310 ELEMENTARY STUDIES IN INSECT LIFE 



latter part of May. Wrapper of mosquito netting 

 around the lower portion (about two feet high) of 

 trunk, tied at the top and hilled up against at the bot- 

 tom. Whitewash upper part of trunk. 



Remedy. -Dig out borers with a sharp knife and 

 strong wire probe. 



APPLE-TREE BORER, FLAT-HEADED. -(Chrysobothris 

 femorata Fabr. ; order Coleoptera. A shining green- 

 ish black beetle, a little less than half an inch long. 

 The larva can be found in trunk and larger branches. 

 May be detected by discolored spots, cracking of bark, 

 or appearance of sawdust. Mature larva, pale yellow, 

 head end greatly enlarged and flattened. 



Preventive and Remedy. Same as for Round- 

 headed borer. 



APPLE FLEA BEETLE. (Graptodera foliucca Lee.; 

 order Coleoptera.) Beetle one-fifth inch long, feeding 

 upon leaves. 



Heinedy. Arsenites. 



BARK-LICE (especially Mytilqspis sp., Aspldlotus sp., 

 Chionaspis sp. ; order Hemiptera). Mite-like insects, 

 crawling in early spring; later becoming stationary, 

 and secreting a waxy scale. (See page 1ST.) 



Preventive. -Plant unaffected trees. 



Rem-edij. Spray with kerosene emulsion during 

 growing season ; with crude petroleum during dormant 

 season. 



BUD MOTH. ( Tmetoeera ocellana Fabr. ; order 

 Lepidoptera.) A minute moth, the larvtr of which de- 

 stroy the flower-buds of apples, pears, plums, etc. 



Remedy. Arsenite sprays applied as buds begin to 

 open, and then ten days later. 



