Journal of General Plant Pathology May 2013, Volume 79, Issue 3, pp 198-204 Title: Exogenous ascorbic acid derivatives and dehydroascorbic acid are effective antiviral agents against Turnip mosaic virus in Brassica rapa Authors: Ayaka Fujiwara, Hanako Shimura, Chikara Masuta, Shinsuke Sano, Tsuyoshi Inukai Abstract: "Plants may activate posttranscriptional gene silencing (PTGS) as an immunity system when they are infected with viruses. Viruses may in turn interfere with this system by producing RNA silencing suppressor (RSS) proteins; most RSSs bind to viral small interfering RNAs (siRNAs). We previously reported that ascorbic acid (AsA) has the ability to interfere with the binding between viral siRNAs and viral RSSs in vitro. We thus expected that AsA-treated plants would show some tolerance to virus infection because the host PTGS will be strengthened by AsA. Brassica rapa subsp. rapa was inoculated with Turnip mosaic virus and treated with the AsA derivatives, l(+)-ascorbic acid 2-sulfate disodium salt dihydrate (AsA��"SO4), l(+)-ascorbyl palmitate (AsA��"Pal) and dehydroascorbic acid (DHA) at 1 h postinoculation. The number of infection sites on inoculated leaves decreased by around 40 % after AsA��"SO4 and AsA��"Pal treatments and by 80 % after DHA treatment compared with the untreated control. As evidenced by an enzyme-linked immunosorbent assay, viral accumulation was significantly reduced after regular sprays with the AsA derivatives and DHA. In a detached leaf assay, AsA clearly functioned as a viral inhibitor in cells. Additionally, we confirmed that DHA also worked in the silencing pathway because its antiviral effect was not observed in the silencing-defective double mutant dcl2/dcl4 of Arabidopsis thaliana. On the basis of these results, we concluded that the AsA derivatives and DHA can significantly reduce viral infection and accumulation and that we can develop those compounds as a practical antiviral agent in the future." http://link.springer.com/content/pdf/10.1007%2Fs10327-013-0439-5.pdf Here is a link that might be useful: new research

I am interested in research papers that investigate the temperature dependence to a plant's ability to fight off virus infections. The full paper accessed through the link below states: "Development of symptoms following inoculation of N. tabacum (��Petite Gerard��) with ToRSV was influenced by temperature. At 34�aC, visual symptoms did not develop on the inoculated leaves or on upper, noninoculated leaves and neither viral RNA nor viral-derived siRNAs were detected in samples collected randomly (data not shown). At lower temperatures, lesions developed on the inoculated leaves 2 to 3 days postinoculation (dpi). At 21�aC, lesions were clearly defined and necrotic (Fig. 1A, panel 1)." This paper titled (Salicylic Acid-Dependent Restriction of Tomato ringspot virus Spread in Tobacco Is Accompanied by a Hypersensitive Response, Local RNA Silencing, and Moderate Systemic Resistance) ties together the "RNA silencing" type immune system response with the "Salicylic Acid" type immune response. The following is a key quote from the abstract: "Lesion size and viral systemic spread were reduced with SA pretreatment but enhanced in NahG transgenic lines deficient in SA accumulation, suggesting that SA-dependent mechanisms play a key role in limiting ToRSV spread in tobacco." In the full paper the following results should be of interest in this thread: "The percentage of plants that became systemically infected was also significantly reduced in SA-treated plants (9% �b 6 in SAtreated plants versus 49% �b 15 in control plants; three independent experiments; P Here is a link that might be useful: link for above, full paper is free

Looks like honeysuckle (Lonicera) branches in the second photo. In your first photo, I'm seeing rose branches with leaves near the roof of the bay windows as well as rose branches without leaves near the top of the nearest post that holds the trellis, some of which can been seen near the top of that post in the second photo. Leafless rose branches spotted near the curve of the gutter downspout & possibly extending above the roof line. The honeysuckle has oblong pairs of leaves at intervals along the stems. The rose has the twiggier, more jagged stems. Hard to see the base of the trellis from your shot, but best guess is the rose is near the center & the honeysuckle planted by the driveway end of the trellis. You can trace a branch of each down to the base to determine which is which. Photos of the base of the plants & close-ups of the rose & (possibly) honeysuckle stems would help with identification of each. When did the rose bloom last year, did it have fragrance, how large were the flowers & were they in clusters? Anything else you remember about what grows on your trellis? Close-ups & any details of blooming you recall will help with ID's. Once you have an idea of who you have there, an informed way forward will be easier to find. This post was edited by vasue on Mon, Jan 5, 15 at 17:59

It totally depends on the type of rose. There is basically nothing you can say about "a rose" as a generic term. The rose we are talking about is a modern hybrid tea rose. Those tend to grow vertically, with a vase shape if you are lucky, and a spindly shape if you are not. Most HTs have "bare legs", and do not leaf out at the bottom just because you shorten the top. That is why lots of people plant other plants in front of them, to hide this problem. The other solution is to purchase shrub shaped roses, which have been hybridized to not have this problem in the first place. Since you live in a warm climate, and the warm climate sources of info say that this particular rose gets very tall, I would believe them. Since it is a HT, and they do not mind "hard pruning", I think you could keep it at 4 feet by pruning it, but I do not think it would get fluffier at the bottom. It would just bloom on the upper 2/3rds of the bush. In your climate, it would also keep getting taller. Jackie