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Pear leaf blister mite

By Gardeners' World on 18/10/2011 15:45:40

The problem looks worse than it is. Miniscule mites secrete chemicals that cause blistering or blotches on the new leaves, which gradually turn blackish-brown. Although the mites breed prolifically, producing several generations over summer, the productivity of the tree isn't usu...


Apple sawfly

By Gardeners' World on 18/10/2011 14:31:47

When apple trees are in flower, the sawfly, Hoplocampa testudinea, lays its eggs in the developing fruit. In June, the larvae tunnel their way under the skin of the fruit and into the core, causing the apples to fall. When they're ready, they tunnel out of the apples, creating a ...


Wasps

By Gardeners' World on 19/10/2011 12:36:37

Wasps love feeding on soft, juicy fruit. They can break through the skins of grapes, peaches and plums, and quickly nibble out sizeable cavities, but fruit with tougher skins such as apples and pears must first be broken open by pecking birds before the wasps can enter.Small hole...


Woolly aphids

By Gardeners' World on 19/10/2011 13:32:22

White, waxy, sap-feeding aphids colonise cracks, crevices and pruning cuts on the bark of apple trees in the second half of spring. They then spread to new growth and create soft swellings. If the bulges split open in frosty weather, infections, such as canker, can set in.Congreg...


Carrot fly

By Gardeners' World on 18/10/2011 14:38:17

Creamy-yellow larvae hatch from the white eggs of the carrot fly, Psila rosae, and tunnel into the roots of carrots and other related plants, such as parsnips and celery. The damage creates brown scarring on the exterior of the taproots. Damaged roots are then susceptible to seco...


Leatherjackets

By Gardeners' World on 18/10/2011 15:27:34

Leatherjackets are the larvae of crane flies, or daddy-longlegs. The female fly lays up to 300 eggs in the lawn in late-summer. These hatch after a couple of weeks into grey-black, legless larvae that have a tough, leathery skin, hence the name 'leatherjacket'. From autumn throug...


Zebra spider

By Richard Jones on 24/04/2013 11:53:20

Although, yes, technically it is a spider, I’m almost positive that nobody could really be scared of the zebra spider, Salticus scenicus. It lacks all those sinister characteristics that can cause unease among some people — it isn’t black and hairy, it doesn’t have long legs, it ...


Bay leaf suckers

By Gardeners' World on 18/10/2011 14:33:48

insects - which have a fluffy white covering - carry on feeding on the sap, prolonging the problem. Prolific breeding in summer means the symptoms don't disappear. Young, winged, sap-feeding insects attack young bay foliage, discolouring and distorting it


Cuckoo spit

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

with the hose.roses, dahlias, fuchsias, lavender, rosemary and many garden plantsspring, summer, autumnMore common garden pestsCapsid bugsEuonymous scalePhormium mealybugScale insects


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


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