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The Pamphlet Collection of Sir Robert Stout: Volume 14

Prevention

page 14

Prevention.

It is supposed by Curtis and considered most probable by Miss Ormerod that the eggs of this fly are laid in manure. In this case the grubs or larvæ are taken with the manure close to the roots of the hop plants. Manure heaps or mixens lying in the neighbourhood of recent attacks, or where flies have appeared, should be carefully turned and treated with lime.