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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Apple and pear suckersApple sucker . (Schmidberger)) used to be one of the more serious pests of apple, but nowadays it is so well controlled by routine sprays that infestations are rarely seen except in gardens or unsprayed cider orchards.

Gyrate

Cabbage aphidCabbage aphid . (L.)) is a common and destructive pest which in some seasons causes serious losses of broccoli, Brussels sprouts, cabbage, cauliflower, oilseed rape and swede. By the time a crop has become heavily infested serious injury will already have occurred, so attacks must be checked early.

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Thrips on peasThe small insects known as thrips, or thunderflies, are abundant in Britain and some of them can cause considerable damage to cultivated plants.Different species breed on grasses and cereals and on fruit, vegetable and flower crops. Two species that attack peas are described here.

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Capsid bugs on fruitasional pest of this crop in gardens and unsprayed orchards. The common green capsid . (L.)) is a much more common species and attacks cane and bush fruits, occasionally strawberry, a wide range of shrubs and herbaceous plants and, to a lesser extent, apple, pear and other tree fruits.

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Gladiolus thripsat some time during the summer in most years. During cool, wet conditions attacks are less severe, but the thrips population can survive at a low level and build up again under more favourable conditions unless control measures are taken.

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Book 1992eaflets has been altered more that the final editions of the crop pest advisory extensively. Thus, Chafer grubs (Chapter 32) leaflets should be produced in a bound volume now incorporates material from Leaflet 449, for the benefit of future agricultural entomolo- Japanese beetle, which has been omit

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Der Informationsbegriff in der Physikof the insects, and methods used to control them. Initially the information was confined to 16 insect species, but the coverage was soon extended to other injurious insects and later to other crop pests, including birds.