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Over the years, Gerry has answered more than 5,000 of your gardening questions. His knowledge is based in science and practical experience, and by working on radio and television.
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We have a beech hedge in front and back garden, it is covered in something like greenfly. At the moment cannot even trying cutting it, as there are millions of these flys on it. What would you suggest, we have tried spraying with suddy water, and spray to kill greenfly cannot remember the name of the spray, but because there are so many, nothing seems to work.
Evergreen tree which has been burnt in sections, Not sure why or how to rectify it, do i need to cut it down or remove bad sections
There' s white growth on dead roots of frost-killed Viburnum (winter 2010) Is this harmful especially to young Variegated Privet planted last Spring? To the soil in general?
Variegated Privet hedge planted last Spring. Was flourishing with plenty of leaf up to c. end Nov. Loss of leaf completely spreading from ground upwards. Normal? If so does this mean I'll have no hedgecover for 3to 4mnths annually?Or are plants dying?
I have attached photos of my Fuschia Gertenmeister, which as you can see from the photos has damaged leaves, can you please give me advice on this. No insects have been spotted on the plant but holes are obvious.
There is a silver birch tree in my garden which appears to be decaying. please see the attached picture. Do you think that the tree should be cut down or is it possible to save it somehow. Also, if it is a prevalent disease, is it possible to prevent it spreading to other trees? It would be great if you can answer soon as I am concerned that the tree may fall down.
Acer Palmatum. Roughly 20 years old. Last 2 yrs. has lost leaves early and now has lots of dead twiglike branches. Was told to leave it last year and feed it in spring. Situation is bad now. Fungus was mentioned as the cause. There is also a False Acacia near with the same problem and on BBC Gardening same tree with film was shown. Fungus was given as reason. Is this the same for the Maple and is there any hope?
Some of my fuschias have faded yellow coloured leaves with black spots which are falling off, is there a reason for this, rest of fuschias are fine.
I'm looking to buy ladybirds (or larvae) to control greenfly on roses. They have all disappeared from our garden in recent years. Is this advisable? If so, what kind of ladybirds should I look for and where might I get them?
Our AZARA INTEGRIFOLIA small tree has developed a fungus spreading rapidly up the trunk. I enclose photo. Can you identify it for us and suggest if we can possibly cure it? If we lose it, is it safe to re-plant a tree on the same spot as it forms a cover for us? Thank you, Clare
I have a 2 thuja occidentalis smarged, 11 years planted in my back garden they are about 13 feet tall, and planted quite close to each other, they'er in a sheltered spot near a corner wall, there is euphorbia planted in front of them, they have turned brown in alot of places and when I touch it lumps of it fall off, this brown is spreading to the top. about 30 percent of each tree is affected. Local gardener told me to treat them with epsom salts disolved in 2 gallons of water which I did today.
I planted 80m of potted green holly Sept 2010 to form hedge. well prepared trench compost and mosspeat, with leaky hose at back, used initially until plants settled in. did very well, lots of new growth in 2011. black leaves and branches appearing this winter in some plants with leaf loss.sheltered site, east facing beside old ditch. any advice
I have an Aucuba which is going black, I have cut out the dead branches but the rest of the plant is now going black. Should I dig out the plant and if I do will I be able to replace it with another Aucuba? It is planted in a shady spot and was doing very well. I have attached some photographs. Seppie
What type plant would travel through the bare frame of the hedge with plenty of colour on a yearly growth.
I've recently discovered coral spot on my two maple trees . I made a pruning cut to eradicate this problem. My question is , will there be a good chance of this disease coming back ? i've checked the trees and they seem healthy to me .
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