INJURING THE LEAVES. 115 



They then die, and in a few days the eggs hatch into 

 small, dark-colored larvae that feed upon the foliage. 

 As they grow older they gnaw irregular holes in the 

 leaves, giving them a ragged and unsightly appear- 

 ance (Fig. 52, a). When fully grown (three or four 

 weeks after hatching) they are about three-tenths of 

 an inch long, brown in color, with six legs, and four 

 or five black dots on the back of each ring or seg- 

 ment of the body. The head is black, and there are 

 numerous hairs on the body. One is shown some- 

 what magnified at 6, Fig. 52. When fully grown 

 the larvae leave the vines, and, entering the soil, form 

 earthen cocoons (c), within which they change to 

 pupae. A kw weeks later they again transform and 

 emerge as perfect beetles. These also feed upon the 

 foliage and lay eggs for a second brood of larvae. 



Remedies. — Spraying with Paris green (3 ounces 

 to 50 gallons water) is probably the best remedy for 

 this pest. They may also be destroyed by pyreth- 

 rum or insect powder. On cool mornings the beetles 

 are quite sluggish, and may be collected by jarring 

 them on sheets. 



The Rose Chafer. 



Macrodactylus subspinosus. 

 This insect has been known for nearly a century 

 as a serious enemy of the horticulturist. It is dis- 

 tributed over a large portion of the United States, 

 but appears to be injurious only in certain localities 

 where areas of low, sandy bottom-lands offer unusual 



