Monthly Archives: December 2014

Merry Christmas 2014

 

Just a quick post to wish everyone all our readers a Merry Christmas and a Happy and Safe New Year from everyone here from Colin Campbell Chemicals.

I hope you have enjoyed reading this blog as much as I have enjoyed writing it and that your year was that little easier. I have got quite a bit of feedback this year from the blog. so thank you.

Thank you for your support throughout the year and I hope its a green keeping Christmas for us in Australia.

For our overseas readers and twitter followers I appreciate you reading the blog and communicating with me through other social media platforms. i enjoy our conversation on twitter and looking forward to meeting for the first time and catching up with old friends at GIS next year.

Wishing you all the best

Colin Campbell (Chemicals) Pty Ltd

Disease Alert Pythium spp update Sydney Dec 2014

As continued from my last post we are experiencing very high pythium levels with all those storms around. It seems if you didn’t get the first 3 the next 3 hit your area. We tend to see Pythium blight and Pythium root rot. Both are very destructive and come in quickly like all Pythium diseases. Controlling Pythium is paramount and all measures should be taken. With these prolonged wet conditions Pythium root rot is most prevalent and is difficult to manage. There is not a lot of information on this type of disease but to say that with water soaked roots and water logged soils this disease runs rampant.

Pythium is always living in the soil and needs the right conditions to cause problems. Water logged greens are a perfect environment for Pythium root rot. You can see Pythium as patterns in greens that follow the drainage lines. Equipment use also spreads the disease. If you have a short root system with compacted soil and poor drainage, your turf will need extra light watering to keep it alive. This will increase Pythium pressure, due to plant wetness. On the other hand, deep infrequent watering can increase Pythium pressure as well as the roots and the soil are being completely soaked which is conducive to Pythium outbreaks. Very hard to win in this situation. That is why it is important to maintain healthy turf and to use specific Pythium fungicides on a preventative basis.

The aim now is to use fungicides on a 7-14 day intervals (no matter what product you are using- hopefully Proplant through). The reason behind this is that your soil will be still very wet and until it dries out it is a perfect environment for the disease. As well as try and reduce the moisture content in your turf to help get the turf to recover. This is the most essential in managing root rot pythium from what I’ve seen over the years with attending various seminars and talking to various turf pathologists and professors.

Apply your fungicide down past the crown do not leave on the surface with application (water in slightly after your boom application)

If you do have an outbreak with any disease, not just Pythium reduce the use of PGR’s until you get recovery. Also look at at tank mixing your fungicide as other diseases maybe present. An Ippon & Proplant tank mix is very effective here.

Cultural Controls of Pythium:

  • Avoid too much N
  • Aerate the area slightly to allow more oxygen to penetrate the soil
  • Utilise pentrant wetting agents to push the moisture through the profile
  • Keep plants healthy as possible with using root stimulants and other biological products
  • Avoid mowing in moist hot weather
  • Raise mowing heights
  • Avoid verti cutting, top dressing if greens are infected  as it puts more stress on the plant
  • Reduce leaf wetness
  • Increase air flow and sunlight to Pythium prone areas

I hope this short posts helps understand the disease a little better and how to manage it.

Any help needed again please don’t hesitate to contact me.

Thank Nadeem

As I sign off another storm is coming past our office at Wetherill Park

High to Extreme Disease Alert Sydney – December 2014

Wow after the driest spring on record and a very dry and hot November December has had a u-turn. high temps high rainfall. This is what I saw yesterday on the radar and on the road. Yes it did get worse after I got home (pic taken by passenger). The red on the radar meant very heavy rain.

 

Radar 3/12 Can't see a thing

 

UPDATED MY CLIMATE DISEASE PREDICTIVE MODEL APP (from livingturf.com.au) SHOWING EXTREME DISEASE ALERT FOR PYTHIUM IN SYDNEY

Photo 5-12-2014 11 05 51 Photo 5-12-2014 11 05 54

As you can see tfrom Monday 1st pythium pressure increased dramatically and is still extreme to high. Recommendation is Proplant as Proplant works in all disease pressure conditions especially known and proven as a strong pythium fungicide

Overnight I was speaking to a few supers on twitter on how much rain they received. There was quite  a difference with western Sydney copping about 45mm of rain while the eastern suburbs only got around 8-18mm which is very surprising since they are the ones who always get a drenching.

What all this means is that disease pressure is very high to extreme (my climate app report) at the moment and will be staying high for the next few days at least. Having a preventative program is the best option however even the best prevention program needs a little fine tuning. Here at Campbell’s we have Proplant available for pythium and is on the of the best products on the market available due to its curative abilities and longest residual over nay other pythium product. Proplant has been a trusted fungicide by meany turf managers for over 10 years now. In our trial work we did with Proplant we compared it against a standard pythium fungicide and found that the standard gave only 7 days residual while Proplant even at both the low and high rates gave 28 days.

For more information see the brochure here Proplant Brochure

Also have a look at our guide to managing pythium not just from a chemical point of view but from a cultural view. Disease guide rhizo eri pythium 2014

Managing pythium is not just use fungicide but use every tool you have at your disposal and make observations on your turf. You need to take a holistic approach from mowing practices, watering practices and inputs you are using. See our guide to find out more.

Proplant image

As always we do recommend a broad spectrum tank mix partner with Proplant (as its is specific to pythium only) as when we were anyalysing the samples in the trials we always found other diseases namely brown patch. So the options we have are:
So have a look at partnering Proplant with Ippon, 250GT, Protak, Monstar,

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

 

Nadeem

zreikat@campbellchemcials.com.au