hey harvestman .... that is personal experience in my z5 .... i will submit.. that i spoke authoritatively ... as if it is backed by science ... but once i comprehended that if you GET THEM DORMANT ... AND KEPT THEM DORMANT .... my success rate went from 50/50 to 95% .... the early experience was hybrid T roses ... where unprotected canes.. will thaw on the sun side.. and not on the dark side... and that happening repeatedly ... will kill the cane.. and if that goes all the way to the graft.. it is dead ... and why here.. in the great white north.. we bury the plant to about 6 inches in loose mulch.. and then put a styrophome cone over them ... no sun.. no wind.. and a thermal breaker for ambient air temp changes .... and the theory was reinforced when i moved 1700 potted plants of all kinds in january 2000 ... and put some in the pole barn ... which came out of dormancy early.. because the barn ended up a z7 .. and i had plants coming out of dormancy 2 to 3 months prior to last hard frost ... versus those allowed to freeze solid.. and stacked on their sides on the north side .. outside of the barn .. where they stayed frozen/dormant.. until near last frost ... as i said.. IMHOpinion .... its all about stressing the plant.. by going in and out of dormancy.. whether it is the roots.. the plants.. the bark.. the liquids inside.. i do not know ... and i doubt it is much of an issue ... south of z6 ... its just that zones 5 and 6 .. are so flexible ... anyway.. good luck ken

I try to stay off most of the controversial topics but appreciate this reference and Hemenway's review. edlincoln's point about misuse of the term is thought provoking. If we use the word "invasive" for every weed, or every exotic plant, we dilute the meaning. For example, dandelions might be annoying, but they also provide pollen and nectar for beneficial insects. I don't know if they force out native plants. Dandelions' deep roots are thought to return nutrients to the soil surface. We don't use them for a food crop, but we could. I do pull them and feed them to the chickens, which eat them completely. That is not the same as Himalayan blackberry, which does seem to invade and disrupt the Pacific NW ecosystem. That is even though the blackberries provide food for birds and bees like the flowers of those too. That includes native bees. I've been trying to remove them from my property, but I'm not in a big hurry and it's a lot of work. I have also seen sterile buddleia disparaged, because the species Buddleia davidii is invasive and writers have speculated that sterile varieties could adapt and become invasive at some future time. But as it is, the sterile ones do not seed, they don't spread, and they are one of the few plants in my yard that bloom when they bloom. Many pollinating insects love them. Especially bumblebees. They are one of the seemingly few plants that deer and rabbits don't decimate. I consider deer invasive, even if they are native, because they can't be kept out, are highly destructive, and their numbers proliferate wildly in the absence of native predators. I added non-native plants to my yard because they fill a niche that can be difficult to find for natives. That includes plants that produce pollen and nectar at times that natives don't, or that survive local conditions, or provide wanted food. I have Hyancinthoides, which are considered invasive, but are one of the few bulbs that rabbits and deer don't destroy. When the leaves die down in summer, they are not competing with other plants. I don't see them growing outside disturbed ecosystems. If my area was restricted to all local natives, then it would be a fir and spruce forest. Which isn't a bad thing, but our society has chosen otherwise. The vast majority of what we grow around here is not native to the land that was once deep forest, long since gone. With the changing of climates, conditions that supported the prior ecosystem are changed, and there is no going back. Human beings are the most invasive and ecosystem-destructive species, and we are not proposing getting rid of them. I hope. When I can, I add native plants, but I admit most of my garden is nonnative and a few would be considered invasive. But I don't think those are harmful to the environment or to local ecosystems, and they have a role. Anyway, it's an interesting article and worth reading.

As a long time public employee, I learned the hard way how something said innocently in an email can come back to bite you. I'd always been told that anytime you write an email, pretend it's being published on the front page of the newspaper. ANY time there is anything you don't want going down to posperity, you pick up the phone. And this should apply to anyone using a work email. Recently a very hot button issue my office is working on is going to court . A man using his work email account (at a well known investment firm) utterly disparaged one of the plaintiffs to a colleague of his. His email had been forwarded on as part of a conversation chain and ended up with one of my coworkers-who will have to turn over all HIS emails relating to the case. So this private citizen, using his work email, will have it made public, and will likely end up having to be deposed. Even in a private conversation, you must be careful about who you share with in an email.

Could any rosarians who read Russian tell us about anything in this article (thesis?) that is not well known in the West? ------------------------------------------------------------------------------------------------ Google translation of beginning of PDF: Ministry of Education and Science of the Russian Federation NATIONAL RESEARCH TOMSK STATE UNIVERSITY (NE TGU) Department of Biology Department of Plant Protection EXTENDED QUALIFICATION OF BACHELOR PROTECTION OF ROSE FROM PENALTIES AND DISEASES IN THE GREENHOUSE COMPLEX LLC TRUBACHEVO on the basic educational program of the preparation of bachelors direction of training 3 5.03.04-Agronomy Ugryumova Viktoria Nikolaevna ----------------------------------------------------------------------------------------------- CONTENT 1 REVIEW OF LITERATURE 4 1.1 Biology and cultivation of roses 4 1.1.1 Botanical description 4 1.1.2 Varieties and groups of roses 5 1.1.3 Features of roses growing in the closed ground 9 1.2 Mushroom diseases of roses 13 1.2.1 Powdery Mildew 13 1.2.2 Gray rot 14 1.2.3 Black spotting. 16 1.2.4 Rust 17 1.2.5 Fusariosis 17 1.2.6 Infectious burn (stem cancer) of roses 18 1.2.7 Downy mildew (Peronosporosis) 19 1.2.8 Pestalotsiosis 20 1.2.9 Tracheomycosis wiltings 21 1.2.10 Ordinary Cancer 22 1.2.11 Non-opening of buds 22 1.3 Pest of roses 23 1.3.1 Cobwebs 24 1.3.2 Aphids 25 1.4 Methods of protecting roses from diseases and pests 27 1.4.1 Agrotechnical methods 1.4.1 Agrotechnical methods of combating diseases 27 1.4.2 The biological method of pest control 29 1.4.3 Chemical method of disease control 30 http://vital.lib.tsu.ru/vital/access/services/Download/vital:2765/SOURCE01