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The Pamphlet Collection of Sir Robert Stout: Volume 14

Prevention

Prevention.

After an attack the land should be cleaned from all rubbish and deeply ploughed at once, as the larvæ remain in the soil during the winter. A dressing of lime would be most advantageous in serious cases. Care should be taken not to sow another leguminous crop after an attack.

Clover fields literally swarm with these insects in some seasons. It would be highly dangerous to put peas, or beans, or tares in after clover in these circumstances, but this is an unusual course of cropping. As the weevils have been found in wheat stubbles after harvest, in land sown with wheat after clover, it is desirable not to put trifolium in after wheat without cultivation, as is often done. Trifolium crops have been materially injured by these Sitonæ.

Miss Ormerod recommends putting coal ashes saturated with soluble phenyle, diluted in the proportion of two table spoonfuls to ten gallons of water, into the drills or rows when peas and beans are sown. Ashes, sawdust, or earth saturated with paraffin would answer the same purpose, and might be used upon a large scale.