REPORT OF THE STATE ENTOMOLOGIST 1001 



cSo< 



Treatment: Spray infested trec^s in winter or early spring 

 with contact insecticides. 



Chief accessible article: Felt. E. P. X. Y. state nins. Bnl. 4G. 

 '01. p. 323-26. 



183 San Jose scale insect, A s p i d i o t n s p e r n i c i o s u s 

 Comst. Principal food plants: frnit and many other trees and 

 shrnbs. 



Treatment: Spray infested trees in winter or early spring 

 with whale oil soap or a mechanical emnlsion of crude petroleum. 



Chief accessible articles: Lintner, J. A., state ent. 11th rep't, 

 '96. p. 200-33; Howard. L. 0., and Marlatt, C. L. U. S. dep't agric. 

 div. ent. Bui. 4, n. s. '96. p. ISO; Lowe, V. H. N. Y. agric. exp. 

 sta. Bui. 136. '97. p. 571-602; Howard, L. 0., U. S. dep't agric. div. 

 ent. Bui. 12. n.s. '98. p. 1, 1-32; Felt, E. P., state ent. 16th rep't, 

 '00. p. 967-88; X. Y. state mus. Bui. 46. '01. p. 304-23, 336-42. 



184 Gloomy scale insect, Aspidiotus tenebricosus 

 Comst. A southern species infesting red mai)le. 



185 Elm Aspidiotus, Aspidiotus ulmi Johns. Princi- 

 pal food plant: elm, rarely injurious. 



186 Grapevine Aspidiotus, Aspidiotus uvae Comst. A 

 southern species infesting grapvines. 



187 Red scale insect of Florida, (J h r y s o m p li a 1 u s a o n i - 

 dum Linn. Principal food plants: on palms and other green- 

 liouse plants. 



Treatment: Wash or spray infested plants with whale oil 

 or other soap solution. 



188 Xerophilaspis prosopidis Ckll. A southern 

 species occurring on P r o s o p i s v e 1 u t i n a. 



189 Cactus scale insect, Diaspis calyptroides Costa. 

 Found on cactuses in greenhouses. 



190 Juniper scale insect, Diaspis carueli Targ. Found 

 occasionally on juniper in New York state. 



191 Peach scale insect, Diaspis pentagona Targ. A 

 dangerous subtropic species which has become established in 

 localities in the southern United States. 



192 A u 1 a c a s p i s b o i s d u v a 1 i i Sign. Found on a 

 greenhouse orchid. 



