Don’t be afraid to apply N – just know how much and what source)
  • Removing dew to reduce leaf diseases
  • Roll greens instead of mowing – alternate each day
  • Raise mowing heights (even by a 0.5 mm makes a difference)
  • Utilise bio stimulant products during the growing season such as kelp (proven to increase root mass), amino acid (heat stress), humic/fulvic acid products. For any bio stimulant look at what’s inside it and see how each component helps the plant- ask questions to those selling them.
  • Hand water with wetting agent tablets especially for drier areas

Weather for the week coming puts temps higher than they have been so far as you can see:






















Lastly 2 things the Monstar permit has been renewed please download the latest permit here

Also I have and event coming up in Adelaide in conjunction with K&B Adams, SAGCSA and Turfwise Consulting featuring 2 great Australian turf professors:

Percy Wong (Plant pathologist)

Peter McMaugh (turf and mite expert)

I will post more later but see all the information here


Good luck everyone hope you can get some downtime during the weekend. Feel free to contact me with any help needed





AGCSA Turf Conference Preview Campbell Stand 20 #32ATC

As mentioned we are proud to have a stand at the Australian Turfgrass Conference. We are located Stand 20- left hand side of the show.

The show is at Crown Palladium in Melbourne 21st-23rd June

Tuesday 4-6 Trade show opening (for registered delegates)
Wednesday 9pm-5pm
Thursday 9am-1.30pm

For more information see this invite

Come and have a chat to us about everything from agronomics to social media and apps in your workplace.

I will be running my blog competition again. All you need to do is fill out the form on the stand.

If you can’t make the show or want to fill it out earlier don’t worry just click on this link to download a form and fill it out Click here for form

Email the form back to news@campbellchemicals.com.au subject AGCSA

1st prize
Golf’s Royal Clubs book (retail $200)

The Royal and Ancient Golf Club of St Andrews has commissioned a new book that celebrates the 65 golf clubs throughout the world that have been conferred the royal title by the British Royal Family.

The book was commissioned to mark Her Majesty The Queen’s Diamond Jubilee and has been written by golf course architect Scott Macpherson.

Golf’s Royal Clubs: Honoured by the British Royal Family 1833-2013 is a comprehensive guide to this unique group of golf clubs. The book profiles each royal golf club and recounts their journeys towards acquiring the royal title and their relationship with the Royal Family.

book royals

2nd Prize
6000mAH Powerrbank
Charger (retail $60)

power bank 6000

3rd Prize
3200mAh Powerbank Charger (retail $40)

power bank 3200

All information on the conference can be found @ www.agcsa.com.au

I will be doing a live blog and will send details out shortly.

Don’t forget to see my previous posts on the Tweetup and my talk

As well Turf Republic have their Turfsnap app where you casn take pictures during the week and add the AGCSA badge onto the picture and share it on your social networks.

If you haven’t downloaded Turfsnap see this link here.
Available on ios only

Don’t forget

Tuesday 21st June 3.20pm-4pm I am proud to be doing a session on
“Building Your Profile Using Social Media”

See you all in Melbourne and if you can’t make it follow the live blog.


Nadeem Zreikat
Colin Campbell (Chemicals) Pty Ltd
Phone: (02) 9725-2544 Fax: (02) 9604-7768
Mob: 0403 110 608
Follow our turf division

1st Ever Australian Turf TWEETUP @ ACGSA Conference #32ATC

I’ve been thinking about this for a bit of time especially after the success of the US one which i have posted before (If you don’t know what I’m speaking about have a look at this post here from the Vegas GIS the 2nd ever Tweetup ) It was a great way to meet people that i would not normally of met if it wasn’t for twitter and made some long term friendship because of it. As I posted last night thank to @itweetturf @GCI_Magaine @TurfRepublic for the inspiration

After a discussion with Dean Hardman from the Australian Golf Course on the conference he said he would like to meet all the people who are on twitter and facebook in person. So I said we can look at organising it. With help from Peter Frewin and the AGCSA staff we decided to hold a short meet and greet (TWEETUP) during the opening to the trade show on the Tuesday.. All details are below. So please come along there will be drinks around the place and a great way to meet those on social media face to face.

Feel free to hit me up before or during the conference for any questions on twitter or


If you cna’t make it I’ll be running a live blog again and doing some live streaming so keep an eye out on my twitter feed for the link (www.twitter.com/campbellturf)

Also Please use #32ATC when posting anything on social media about the conference.
Note entry to the Tuesday is for full registered delegates


Tweetup details

AGCSA Turf Conference 2016 #32ATC – PREVIEW

Photo 25-06-2015 7 20 18 pm (Copy)






The Australian Turfgrass Conference is only 3 weeks away . Hard to believe isn’t it. A few things I want to point out which I hope you can attend or use for the conference.

There are plenty of talks on during the week and some great speakers but one not to be missed is myself (Yes totting my own horn here)

Tuesday 21st June 3.20pm-4pm I am proud to be doing a session on
“Building Your Profile Using Social Media”

What i aim to do is

  • Give you the tools available within social media to raise your profile

  • How to use those tools and

  • Create your own personal brand and make this an asset.

As well as making it fun along the way I hope to give everyone something to take home..


The AGCSA has released their app again for the conference it is similar to last year with some new features including:

As well the functionality and smoothness is alot better as well. I urge everyone to download it even if you are not going to the conference

Photo 1-06-2016, 2 18 49 PM

Download on iphone or Ipad

Download on google Play

In my next post I’ll tell you about an exciting event after my talk and the preview our stand.





AGCSA conference & Late winter update 2014

Sorry I’ve been quiet on the blogging front its been a hectic couple of months planning for the coming season. Even though this is the quiet time in turf here at Campbell’s we keep going with plans for the coming season. We have trials to plan and determine how and where we can help turf managers maintain healthier turf. In saying this I’ve been working with a few turf managers on some disease management programs to combat issues they had over the last summer.

When I do a program up for someone I listen to what they have had issues with and what they have been doing to determine why the issue was  as concern. I then formulate a plan utilsing cultural controls and plant protection products not only from our range but also products that have a place to best help the turf manager to achieve the desired result working within their budget. So if you would like me to help in anyway please feel free to email me zreikat@campbellchemicals.com.au


As I write this we have had some much needed rain in Sydney, however as usual its all come at once with some flooding around the place. These are a few pictures from some Sydney turf managers on twitter with the recent rain.

Photo 19-08-2014 11 53 05 Photo 19-08-2014 11 50 49

I have also been hearing and seeing some insect activity early this season in Sydney due to a warmer July/August so be on the lookout. As a side note after the shortage last season our insecticide PENNSIDE IS BACK IN STOCK. Pennside is a broad spectrum (Micorencapsulated) slow release insecticide For details please see this link to the label

We also have Biff our bifenthrin option for adult pests

With this rain around if you are looking for some weed control we have the following options


Lastly the AGCSA conference on the Gold Coast was a success. We got to see many familiar faces and met some new ones. A big shout out to keynote speaker Dr Karl Daneberger for passing by and saying hello. His workshops were packed to say the least.

Here are a few pics from the trade show and conference..


A usual if you have any questions please don’t hesitate to contact me.

I will have a few more posts in the coming weeks as well with some product profiles and our seminar review conducted with the AGCSA featuring Dr John Kaminski and Dr Scott McElroy


Nadeem Zreikat







AGCSA 2014 Conference PART 2

As promised here is part 2 of my post on the AGCSA conference. There will be a final part coming soon with what you can see at our stand at this year’s show.

Getting the most out of the trade show:

The AGCSA conference week is a great experience for anyone in the turf industry. We get to catch yup with old friends and make new ones. Plenty of networking and education opportunities are available during the week and I encourage you to attend as many sessions as possible. As always there is the trade show part of the week which runs from Wednesday until Thursday just after lunch in the exhibition hall. There are plenty of new companies and new products available to help you and this is a great opportunity to see them. To better plan your trade who experience I have a to 10 list to make things easier for the week:

  1. Set goals on what you want to see and find out
  2. Check out the exhibitor list and make a note on who you want to see (the AGCSA app is perfect for this).
  3. Make contact with the company beforehand and inform them you want to meet with them. If a time that suits you works let them know or if there is a certain company staff member you want to see they can make sure they are available. They may suggest a member who is best to talk to.
  4. Speak to the company who makes the products (not just the ones that sell the product) as they will be able to help you get the most out of it. There are many experts in our industry that you may not of met them or may of only see them at shows so take the time to have a talk to them. They maybe able to help with other questions you have.
  5. You don’t have to load up your bag full of brochures ask the company to email you any information you want.
  6. Take your business cards with you. If you don’t have one get your club to make you one up (they are very cheap to do).
  7. Take your Smartphone and tablet (there is free internet available at the show). Utilise note taking apps such as evernote. This is the app I use when I travel and attend talks and tradeshows. For a complete review on evernote see http://iturfapps.com/application/evernote/
  8. Dress professionally. Remember you are representing your club/facility. If you don’t have a polo or long sleeve shirt from your facility ask the powers that be to give you one.
  9. Wear your badge- this makes it easier for everyone to remember each others name
  10. Wear comfortable shoes- you will be doing alot of walking during the week. Friends of mine who attended turf shows over the in the US said to me that they took over 20,000 a day



Using QR codes:

You may have seen these on advertisements in everyday life but have no idea what they are for.
http://www.whatisaqrcode.co.uk/ states that QR codes are:
Quick Response Codes are a type of two-dimensional barcode that can be read using smartphones and dedicated QR reading devices, that link directly to text, emails, websites, phone numbers and more

There are plenty of free QR code apps you can use just search your app market for QR reader or QR scanner.

In my last part of the conference series I will be giving a preview of what we will have on our stand this year.


If you missed part 1 on the AGCSA conference app see this link here


Nadeem Zreikat

2012 Full Steam ahead at Campbell’s

Continuing on from my last post, 2012 will be full steam ahead at Colin Campbell (Chemicals) Pty Ltd with 2 new products coming online.


The first was released late last year Monstar (for type 1,2 and 3 fairy ring control- permit and rhizoctonia*). This was posted before Christmas.


The other will be DewCure a totally new product and concept for dew supression. A product like this has never been utilised fully in Australia and we are very excited to be able to bring it to the turf industry. It has only recently been used over the past few years in the US with great success as well. I will post more on this later on.


Here’s a picture of DewCure in action during last winter in Sydney. As you can see that the middle of the green was left untreated and either side was treated with DewCure. This was taken about 10am in the middle of winter where the dew was still present (seen in the untreated area).





Also on the agenda this year is the AGCSA turf conference in Melbourne running 4th-8th June We here at Coiln Campbell (chemicals) Pty Ltd) will be well represented with our stand along with our key partners in the show. We will be doing full launches of Monstar and DewCure during that week. Monstar is available now and DewCure will be available early Autumn. I will post more later on.


The program has been released and you may have noticed my name on the program. Many of you will know my passion for social media and how I have been utilising this blog and twitter and Google + to name a few so it was only logical to share my passion with our industry. I will be presenting in conjunction with Robin Doodson (Sanctuary Cove Golf Club) a workshop title:



“Using Social Media and Smartphone Apps in everyday Turf Management”

Presented By:

Nadeem Zreikat Colin Campbell Chemicals @campbellturf

Robin Doodson Sanctuary Cove Golf Club @GreensSCGC

Time 8.30-10am Thursday 7th June.


Our aim is to expalin how social media can beneift turf managers in everyday situations.


If you are on twitter follow hashtag #AGCSA12 which myself and Robin have setup for the conference. We will post all relevant informaiton there.


Thank you again for reading my blog, feel free to leave a comment or get in tocuh with me on twitter or email. zreikat@campbellchemicals.com.au


*Trials are currently being undertaken on fairy ring and rhizoctonia for Monstar

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.


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.




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.













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.




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

Follow our turf division


Fungicide Reistance Parts 1&2 Nov 2012

Fungicide Resistance

This is a topic close to me as when I develop programs up for turf managers I always ask what their problems are and when do they occur, how there budget is etc. Pretty much what GCI Magazine just published with their “Get with the plan” story in the September 2012 issue. I go away and devlop a program and usually come back with a varied program to what they are already doing. One thing I always try to do is educate turf managers on is resistance and the need to be aware of it and steps to minimise the onset of it especially with less than less newer fungicide groups being developed. In Australia we have no documented cases of resistance (in fungicides, herbicides or insecticides) in turf, not that there isn’t any it’s just that work has not been done. For those in the US and Canada reading this I’m envious of this service you guys have where you can easily get samples tested for a nominal fee from local universities. We don’t have that service in Australian turf.

With this post I wanted to outline the basics of resistance and give you a few helpful tips when choosing the product for the job. You can relate this back to herbicides and insecticides but I will be concentrating on fungicides. 


On a side note there was an interesting blog post by one of our horticulture retailers on herbicide reistant rye grass. Have a quick read on this as in turf we use the SU Group B herbicides that they talk about. Click here

What is resistance?

Resistance occurs when a fungus which was sensitive to a fungicide becomes resistant to it (Vargas). Another definition is “resistance is a genetic adjustment by a fungus that results in reduced sensitivity to a fungicide. “(Damicone)

There are 2 strains of fungus in turf. These are the:
•    Wild Type Strain &
•    Resistant Strain

The Wild Type strain is the natural fungus in the turf that has been present before any fungicide has ever been used. The fungus is sensitive to the fungicide and thus the fungus is eliminated.

The Resistant Strain is the fungus that is not eliminated by the fungicide.The build up of the resistant strain is caused by repeated use of the fungicide and the selectivity of the fungicide against the wild type strains and for the mutant resistant strain. Thus the fungicide only works on the sensitive strain and not the resistant strain, which in turn becomes an increasing proportion of the total fungus population, as long as that fungicide is continually used as a selection agent.

Keep in mind that it is the mutation of genes that causes resistance. The fungicide applied works on the fungus that is the wild type strain thus allowing an increase in the resistant strain. Once the resistant strain is dominant and the wild type strain is the minority the fungicide will no longer be able control the fungus, hence resistance. Another way of putting it is “The fungicide selectively inhibits sensitive strains (Wild Type) but allows the increase of resistance strains (Damicone).”


Chooisng the right product for the job

There are many products out there to control the same disease in most cases. Some are better than others.

What’s important here is when choosing a products is ask yourself the following:

  • Is it turf registered on the disease you want to target  
  • Is there more than one disease you need to treat
  • Is it curative or preventative spray
  • Do you need a systemic or contact fungicide or both
  • Is it worth doing a tank mix
  • Will you need a reapplication of another productin 10-14 days time
  • What else are you doing to get recovery from the turf
  • What resistance group is it- am I applying too much of this group  

One of the most common complaints of fungicides is that “the product did not work or work as well as expected”.There are many factors that are the more likely to cause this rather than resistance.Resistance can only be proven by scientific means.

Keep in mind: 

  •  Right rates are used
  • The fungicide is applied correctly with the correct equipment, water volume and  timing. Understand how the chemical you are using works.
  • The spray equipment is calibrated correctly and running efficiently. Especially make sure the nozzles are in good working order and they are the correct type.
  • The more established the disease the harder it is to eradicate it-  hence  there may not be as long residual as expected from the fungicide and follow up applications at shorter intervals will need to be made.
  • If you have resistance to a  fungicide group on one disease you can still use that fungicide group on other diseases. For example if you have resistance to Ippon (Iprodione) on dollar spot you can still use it for brown patch control and other diseases on the label.
  • If the grass is too weak not even the best fungicide will revive it-hence recovery is essential to minimise re-occurrence of the disease.

I will have part 2 a little later on

Any questions as always please email me at zreikat@campbellchemicals.com.au



Nadeem Zreikat


Part 2

In this 2nd part I will concentrate on  and differences between contact and systemic fungicides and different strategies you can use.

Contact Fungicides 

Contact fungicides are multi site fungicides and have a minimal chance of resistance due to the fungicide attacking many different vital systems of the fungus and have multiple modes of action. They form a protective barrier around the plant tissue (i.e. chemical barrier between the fungus and the plant). They do not penetrate the plant. They generally last only 7-14 days depending on the physical removal by mowing, physical wear by players, sunlight and rainfall/watering New shoots are not protected. Contact fungicides generally only work on a preventative basis. Examples are Dacogreen WeatherShield (not prone to washing off due to formulation), Flowable TMTD, Mancozeb

Systemic Fungicides

Systemic fungicides are absorbed by the plant. The fungicide works inside the plant to control the fungus and stop the plant from being infected and will also protect new growth. Hence systemic fungicides work on both a curative and preventative basis. The residual effect comes from the fact that the plant has absorbed the fungicide and, once absorbed water and sunlight is not an issue. However, degradation by the plant metabolism may still occur. 

Systemic fungicides are classified into 4 groups

Full systemic fungicides move up and down the plant. The only product available is Signature.

Basipetal systemic
• Basipetal systemic fungicides are translocated throughout the plant in a downwards direction through the phloem (sap). There are no products currently available.

Acropetally systemic

• Acropetally systemic fungicides are translocated throughout the plant in an upwards direction through the xylem (water transport). Hence it is important to wash these fungicides off the leaf surface so they can be absorbed by the roots. Examples are Tridim and Proplant.

Locally systemic or meso systemic
• Locally systemic fungicides move below the plant surface but will only move very short distances. They have similar characteristics to contact fungicides in that they protect the plant at the point of contact but, unlike contact fungicides, they move into the plant tissue. These are also commonly known as translaminar because, when applied to one surface of the leaf, they are able to move through the leaf to the other surface of the leaf. Examples are Ippon and Protak.

Be aware, even though systemic fungicides have a residual of up to 28 days they may last much less than this depending on disease pressure at the time. If disease pressure is high with wet day/nights, high night/day temperatures and high humidity, the fungicide may not control the disease for 28 days and subsequent applications may be needed even at possibly 10-14 days intervals. If spraying on a curative basis the fungicide is less likely to last the full 28 days as well. Bare in mind using the lower label rate (if available) of the product will also shorten residual and may not have curative properties.

On a side note – if you are continuously spraying and not sure why the issue is not going away look at your plant health. Is there other things at work here such as insect damage, nematodes, heat stress etc.

Strategies for Resistance

There is no wrong or right strategy here. What is important is mixing up your resistance groups. Not just your active ingredients. For example we have Tridim (triadimenol) & Protak (prochloraz) for dollar sport control. Both have different active ingredients but are the same Group 3 (DMI) Fungicides. So if you were using Tridim then followed by Protak you are not doing anything to combat resistance you are only increasing the risk.

My suggestion would be to to do the following to really mix up your groups.Here is an example for dollar spot control with our fungicides.

App 1: Tridim (Group 3)

App 2: Dacogreen (Group M5)

App 3: Ippon or 250GT (Group 2)

App 4: Protak (Group 3) 

App 5: Vorlon (Group 1)

 As you can see in the 5 applications for dollar spot I have used 4 different resistance groupings

Limit the use of high risk groupings. In turf Group 11 (e.g Azoxystrobin, Trifloxystrobin-this is active comes in a pre mix fungicide) and Group 1 (Vorlon Thiabendazole) have a higher risk of resistance. Use these products mainly for preventative measures rather a curative application. There is worldwide resistance documented to Group 11 fungicides in various crops and turf.   

On a side note – when filling out spray records always include what group you used.This will allow you to monitor and recall what groups you have been using throughout the pressure times.

What about Pre Mix fungicides:

Pre Mix fungicides are good tools to help combat a broad range of diseases and can help with resistance management as there are usually 2 (can be more) different groups in a product. For example Headway and Dedicate have the groups 11 and 3 in it and combat a wide range of diseases. However you still need to be aware even if using them you are still applying that group on the disease (so limit the amount of sprays in your program to what is recommended) and these products may have less active ingredient in the product hence you may get a shorter residual control period than the stand alone product.

With fungicides always look to apply them at the right time on a prevention basis in pressure times. If the disease has taken hold it may take multiple applications to get the disease under control and increase resistance along the way. As well being weakened other diseases which are not normally an issue start to become prevelant. I have seen many tests come back with diseases such as phoma and bipolaris from the samples. These are more secondary diseases. You have to ask yourself why are these diseases there in the first place.

Cultural Practices

This is one of the most useful tools in resistance management. If utilised cultural practices can reduce the instance of disease and thus putting less pressure on your fungicide and even reduce the number of applications in a season.

The following cultural practices will help in aiding disease management and improve the turf surface:

Removing dew (use DewCure here or dew brooms) to reduce leaf diseases

  • Rolling greens (this aids especially with dollar spot and anthracnose management)
  • Frequent dusting
  • Spoon feeding with a balanced NPK
  • Raise mowing heights in stressful times
  • Increase air flow and sunlight to diseased prone areas
  • Reduce thatch
  • Improve drainage
  • Keep a balanced soil profile (get a soil test do not guess)
  • Keep mower blades sharp to reduce injury 

All in all this is just a short summary on resistance management. There is plenty of information out there which can be utilised.

If you are interested in reading more on the subject there are two great book that I use on a regular basis:

  • A Practical guide to Turfgrass Fungicides by Richard Latin (one a side note I will be attending Dr Latin’s class at the GCSAA conference and will bring you up to date information here)
  • Management of Turfgrass Diseases by Joe Vargas

Take care and if you want to contact me please don’t hesitate to email me  



Nadeem Zreikat


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