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Control methods (Rosy leaf curling aphid)

Chemical control A localised application of an approved insecticide should be considered where the pest is detected. If only rosy leaf curling, rosy apple or apple grass aphid are to be controlled, then  flonicamid (Mainman) is likely to be a good choice …

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Further reading - Rosy leaf curling aphid

Barbagallo, S., Cravedi, P, Passqualini, E, Patti, I, & Stroyan, H. L. G. 1997. Aphids on the principal fruit bearing crops. Bayer, Milan.123pp Minks, A. K. & Harrewijn, P. 1987. Aphids, their biology, natural enemies and control. World Crop Pests, …

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Rosy leaf curling aphid (Dysaphis devecta (Walker))

Rosy leaf curling aphid is a widely distributed but localised minor pest of apple. Infestations occur on the same trees (often older trees with rough bark) year after year and spread from tree to tree is slow.  The life cycle   involves overwintering on …

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Life cycle (Blastobasis moth)

There is one generation per annum in the UK with a very small partial second flight of adults in the autumn and early winter. Adults of the first main generation fly in June and July, about the same time as codling moth. Eggs are laid (on average 70 per …

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Other hosts (Blastobasis moth)

Apple and beech appear to be the main hosts in the field. The pest can be abundant in beech hedges, which can act as a source of infestation for apple orchards. In the laboratory, the larvae will feed on the leaves of a wide range of plants including …

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Varietal susceptibility (Blastobasis moth)

It is probable that all apple varieties may be attacked but there are considerable differences in the susceptibility of different varieties: Varieties with fruits that are short stalked and/or which hang in clusters and where dead leaf and flower debris …

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Distribution (Blastobasis moth)

A native of Madeira, it was first found in Britain in 1946 initially restricted to the London area. Now widely distributed and locally common especially in beech hedges and apple orchards in some …

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