Tom:
You wrote:
Hello,
Can anyone tell me more about TIRA (The International Ribes Association)?
I visited their web page ( http://www.msu.edu/user/sleightd/tira/index.html ), but I am looking for personal opinions of the group. I see that Ed Mashuburn has contributed to their newsletter. They also do not mention how much their dues are. Luckily for me there is a chapter no too far from me.
Also, has anyone heard of grafting bush type ribes to a tree form of ribes (R. aureum)? It would certainly make an unusual ornamental. It is mentioned on this web page;
http://ssfruit.cas.psu.edu/chapter10/chapter10d.htm
Thanks for any information you can offer on TIRA or this "tree" variety of ribes.
My response:
Tom and all,
I have been on the TIRA board for the past ten years and served as president for six. It is an organization that is related only to Ribes. In more recent years is has moved more towards commercial production. I do write for the quarterly publication, The Ribes Reporter and am the Northeast representative. The dues at the present time are 20.00 per year and there have been some discussions toward raising that in the near future. There are reports from Europe, Canada, and the US. My input is generally towards the home grower and small commercial producer.
There is a very good grower near you at Milton, Andrews Scenic Acres
I wrote an article about "Tree Gooseberries" some time ago and had experimented with them for a number of years. There are some pros and cons to the system. I still have about 20 plants. I grafted gooseberry scions to Jostaberry rootstock, to Pixwell and to ribes aureum. The results were somewhat disappointing, I had been used to 90 to 95% takes with apple, pear and plum, I got about 50% the first year and later improved to about 65 to 70%. Some of the problems were that the grafted plants were shorter lived - 5 to 8 years generally. Those on Josta often suckered badly and the suckers almost always "overgrew" the original plant. Cutting them off just increased the number of sucker the next year.
I grafted the rootstock at about 12 to 15 inches above ground and used a wire trellis to train the plant as it developed. I will try to find the original article that I wrote and send it to you. I still think that there is some merit to the process but would not use Josta as a rootstock. I also grafted to R. Aureum but the takes were even less. I had some pretty good results grafting to gooseberry rootstocks of cv Glendale. It is a very vigorous, tall growing selection (about 7 feet) but it is very thorny and suckers also, but not as much as the Josta. My theory was that getting the plants up high would reduce the mildew problem, would make harvesting easier and would be the reverse of the "dwarf apple" process. I think it works pretty well with most varieties, but did very little for Hinomakki Yellow, you still get a plant that wants to grow horizontal instead of vertical. One big drawback is that if the rootstock died, you lose the whole plant, with a bush that seldom happens.
I also grafted at a height of 6 to 8 inches to form a single stem bush plant or a "leg" this gave about the same results as the tree form but was a little less work. You still had the "bush" but a little taller and could keep the area under it cleaner with ample mulch or cultivation.
I hope that this has been of some help
Ed Mashburn
Northumberland BerryWorks
707 Front Street
Northumberland, PA 17857
Ed@currants.com
WWW.Currants.com
(570) 473-9910
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