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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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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 .
What is the best way to control Box Blight? I have been using Octave and Eyetac 50 but it always seems to spread again. What can I do?
I had a cherry tree cut down some years ago but the base and roots were left in ground. I now discover that there is honey fungus creeping around the base. It is beside both my compost heap and some evergreen shrubs. Should I be worried? What is the best solution.
We have had a Cherry Blossom in our front garden, beside the gate, for approximately 23 years. We live in a three bed semi with an average sized garden. In the last two years one side of the tree has failed to produce leaves or blossoms. The other side appears to be healthy. Can you tell me what the problem is?
The upper surface of the leaves on my mature holly bush Golden King is covered with a black sooty mould, which can be washed off.A young small holly alongside is now similarly affected. Other evergreen shrubs alongside are NOT affected.Under surfaces of leaves have browny ? mites, and/or raised white patches. Can you suggest cause and solution please ?
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