312 ELEMENTARY STUDIES IN INSECT LIFE 



the insect feeds upon the branches. The woolly white 

 covering is present here also. 



Preventive. -Plant unaffected trees. 



Remedies. -Hot water. Roots of nursery stock may 

 be dipped in water having a temperature of 120 to 

 150 F. Kerosene emulsion or tobacco-dust poured in 

 trenches around the roots of orchard trees. 



TENT CATERPILLARS. ( Clisiocampa Americana 

 Harris; order Lepidoptera.) Hairy blackish larva? 

 about two inches in length, white stripe along back, 

 feeding on the leaves in May and June, emerging from 

 silken webs or tents in which they spend the time not 

 occupied in feeding. 



Remedies. Cut off egg-covered twigs during winter 

 and early spring. Burn out or remove nests. Spray 

 with arsenites. 



TUSSOCK MOTH. - - ( Orgy la leucostigma Sm. and 

 Abb. ; order Lepidoptera.) A bright yellow caterpillar, 

 with red markings about an inch long; very hairy. 



Remedies. Collect foamy egg-masses in fall. Spray 

 with arsenites. 



Apricot.-- PIN -HOLE BORER. ( tfcolytus rugulosus 

 Ratz. ; order Colcoptera.) See under Peach. 



PLUM CURCULIO. See under Plum. 



Bean. BEAN WEEVIL OR BEAN BUG. (B ruckus oi- 

 ler fits Say; order Coleoptera.) Very similar to pea 

 weevil. A small brown-black beetle. The beetles ap- 

 pear in fall and spring, and lay eggs in young pods. 

 The larva- or grubs live in growing seeds. 



ReinriUcs. As soon as mature beans are picked, 

 place them in temperature of 145 F. for an hour; 



