HELP w/ Photinia - Leaf Spot Disease
jreincke
18 years ago
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rhizo_1 (North AL) zone 7
18 years agogardengal48 (PNW Z8/9)
18 years agoRelated Discussions
Help with leaf disease
Comments (5)Hey, Calvin. I agree that moving air should help prevent outbreaks on other plants. Physan should work on that kind of problem. It's not a systemic, but it does work against rots, and it is available in Canada, per the Canadians on another board. Url to page listing Physan distributors below. repotme.com and Oak Hill (scroll down) claim to be international distributors via the internet. Physan isn't a systemic, it's a contact product, and only works for a few days at a time, but that's usually enough to keep something from advancing. I keep a spritz bottle of it around for spraying crowns, spots, black root nubs, whatever. Seems to work. (See the discussion of physan for stopping crown rot at Al's Orchids http://orchidexchange.com/Photos/stemrot.htm I have also used cinnamon rubbed into little pits (rub on both sides), and this seems to work also. While you are figuring out what to use, or getting it, try the cinnamon. Won't hurt and may help. Here is a link that might be useful: physan distributors...See MorePhotinia serrulata (Chinese Photinia)
Comments (3)I absolutely love this shrub (Photinia x fraserei "red tip") Locally, it is usually not sold around me (or grown in gardens). Don't think growers realize how cold hardy they really are (should be perfectly hardy at least into 6b). Several years ago, I purchased one I happened across one in a local nursery. This shrub just took off in the ground--unbelievely fast growth! It went from maybe a foot to over nine feet in a matter of a few years despite regular pruning and without fertilizing! It grow WIDE horizontally as well with foliage all the way down to the ground. I pruned it fairly heavily every spring and again (more lighter) in the summer. In fact, I recently moved into another house and wanted to replace all the half-dead, old privet hedges. I have planted a row of Photinia along side the privet with the intention of creating a formal hedge of photinia. I have never seen any leaf spot on it (nor has it ever shown any winter burn). Though I don't live in the South, humid and wet weather here is common. If leaf spotting is a concern, I wonder if you could spray something on it to discourage the problem. Good luck!...See Morespots on photinia...help!
Comments (5)The fungicide for photinia leaf spot serves a protective purpose. In other words, it protects new growth from becoming infested. I'd say that the nurseryman you spoke with was being rather dramatic when he said the trees would die in several years. Here in the PNW, photinia are affected every year. And I would suspect the NW infections are more extensive thn those in your region, simply because our climate is more wet than yours. Our photinia trees/shrubs live many years in spite of the problem, although I must admit that they can look rather nasty if in a site favorable to infetion.. In OR, the suggested sprays for homeowner use are any of these: Daconil; Hi-Yield Vegetable, Flower and Ornamental Fungicide; Immunox; Systemic Fungicide (ferti-lome); or Rose Pride Funginex. Because the trees are so important to you, consider hiring a certified arborist to spray because they have equipment you don't. Look for a certified arborist in the Yellow Pages under the heading of Trees or Tree care. Companies that have a certified arborist say so in their ad. The appropriate time to spray is in early spring when the new shoots are developing. In oher words, protect new growth from becoming infected. Also useful for limiting infection are good air circulation (thinning the trees might help); keeping the leaves as dry as possible; and full sun exposure. Also remove and destroy affected leaves....See MoreHelp, my ligustrums are dying. Yellowing badly w/ leaf spots
Comments (0)Hey everyone! I have two ligustrum hedges, one on each side of the house. One side = perfectly amazing growth. The other side = horrible (except for 1 of them, see pics). All the shrubs came from the same grower, purchased at the same time, planted the same day. They are 8 years old. Large full size photos: https://goo.gl/photos/wqsEd6s8VwSrzV2F8 As you can see, there is only ONE of the ligustrums in the middle there that actually is doing well. No idea why. The others are yellowing and dying. Granted, this side of the house has always had slower growth, but this is the first year I am afraid for their lives. Any thoughts would be greatly appreciated. Thank you!...See Morejreincke
18 years agojean001
18 years agojuliang
17 years agobrizzyintx
16 years agobrizzyintx
14 years agotriaxt32_hotmail_com
14 years agobrizzyintx
13 years agoprogressiveenlightenment_live_com
13 years agogardengal48 (PNW Z8/9)
13 years agonativetexas
7 years agolast modified: 7 years agogardengal48 (PNW Z8/9)
7 years agoshekar_ha
6 years agolast modified: 6 years agomaureeng53
6 years ago
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