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Tiny sap-sucking scale insects. They are 1-6mm long, and their whitish, grey-brown shells are covered by protective, waxy scales. The insects don't cause too much damage unless they are present in huge numbers, but some excrete an unsightly, sticky

Turn over a leaf and you'll see 2mm long white flies. With a life cycle of just three weeks, whitefly breed very fast. Both adults and offspring are sap feeders and a severe attack will weaken a plant. They excrete the sticky excess, called honeydew

and Their Haunts by the Rev. C.A. Johns, was published in 1862 by the Society for Promoting Christian Knowledge, on the back of his success with Flowers of the Field (1851). Both books were in print for over a century, and it's easy to see why.To start, Johns

This Saturday (30 October) is RSPB Feed the Birds Day. To celebrate, I gave my feeders a good wash with hot water and disinfectant and bought some expensive bird seed. The birds, still busy eating aphids from the trees in the local park, are none

cypress aphid (No. 10) with civil words and offers of a cup of tea.

are sprouting and they are adrift with aphids - I shall look forward to the attentions of hoverflies and ladybirds soon. A single specimen of the rose leafhopper Edwardsiana rosae tried to play hide and seek by sidling around to the other side of a leaf

to encourage good cross-pollination between plants, each plant needs space to grow. This year each plant is at least 30-45cm (12-18in) from its neighbours, which should be enough.I'm trying a few varieties this year, including 'Swift', which is described as "an

have dropped low enough to kill off some overwintering pests such as the woolly aphid I discovered on my apple trees last summer. The problem is that frost isn't that discerning, and unless beneficial insects like ladybirds are even hardier, or have

. This will be fascinating if it comes off. Although the Japanese harlequin ladybird, Harmonia axyridis, has been released in Europe to combat alien aphids, it arrived in Britain under its own steam, or accidentally with horticultural material. It is now (perhaps rather

europaea) are the most delicious colour when young and feel soft and slightly damp and newborn. Sadly they quickly become leathery and the home of many millions of aphids which then proceed to drip honeydew onto anything parked beneath them.Spring is here