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- Q.Photinia Disease - I bought a couple of plants yesterday which had black spot on the leaves. The salesman said they just ...
- Q.Why Do Some Photinia Bushes Have Prolific Blooms And Others Have Few Or None? - We have large photinia bushes that are covered with white blossoms and other bushes that have no blossoms only the ...
- Q.I Have Sprayed My Photinias For About 5 Years With Success. I Thought I Had Some Of The Spray But Don’t. I Don’t Remember The - name, but pretty sure it was in a big gray container. what do you spray Red Photinias with? For the ...
- Q.I’ve Pruned My Photinia At The Wrong Time - I've just pruned back my Photinia (end October) and realised this should not have been done after August!! Will it ...
- Q.What Time Of Year Would You Advise Me To Coppice My Photinia In Melbourne As It Has Grown Far Too High. - Am desperate to do this ASAP.
- Q.Propagating Photinia - Read your article and I am new to the plant and the area I'm living. (Just moved) I don't know ...
- Q.I Have A Photinia Red Robin Tree.How Can I Help It Survive As I Have Very Wet Clay Soil ? - I planted this last September. As we had lots of rain over winter it has been sat in puddles of ...
Asked by
Anonymous on
February 5, 2019Q.photinia disease
I bought a couple of plants yesterday which had black spot on the leaves. The salesman said they just needed planting out straight away as they were stressed, and the new growth would soon replace the diseased old growth. Is this likely? If so I will get some more as they were greatly reduced...
- Answered by
drtreelove on
February 6, 2019A.The black spots are most likely "entomosporium leaf spot", a fungal disease common with Photinia, India hawthorne, evergreen pear and some other plants.
The nurseryman's advise may or may not prove accurate, as this disease can spread by rain and wind blown spores from the existing infections on older leaves, to the new leaves in spring.
The old-school recommendation is to spray with a chemical fungicide, of which I find the systemic fungicide 'Banner Maxx' (or a generic brand with the active ingredient 'propiconazole') to be effective, depending on stage of growth, climate and timing of the applications.
The newer generation of organic-program-compatible materials should be considered. I have effectively used a biological fungicide for leaf spot, but it is preventive and not so much a cure, so you must start early as new leaf buds form and start to break open. I use Double Nickel Biofungicide/Bactericide from Certis USA, or a Monterey brand equivalent like this:
https://www.domyown.com/monterey-complete-disease-control-readytouse-p-17485.html
You will have to search for what is available in the UK.
Hope that helps, DonWas this answer useful?00
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- Asked by
donpifer on
April 20, 2019
95677Q.Why do some photinia bushes have prolific blooms and others have few or none?
We have large photinia bushes that are covered with white blossoms and other bushes that have no blossoms only the red leaves. why is that? I have no photos.
- Answered by
Downtoearthdigs on
April 20, 2019A.You could have some differences in nutrients in the soil.
This article will help you.
https://www.gardeningknowhow.com/ornamental/shrubs/photinia/red-tip-photinia-fertilizer.htmWas this answer useful?00 - Asked by
Anonymous on
April 28, 2019Q.I have sprayed my Photinias for about 5 years with success. I thought I had some of the spray but don’t. I don’t remember the
name, but pretty sure it was in a big gray container. what do you spray Red Photinias with? For the last 5 years I have used a spray in a gray container but can't remember the name. I thought I had some here but don't.
- Answered by
Downtoearthdigs on
April 29, 2019A.What are you spraying for?
For most pest issues we suggest Neem Oil.
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
Was this answer useful?00 - Asked by
Anonymous on
October 31, 2019Q.I’ve pruned my Photinia at the wrong time
I've just pruned back my Photinia (end October) and realised this should not have been done after August!! Will it survive the winter or should I wrap it? It is well established and had become invasive but lovely. HELP
Answered by
GKH_Susan on
November 3, 2019
Certified ExpertA.I looked up average minimum temperatures for your area and it doesn't appear to get below freezing. So that is good news for your shrubs. The new growth should survive. New growth may be susceptible to a fungal disease, photina leaf spot, so I'm including information about that as well as pruning.
Also, if you pruned each stem all the way to the branch it came from, you shouldn't have new growth. Just trimming off across the top, however, will encourage new growth.
https://www.gardeningknowhow.com/ornamental/shrubs/photinia/pruning-photinia-shrubs.htm
https://www.gardeningknowhow.com/ornamental/shrubs/photinia/photinia-leaf-spot.htm
Was this answer useful?00- Asked by
Anonymous on
December 11, 2019Q.What time of year would you advise me to coppice my Photinia in Melbourne as it has grown far too high.
Am desperate to do this ASAP.
- Answered by
GKH_Susan on
December 12, 2019
Certified ExpertA.Photinia will tolerate hard-pruning about any time! Rejuvenate when the shrub doesn't color up like it should or when it looks overgrown or scraggley.
This article will give you more information: https://www.gardeningknowhow.com/ornamental/shrubs/photinia/rejuvenating-red-tip-photinia.htm
Was this answer useful?00 - Asked by
Anonymous on
March 30, 2020Q.propagating photinia
Read your article and I am new to the plant and the area I'm living. (Just moved) I don't know how to propagate a photinia. The article said to cut 3 segments or 3 nodes. Would that be a stem with 3 different branches. Thank you for any information you can give me.
- Answered by
GKH_Susan on
March 30, 2020
Certified ExpertA.A node is anywhere that a leaf resides. If it is old enough for the leaf to have fallen off and a branch to be grown in its place then it will still be considered a node. You really want to try for single branch tips, since they root much easier, and faster. As long as you can leave 3 leaves intact and still have enough room to insert it in the soil, then you will be good to go.
Was this answer useful?00 - Asked by
Carolyn Musgrove on
April 27, 2020
BlackpoolQ.I Have A Photinia Red Robin Tree.How Can I Help It Survive As I Have Very Wet Clay Soil ?
I planted this last September. As we had lots of rain over winter it has been sat in puddles of water. Most of the leaves have fallen and the ones which are left are brown. The new growth that had started is now dead.. I have added manure to the soil. Should I prune back to encourage new growth? Any help would be appreciated. Thanks
- Answered by
BushDoctor on
April 29, 2020
Certified ExpertA.Adding high nutrient fertilizer during stress can make the problem worse. The treatment for the situation is going to be very stressful, as well.
The soil will need to be amended to make it hold less water. If the soil remains the same, and retains water, then treatment will fail.
These articles will help you to amend the soil:
https://www.gardeningknowhow.com/special/organic/the-importance-of-soil-for-an-organic-garden.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/improving-garden-soil.htm
Once the soil has been corrected, the small tree can be replanted and treatment for fungal and bacterial infections can begin.
These articles will help:
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/special/organic/biofungicide-information.htm
https://www.gardeningknowhow.com/garden-how-to/info/homemade-fungicide.htm
https://www.gardeningknowhow.com/garden-how-to/info/applying-bactericide-to-plants.htm
This article will help with the care of the shrub once replanted (This may be with a fresh shrub, in the case that this one does not survive.):
https://www.gardeningknowhow.com/ornamental/shrubs/photinia/growing-red-tip-photinia.htm
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