324: ELEMENTARY STUDIES IN INSECT LIFE 



Hemiptera.) A good-sized brown scale insect. During 

 the summer months a large cottony egg-sac appears 

 from the posterior end of the female. 



Remedy. Spray with crude petroleum, during the 

 dormant season. 



MOSQUITO. (Family Culicida?; order Diptera.) A 

 long, slender fly. The females have strong, piercing 

 mouth-parts used in piercing the cuticle of man and 

 other animals. 



Preventive. -Keep cisterns and rain-barrels well 

 covered. The surface of all ponds and small pools of 

 water in the vicinitv, when not drained, should be 



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coated during the breeding season with kerosene, since 

 these insects breed in rain-water. 



Pea. PEA WEEVIL. (Bruchus pisi Linn.; order 

 Coleoptera.) Very similar to Bean Weevil. See under 

 B. Same remedies. 



Peach. -(Aphis pcrsicce Smith; order Hemiptera.) 

 A dark-brown plant-louse, attacking tops and roots. 

 More abundant in sandy lands. 



Remedies. - Kerosene emulsion for tree colonies. 

 Tobacco-dust placed in trench around roots of trees for 

 root colonies. 



FLAT-HEADED BORER. See under Apple. 



FRUIT BARK BEETLE OR PIN-HOLE BORER. (Scoly- 

 tus rugulosus Ratz. ; order Coleoptera.) A black beetle 

 which bores into trunks and branches of peach, plum and 

 apricot trees. It is about one-tenth of an inch in length. 



Remedies. -Hum the affected trees, since this beetle 

 shows preference for weak or sickly trees. Keep trees 

 strong and healthy. 



