Using Species for Disease Resistance

I love that statement: “You really can eliminate diseases from your garden best with a shovel.”

My sentiments exactly, Kim! ;0)

Sorry about double clicking that post button…

and although it’s not a “species”, I do have a suggestion for an excellent no-spray rose, here in Maryland - I just posted two current pictures of ‘Home Run’ (no-spray) at the link below. If only it had strong fragrance…

Link: maprc.blogspot.com/2011/09/home-run.html

Thanks Tom, your Home Run is a “knock out”! LOL! Just had an idea…all of us here who are neurotic about diseases on our roses should post comments to the appropriate pages on HMF concerning the outstanding ones we grow, indicating where they have been found to be resistant to the various fungi. Collecting that information there should help US determine what to use and help promote the really healthy ones and keep them in the market, as they deserve. Kim

Kim, I like that idea, but I think that we should also include our location with that disease info. Something that is clean for you may be a disaster for me.

Yes ma’am, that’s what I said, “indicating where they’ve been found to be resistant to the various fungi”. Location makes a tremendous difference in performance! Not just due to the various families of fungi, but climatic suitability. Kim

whoops missed that part… sorry, speed reading on top of a friday…

(we’re related! LOL!) Kim

Location is not enough.

Prevalent deseases on succeptible vars is all-important.

There are BS and/or PM free places.

As well as with, with a few or without spraying.

Some do rate resistance with a few sprays.

Few roses I have worked with have passed on superior vigor and disease resistance as well as Kim’s ‘Orangeade’ x fedtschenkoana seedling has. Its offspring are remarkably healthy and strong growers, and all indications are that these qualities continue for at least one more generation beyond.

Paul

Hey, great to see you Paul! You’re missed! Thanks. That is nice information to know. Please let me know if and when you’d like material from the Dottie Louise X Fed. seedlings. I have some interesting looking foliage from them with minis from 2011 germination. I’m primarily focusing on using the mossed and repeat flowering seedlings and will probably discard the other three due to room and ability to keep them watered if too far down hill. I’ve really enjoyed seeing how you’ve massaged interesting seedlings from the Orangeade hybrids. Kim

This is one of the NW/W Chinese species crosses that germinated for me this year. I was a bit concerned about it in the begining ,looked like it had some ploidy issues but within a month it sorted its self out and now is growing out quite well. The cross was Sypmathie X R. forrestina.

Link: i49.servimg.com/u/f49/15/69/45/38/3h_39g10.jpg

That’s quite pretty Warren. Kim

I was worried earlier on, but I think I can relax at the moment. With this cross, only two seedlings came up, this one and another which I have not planted out as yet. The other seedling took ages to stabilize and will planted out today. The photo is of the other seedling.

Kim the Sympathie X R. virginiana seedling with the 3 leaves per leaf stalk ( as you said looks like poison oak) is still producing 3 leaves.

Warren

Link: i49.servimg.com/u/f49/15/69/45/38/3h_39g11.jpg

That’s interesting Warren. I had a (Carlin’s Rhythm X Home Run) X Grandmother’s Hat seedling which did that all the time, too. I finally discarded it in favor of the more vigorous, darker flowered one. Kim

Sure looks like fives in the above photo. Wrong rose?

Hi Larry this is the rose I am talking about in this page link.

Cheers Warren

Link: i49.servimg.com/u/f49/15/69/45/38/3h_40g11.jpg

Larry,

I had the same initial reaction. We are seeing it in 2D and with the overlapping of the leaves, one gets the impression of 5 sometimes. One has to study it more closely.



Warren, lovely foliage on the above picture.



Jim

OK so 39g11 pic is of the seedling mate of the previous post, and your last line comment refers to an earlier post,and is shown in 40g11. And it surely does have that P.O. habit.

I like it. I wonder how it would do here in alkalinity central? Kim

This is the seedling from last year of Sympathie X R. forrestiana , taking a while to stabilize but I think its gradually sorting its self out. I dont think it likes our hot dry heat of the Riverina

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