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Date Posted: 15:33:07 09/24/00 Sun
Author: John O'Mahony
Author Host/IP: tc-853.dialup.srtnet.com / 216.221.109.91
Subject: Fungicides used in Ireland

Hello March & Family
Thank you for your recent email, nice to hear from people in other countries.I know the area you live in, having passed through on a trip 5yrs ago with Sheila to celebrate our 25th anniversary. We stayed in Fargo and continued North on route 29 on our way to Winnipeg. We were very impressed with the vast scale of tillage farming in North Dakota, the deep rich soils and open flat country must be ideal for big machinery, the wheat crops at that time(in late June) were in what we would call the grass corn stage, we came across several farmers busy spraying for weed control.
Sorry to hear your wheat did not make the higher grade. Your yields are much lower than over here , however we work on a much smaller acreage, and also have much higher production costs, because of our damp climate we have to spray several times for disease, also our machinery cost per acre is higher as we spread it over less acres.
We use a variety of fungicides and take a programmed approach to growing the crop, grain crops receive three main fungicide sprays as the crop passes through the different growth stages, i.e. first application at growth stage 31-32 second spray at g.s. 37-39 last spray at g.s.51-60,(Zadoks scale) the timing may vary a bit depending on weather conditions etc.
We use some of the older products early in the season such as Tilt (a triazole type ) when disease pressure is not so great, the last two applications are sprayed with the newer strobilurin type products such as Amistar (Zenica), Allegro(BASF). Yield response is very good and could be in the range of 1 to 2tons per acre (40 to 80 bushels) for wheat.This method of growing has evolved here over the last 20years or so and has helped to ensure that we can get a reasonable return from grain growing , although returns are certainly not as good as a few years back.
It would be interesting to find out what kind of yield increase might be obtained in your area with this type of treatment, of course much would depend on factors such as your soil , amount of rainfall, length of growing season etc.
I have received such a huge response to my last article that I would consider a trip to the U.S. to talk about our crop growing methods. This would have to be in the off season early in the new year before we get busy with the spring planting. I would have to find a way to cover the cost of the trip and would be open to any ideas you might have.I have a lot of experience of giving talks on agricultural matters. Have also taken part in on a U.S. radio show last July called AgriTalk.
Would be interested to get your views on this idea.
Yours sincerely

John O'Mahony.

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