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Acer tar spot

By Gardeners' World on 10/10/2011 11:32:51

, but the health of the tree won't suffer.An outbreak of shiny black blotches, edged in a ring of yellow, disfigure acer leaves in early summer. This can lead them to fall prematurely.Rake up and dispose of all fallen infected leaves. As a preventative measure use


Peach leaf curl

By Gardeners' World on 19/10/2011 13:52:31

for the plant and in its weakened state, the flowers and fruit fall off. Trees may recover sufficiently to make a second flush of growth and these leaves are usually unaffected by the fungus. Fungus survives on fallen leaves and branches to re-infect next season


Apple and pear scab

By Gardeners' World on 10/10/2011 11:34:22

on infected stems and branches. The most serious consequence of scab is reduced vigour of the trees caused by early leaf fall. This may limit the crop of fruit. The disease also causes scabs on the skins of fruit, although they are still edible. A preventative


Horse chestnut scale insect

By Gardeners' World on 19/10/2011 13:38:40

, which can encourage sooty mould to develop. It's more of a problem in urban areas where temperatures are higher.Scrape the eggs off by hand and move them to an alternative tree, or destroy them.Spray with an insecticide containing imidaclprid


How to make willow plant supports

By Gardeners' World on 22/07/2011 12:29:57

Pliable, young willow stems are the perfect material to use for making plant supports. Easy and quick to assemble, willow supports are attractive features in their own right, before they are eventually hidden by lush plant growth.Willow stemsBamboo canesSecateursGarden twine or s...


Cuckoo spit

By Gardeners' World on 18/10/2011 14:42:19

Protected from predators and the risk of dehydration inside its moist ball of bubbles, the juvenile yellow-green froghopper (or spittle bug) is busy sucking plant sap. It's quite harmless unless it's attacking the shoot tips, which can result in distorted growth. The adult frogho...


How to make Christmas decorations

By Gardeners' World on 19/07/2011 14:29:07

These pretty outdoor tea light holders are made from birch logs, which you can often obtain from tree surgeons. The best size to go for is around 10cm in diameter, which is ideal for holding a tea light. Choose different heights for your tea light


How to plant a small tree

By Gardeners' World on 22/07/2011 12:02:16

A tree will add height, colour and architectural interest to a garden scheme and, if planted properly, should provide many years of enjoyment. In winter, bare-rooted plants become available - a cheaper alternative to ones in pots. Winter


Fasciated shoots

By Gardeners' World on 18/10/2011 11:05:43

The distortion, known as fasciation, is a freak of nature, and often looks like several stems have been fused together. It's a rare phenomenon and does the plant no lasting harm. It can develop on a range of shrubs, flowers and perennials. The cause could be environmental, such a...


Thrips

By Gardeners' World on 19/10/2011 12:32:09

These miniscule sap-sucking insects multiply rapidly on leaves. Large colonies are immediately evident, as are the symptoms - silvery-white discoloration of the leaves and distorted shoot tips and buds.Packed clusters of tiny white insects on leaves produce several symptoms. The ...


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