HAIRY CATERPILLARS EATING THE LEAVES 181 
The pupal stage is passed in the soil. The only means of control avail- 
able is deep fall plowing. 
Rose Slugs 
Three species of * slugs,’ the larvee of sawflies, commonly infest the 
foliage of roses in this country. The surface of the leaves may be 
skeletonized, as with the native American species, Endelomyia rose 
Harr.; or holes may be eaten in the leaves, as with an imported species, 
the Bristly Rose Slug, Cladius pecti- 
nicornis Fourer; or the larva may 
attack the edge of the leaf, eating 
out large sections, as with another 
imported species, the Coiled Rose 
Slug, Emphytus cinctus L. 
Either arsenate of lead or Paris 
green will readily poison the slugs. 
Or, they may be dislodged by a pyg. 215.—The Yellow-bear Cater- 
strong stream of water. pillar. Original. 
The Yellow-bear Caterpillar (Diacrisia virginica Fab.) 
Rather large and hairy eaterpillars attack the leaves of a great 
variety of vegetables as well as many kinds of weeds. Usually they 
are not abundant enough 
todo serious injury. A full- 
grown caterpillar is 2 inches 
long. The hairs arise in 
tufts on the back and sides, 
and vary from light yellow 
to brown. The adult is a 
light-colored moth, expand- 
ing 13 to 14 inches, marked 
with a few small dark 
Fic. 216.— Adult of the Yellow-bear Cater- 
pillar. Original. 
dots. There are two gen- 
erations, the second lot of 
caterpillars appearing in August or September. 
Hand picking will suffice to control this insect when present in moder- 
