Abstract

RECENT INJURY. Nearly every year cherry and plum trees in Iowa suffer much injury by the common pear-slug. While the control of this insect has never been considered a difficult problem, yet it happens frequently that foliage is greatly damaged before one is aware that any slugs are present. Serious damage is sometimes caused to cherry trees. Young cherry trees in the town of Ames have been killed as a result of defoliation following the injury by the slugs.

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