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Powdery mildew

By Gardeners' World on 19/10/2011 13:55:35

There are many different fungi that cause this problem, each of which usually affects a particular plant or group of plants. In each case they produce similar symptoms. Affected plants will have discoloured leaves, often also distorted when young


Capsid bugs

By Gardeners' World on 18/10/2011 14:36:54

flower buds might never open, or do so unevenly.When disturbed, the bugs quickly drop to the ground or fly away, so you'll have to be quick if you want to catch and squish them. Remove their hiding places by keeping the area under plants free of debris


Leafcutter bees

By Gardeners' World on 18/10/2011 15:15:14

to the same plant. It's only a significant problem when young plants are being defoliated or you're growing specimens for a show. Bees snip out elliptical sections of leaf margins, particularly on roses, and use them to make thimble-shaped cells in their nests


Leafhopper

By Gardeners' World on 18/10/2011 15:25:46

.a range of ornamental plants, trees, shrubs, herbs, some vegetables, fruitspring, summerMore common garden pestsAphidsScale insectsFlea beetleEarwigs


Aphids

By Gardeners' World on 18/10/2011 11:18:16

of these are available as biological controls, however, they need time to tackle the problem, so don't expect them to hoover up the aphids overnight. Small clusters of aphids can be squished with your fingers or washed off with a strong jet of water. Insecticidal soap


Magnesium deficiency

By Gardeners' World on 19/10/2011 13:47:01

-magnesium carbonate to the soil in autumn or winter to remedy the deficiency for next year.potatoes, apples, cherries, grape vines, tomatoes, camellias, rhododendronssummer, autumn, winterMore common plant problemsCanna virusRaspberry nutrient deficiencyHollyhock rust


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


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