Titlebook: Crop Pests in the UK; Collected edition of Marion Gratwick Book 1992 Springer Science+Business Media Dordrecht 1992 Coleoptera.Crustacea.Di

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Chauvinistic

,Regelung und Führung von Windkraftanlagen,), the potato aphid (. (Thomas)) and the glasshouse and potato aphid (. (Kaltenbach)); a fifth, the violet aphid (. Laing), may occur in large numbers on senescing and blight-damaged foliage in late August and September. A sixth species, the bulb and potato aphid (. (Davidson)), occasionally infests

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茁壯成長

,Regelung und Führung von Windkraftanlagen,p, celery, parsley and other cultivated umbellifers such as chervil and fennel can also be attacked by this aphid and the willow—parsnip aphid (. (Gillette & Bragg)). The willow—carrot aphid overwinters in the egg stage on willow trees, especially the crack willow (. and the white willow (., and als

indigenous

Helmut Eichlseder,Manfred Klell, is the gladiolus thrips (. (Morison)). This thrips also feeds on several other flower bulb crops including freesia, iris, lily and montbretia. It was first recorded in Britain in 1950 and has since spread to many areas. In the warmer, drier districts, gladiolus crops are likely to become infested

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Urea508

Apple aphidsare described here: the rosy apple aphid . (Passerini)), the rosy leaf-curling aphid . (Walker)), the green apple aphid . Degeer) and the apple—grass aphid . (Walker)). The fifth species, the woolly aphid, is described on page 78.

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