Do you defoliate your roses?
haku84_zone9
2 months ago
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What do you do when your mail order starter roses arrive?
Comments (11)Nope, you guys missed a VERY important step. The very first thing you do with new mail order bands after taking them out of the shipping box and taking off any shipping paraphenalia is to fill a garbage can to the point where the water will completely cover the whole plant and to submerge it for 30 minutes to an hour. The point here is to kill any critters that came with your plants, especially of the spider mite variety. It also rehydrates everything that dried out during shipping. Then I keep them in the band pots in the shade for a couple of days and then, when I have time, I pot them up to one gallon pots. No fertilizer in the one gallon pots until you see they are established and growing well....See MoreDo roses survive Japanese Beetle defoliation?
Comments (13)The risk would be to roses that are marginally hardy, so given your climate zone, almost all roses should be OK, and certainly Baltimore Belle. Judging from a study that has been discussed here, you might be able to protect foliage against severe JB damage without doing a lot of environmental harm. (Protecting the flowers is much harder because untreated petals are opening every day.) This would entail removing the open flowers first, then spraying with cyfluthrin, Pyola, or azadirachtin. The latter two are organic products. Cyfluthrin is the most effective. You can find a Bayer spray concentrate with cyfluthrin only (not cyfluthrin + Merit-- imidacloprid-- which will cause spider mite problems). Pyola is available from GardensAlive. Azadirachtin is the insecticidal fraction of neem oil which has been removed from the commonly available neem oil products, probably including whatever you are using. Read neem labels on garden counters until you find azadirachtin as an active ingredient. Pyola was more effective in the study, though. The organic products would need to be applied weekly, cyfluthrin every two weeks....See MoreDefoliated roses
Comments (11)I can see new growth coming on the worst-hit roses, and I finally managed to repel the woodchucks and rabbits with Plantskyyd. I chose that because I had read here that it stunk to high heaven but worked. Well, boy, it is the most repulsive thing I've ever come across in gardening, and that includes cups of dead japanese beetles, but it works like a charm. Thanks goodness for the generosity of GardenWeb gardeners in sharing their wisdom!...See MoreAfter defoliating roses... how long until they totally leaf out?
Comments (12)Cori Ann, I never defoliate my roses (except my old HTs), but this year about half of them defoliated themselves, probably because of the weather. I have noticed a half dozen of the "naked" ones are starting to leaf out already - in our benign climate, I think it depends mostly on what type of rose it is. My once bloomers are leafing out - they tend to bloom earlier than the others each year. Dawson's Apple Blossom (rambler), the yellow banksia (banksia), and Belle Portugaise (hybrid gigantica). Also leafing out are all of the hybrid musks, and some of the tea roses (the other tea roses never stopped blooming, and are still blooming - like Duchesse de Brabant and Safrano). I did prune my 4 hybrid tea roses about a week ago.They are all mid 20th century, so I keep them in huge pots on the patio so I can spray them when needed, as unlike all of my other roses, they ALL get not only blackspot, but also rust. I do defoliate them, because the old leaves are horrible. Anyway, after a week all of them are starting to leaf out. So, I don't think you have long to wait! Jackie...See MoreLilyfinch z9a Murrieta Ca
2 months agohaku84_zone9
2 months agohaku84_zone9
2 months agoKristine LeGault 8a pnw
2 months agoKristine LeGault 8a pnw
2 months agoVaporvac Z6-OhioRiverValley
2 months agoVaporvac Z6-OhioRiverValley
2 months agolast modified: 2 months agohaku84_zone9 thanked Vaporvac Z6-OhioRiverValleyhaku84_zone9
2 months ago
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