ORCHARD INSECTS 



293 



neglected and stunted orchards where grass and weeds are 

 allowed to grow up. 



The adults are handsome beetles about three-quarters 

 of an inch long with long antennae, silvery white beneath and 

 light brown above marked with two white stripes. The 

 females emerge from late May to mid-July and lay their 



FIG. 211. The round-headed apple-tree borer (Saperda Candida Fab.) 

 larva, adults, and exit hole natural size. (After Rumsey and 

 Brooks.) 



eggs in the bark of the trees. The larvae hatch out two or 

 three weeks later and feed on the sap-wood just under the 

 bark, working down toward the base of the tree. The next 

 year the larvae work in the sap-wood and the third season 

 they penetrate into the heart-wood and will often riddle a 

 small tree with their cylindrical burrows. The third spring 



