Search found 1009 matches

by Peter Harris
Mon Oct 03, 2016 10:59 pm
Forum: Rose Hybridizers Association Forum
Topic: May you help? [Genetics of Rose shape]
Replies: 15
Views: 1822

Re: May you help? [Genetics of Rose shape]

Rodrigo, I don't know of any paper on the subject. Probably the best tactic is to use roses of a shape like the one you're trying to get. No guarantees, but you're more likely to get what you want that way. And of course you'll get lots of others of the shapes you don't want, but maybe some of them ...
by Peter Harris
Mon Oct 03, 2016 10:46 am
Forum: Rose Hybridizers Association Forum
Topic: Rose Rosette
Replies: 5
Views: 966

Re: Rose Rosette

Sounds like herbicide. Has glyphosate been used anywhere near the plant (within 25 feet or so)?
by Peter Harris
Mon Aug 15, 2016 1:07 pm
Forum: Rose Hybridizers Association Forum
Topic: Someone has the American Rose Annual from 1931?
Replies: 6
Views: 1028

Re: Someone has the American Rose Annual from 1931?

Rodrigo, I've visited Curitiba and other places in Parana, so I know where Parana is. You might ask around for cuttings of the Roselandia-originated roses such as Cacilda Becker and Carmen Miranda. On a good day I could remember a few more names, but you probably have them in your catalog from 1996,...
by Peter Harris
Sat Aug 13, 2016 9:36 pm
Forum: Rose Hybridizers Association Forum
Topic: Someone has the American Rose Annual from 1931?
Replies: 6
Views: 1028

Re: Someone has the American Rose Annual from 1931?

Rodrigo, I don't know where you live, but if you live in the state of SP, you may be able to find a good bit of information re. Roselandia which used to be in Cotia. Unfortunately that firm seems to have gone out of business and its buildings apparently were destroyed in 2014. I don't know whether s...
by Peter Harris
Fri Jun 10, 2016 5:56 pm
Forum: Rose Hybridizers Association Forum
Topic: Bayer Advanced All-in-One Rose & Flower Care
Replies: 11
Views: 1605

Re: Bayer Advanced All-in-One Rose & Flower Care

Thanks to this discussion, everyone is well informed about the need for precautions when using any product containing tebuconazole.
by Peter Harris
Wed Jun 08, 2016 11:58 pm
Forum: Rose Hybridizers Association Forum
Topic: Bayer Advanced All-in-One Rose & Flower Care
Replies: 11
Views: 1605

Re: Bayer Advanced All-in-One Rose & Flower Care

Henry, As you note, the present label for the Bayer Advanced Disease Control for Roses, Flowers & Shrubs does not specifically mention to avoid use while pregnant. Perhaps you should write to Bayer to ask that a specific caution (DO NOT USE IF YOU ARE PREGNANT!) be provided. However, the label does ...
by Peter Harris
Tue Jun 07, 2016 12:51 am
Forum: Rose Hybridizers Association Forum
Topic: Bayer Advanced All-in-One Rose & Flower Care
Replies: 11
Views: 1605

Re: Bayer Advanced All-in-One Rose & Flower Care

**our findings suggest a potential risk of triazole fungicides to human pregnancy.** Maybe the precautionary principle is to avoid being pregnant? Or to avoid getting pregnant if planning to use such a fungicide. Most of us drive vehicles that burn gasoline. The fumes from gasoline (such as one inha...
by Peter Harris
Mon May 30, 2016 10:35 pm
Forum: Rose Hybridizers Association Forum
Topic: Don Juan
Replies: 1
Views: 484

Re: Don Juan

Some nurseries in the Netherlands are listed on the "Buy From" tab on the HelpMeFind listing. And if you have met some rose growers there in the UK, you may be able to find it just by asking around. 'Don Juan' came from an Italian breeder.

Peter
by Peter Harris
Mon May 30, 2016 10:23 pm
Forum: Rose Hybridizers Association Forum
Topic: Bayer Advanced All-in-One Rose & Flower Care
Replies: 11
Views: 1605

Re: Bayer Advanced All-in-One Rose & Flower Care

John, I agree with those who say to avoid the Bayer Advanced All-in-One It's an awfully expensive way to buy fertilizer--and routine, indiscriminate spraying of insecticide will decrease the number of beneficials in your rose garden. If you need to control black spot and powdery mildew, Bayer Advanc...
by Peter Harris
Tue Apr 05, 2016 12:37 am
Forum: Rose Hybridizers Association Forum
Topic: Latest RHA Newsletter
Replies: 14
Views: 2758

Re: Latest RHA Newsletter

Mine arrived too. Unfortunately it brought a cold front that is supposed to bring at least one very hard freeze ny Saturday night. :(

Peter
by Peter Harris
Fri Apr 01, 2016 11:59 pm
Forum: Rose Hybridizers Association Forum
Topic: Latest RHA Newsletter
Replies: 14
Views: 2758

Re: Latest RHA Newsletter

John, I've not received my printed copy either. Sometimes the printer is a bit slow printing the newsletter and mailing it.

I'm sure Larry will update us when he knows it has been mailed.

Peter
by Peter Harris
Sat Feb 20, 2016 3:56 pm
Forum: Rose Hybridizers Association Forum
Topic: full time position in ornamentals breeding/rose breeding
Replies: 10
Views: 2615

Re: full time position in ornamentals breeding/rose breeding

Maybe the rose breeders were hard at work in July. That fluffy article is about what happened in July--but it was written for Valentine's Day, to sell roses at the llnked Toronto Flower Market Valentine's weekend sale. The breeder position opening was posted about 4 weeks after the July 23 open hous...
by Peter Harris
Thu Feb 18, 2016 10:45 pm
Forum: Rose Hybridizers Association Forum
Topic: full time position in ornamentals breeding/rose breeding
Replies: 10
Views: 2615

Re: full time position in ornamentals breeding/rose breeding

Extended until Feb 22 now.

The perfect candidate has not appeared.
by Peter Harris
Fri Feb 12, 2016 1:10 pm
Forum: Rose Hybridizers Association Forum
Topic: So I don't think I'll be using Coir again
Replies: 6
Views: 1240

Re: So I don't think I'll be using Coir again

Rebekah, More than 10 years ago I decided to try coir. I ordered some bricks, soaked them, and liked what I saw. It was what I didn't see that caused the problem. The coir had been processed in salt water, and was loaded with sodium--enough to kill nearly everything I planted in it. I wrote an artic...
by Peter Harris
Sat Feb 06, 2016 12:34 pm
Forum: Rose Hybridizers Association Forum
Topic: When to expect Rugelda F1 first blooms
Replies: 22
Views: 1841

Re: When to expect Rugelda F1 first blooms

I grew Rugelda for several years, and never got recurrent bloom from it. Nor did any of its seedlings (from several crosses) show recurrence. One seedling that got hidden among more vigorous seedlings from other crosses bloomed for the first time 9 years after it was planted out. After that it bloom...
by Peter Harris
Wed Feb 03, 2016 10:57 am
Forum: Rose Hybridizers Association Forum
Topic: When to expect Rugelda F1 first blooms
Replies: 22
Views: 1841

Re: When to expect Rugelda F1 first blooms

Rugelda by what? Rugelda selfed?
by Peter Harris
Tue Feb 02, 2016 3:36 pm
Forum: Rose Hybridizers Association Forum
Topic: Total disease resistance
Replies: 18
Views: 2210

Re: Total disease resistance

> Does that rose exist?

Don't bet your garden on it.

Peter
by Peter Harris
Mon Feb 01, 2016 7:50 pm
Forum: Rose Hybridizers Association Forum
Topic: full time position in ornamentals breeding/rose breeding
Replies: 10
Views: 2615

Re: full time position in ornamentals breeding/rose breeding

The search for this position (see the first post in this thread) had been extended to January 31, 2016, and has been extended now until February 8. If you are still holding out and you want a challenging position, here's your chance.
by Peter Harris
Sat Jan 23, 2016 10:00 pm
Forum: Rose Hybridizers Association Forum
Topic: LED shop light
Replies: 15
Views: 2327

Re: LED shop light

I don't know what brand Costco is selling. The Lights of America LED shoplights sold at Sam's Club (which David mentioned earlier) have a spectrum with a high peak at about 460 nm and a broad spectrum section between 500 and 600 nm, dropping sharply between 600 nm and 650 nm, with almost nothing abo...
by Peter Harris
Sat Dec 19, 2015 11:13 pm
Forum: Rose Hybridizers Association Forum
Topic: Rosa beggeriana
Replies: 15
Views: 1873

Re: Rosa beggeriana

Rosa laxa and Rosa beggeriana have been the subjects of a number of threads on this board. Here are several recent threads/posts that contain relevant material. http://www.rosebreeders.org/forum/viewtopic.php?f=2&t=54897#p59640 http://rosebreeders.org/forum/viewtopic.php?f=2&t=54881 http://rosebreed...