Message Board - Bowls: Masalon
9 Nov 2009 by Brian Arran
I have just replaced Rimidin with Masalon for the treatment of fusarium patch, but find the information accompanying this product rather confusing. On the bottle you are advised that a maximum of two treatments a year should be carried out, but on reading the data it says that it is effective for over four weeks. Can anyone throw some light on this. Whilst on the subject of fusarium patch can someone explain why it keeps recurring on our bowling green,whilst the cricket square 200 yards away which receives minimal attention, never seems to be affected.
9 Nov 2009 by Grassman2011
Probably thatch, possibly to much feed, is the dew dispersed each morning, possibly to much annual meadfow grass. Wet/damp ground conditions. Very rarely see fus on rye grass swards.
9 Nov 2009 by pacman75cricket
had a quick look around maybe that your bowling green is enclosed lack of air circulation compared t the cricket pitch in the open.
Also could practices have stressed the plant poorly set mower, too much top growth et.
9 Nov 2009 by Mal
It is a combination of all the things that both bath and pacman suggest. the key thing is the grass species. Annual Meadow grass is particularly suceptipal but equally the other finer grasses found on a green can also be just as suceptipal. Everything else is cultural i.e. correct use of fertilisers, tonics and airation etc.
Geography is everywhere
10 Nov 2009 by jontaylor
Regarding the other part of your question - and this answer is a simplification:
Duration of effect and treatment frequency are determined by two different factors.
The former is determined by how quickly the active component is removed from the treatment area - for example by washing away, by degradation through sunlight or by metabolism in the plant amongst others.
The second is determined partly by a risk assessment of the human and environmental hazards posed by the product - for example wash down into water sources - and also by other factors such as possible resistance build up.
Without knowing the reason for the twice per season restriction I cannot say what the adverse effect of ignoring the label might be. You could damage the grass, you might risk damage to the health of users of the turf, or you might contribute to the poisoning of the water source for your local town.
The ciderman rolls
10 Nov 2009 by jrwright
I think one of the reasons they say to only make a maximum of two applications a year is that Myclobutanil which is the active ingredient in Masalon has a very possibility of causing resitance within the turfgrass plant.
10 Nov 2009 by Steve63
The resistance issue is a good point and if you are able to, it is better to use different fungicides alternately if you can.
Regards
Steve
Don't talk to me about Contractors Wonka, I am one myself......
10 Nov 2009 by vid
The best result I ever had was to decide - with great difficulty - not to use any fungicide at all. The green looked horrible through the autumn with all shades of brown, active rings, fruiting bodies and mycellium. However the following spring there was no fusarium evident at all and the fairy rings all but disappeared (the main problem I had been treating). Could it be that by controlling one type of fungus you vastly promote another??
11 Nov 2009 by Brian Arran
Thanks for your replies. The green is enclosed by a fairly good hedge which may be partly responsible for the recurrence of patch. We have been following a program set up by a leading company who carried out soil tests. We now intend taking a closer look at our grass seed.
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