36 HORTICULTURIST'S RULE-BOOK. 



PEACH-LOUSE or APHIS (Myzus Persicce, Sulzer). A small 

 insect feeding upon the young leaves, causing them to curl 

 and die. 



Remedies. Kerosene emulsion. Soap-and-soda wash. 

 Soap-water. Soap and tobacco. 



PEACH-TREE BORER (Sannina exitiosa, Say). A whitish 

 larva, about three-fourths inch long when mature, 

 boring into the crown and upper roots of the peach, 

 causing gum to exude. 



Preventive. Make a mound about the tree in early 

 summer, a foot high, and remove it in September ; the 

 moth then lays her eggs about the top of the mound, and 

 the tender larvae are killed by exposure to the weather. A 

 coat of asbestos roofing applied about the base of the tree is 

 recommended as a preventive. Apply washes as for apple- 

 tree borers. Paint the crown of the tree with ordinary 

 paint, to which Paris green has been added. All preven- 

 tives are unsatisfactory, however, and the only safety is 



Remedy. Dig out the borers in late fall and early spring. 



PEACH-TWIG MOTH (Anarsia lineatella, Zeller). The larva 



of a moth, a fourth inch long, boring in the ends of the 



shoots; it sometimes attacks the apple and strawberry 



roots. 



Remedy. Burn the infested twigs. 



PIN-HOLE BORER (Scolytus rugulosus, Ratz). A black 

 beetle about a tenth of an inch long, boring into the trunk 

 and branches of peach, plum, apricot, and other trees. It 

 is thought to prefer weak or unhealthy trees. 



Remedy. Burn the affected trees or parts. Keep the 

 trees strong and vigorous. 

 PLUM-CURCULIO. See under PLUM. 



RED-LEGGED FLEA-BEETLE (Haltica rufipes, Linn.). A flea- 

 beetle feeding on the leaves of peach trees, often in great 

 numbers. 



Remedies. The insects fall at once upon being jarred, 

 and sheets saturated with kerosene may be used, upon 

 which to catch them. Spray with Paris green. 



