/GARDENERS, MUSHROOM GROWERS, AND 



vJ TRUCKERS frequently observe irregular holes 

 in the foliage of such crops as lettuce, tomato, peas, 

 and beans, either grown under glass or in the open, 

 and mushrooms from which holes have been cut as 

 by a mouse or rat. By close observation a glistening 

 whitish substance will be seen on the plants or near 

 by, and search under stones, old boards, and rubbish 

 will disclose the cause of the injury the garden slug. 



Attack is most severe on delicate seedlings, but 

 various tubers and roots are subject to injury. Pota- 

 toes are bored into and celery is frequently damaged 

 during the bleaching process. 



Garden slugs are not insects, although their injury 

 is similar and they are sometimes called insects. 

 They are mollusks and therefore related to the snails, 

 although they have no external shell. 



This bulletin describes the habits and development 

 of the spotted garden slug and explains how to rid 

 the premises or grounds of this destructive and other- 

 wise undesirable tenant. The standard remedies for 

 this and the other injurious garden slugs are lime, 

 finely powdered salt, road dust, or other powders. 

 Poisoned baits consisting of boiled potatoes or sweet 

 potatoes sprinkled with arsenic are useful. The gar- 

 den and greenhouse should be kept clean and free 

 from rubbish and the slugs should be collected at 

 night when they emerge from their hiding places. 



