. Bulletin of the Maryland Agricultural Experiment Station. Agriculture; Agriculture. THE SAN JOSE SCALE. (As)jidiotus perniciomtH Comstock.) A Serious and Recent Importation into JVfaryland. Bv Dr. C. V. Riley. PAST HISTORY OF THE SPECIES. The following history of the species np to the year 1892, may be re- ])roduced from mv Annuiil Report as Entomologist of the Department of Ao-ricnlture for 1893. l\\ the Annual Report of this Department for 1880, Prof. J. H. Comstock described under the above name,, an insect which he had col- lected iu Santa Clara County, Cal. He stated that from what he h
. Bulletin of the Maryland Agricultural Experiment Station. Agriculture; Agriculture. THE SAN JOSE SCALE. (As)jidiotus perniciomtH Comstock.) A Serious and Recent Importation into JVfaryland. Bv Dr. C. V. Riley. PAST HISTORY OF THE SPECIES. The following history of the species np to the year 1892, may be re- ])roduced from mv Annuiil Report as Entomologist of the Department of Ao-ricnlture for 1893. l\\ the Annual Report of this Department for 1880, Prof. J. H. Comstock described under the above name,, an insect which he had col- lected iu Santa Clara County, Cal. He stated that from what he had seen of the species, he considered it to be the most pernicious scale-insect known in this country. He had never seen any other species so abundant as this was in certain orchards, and was told that it infested all the de- ciduous fruits grown iu California, except the peach, the apricot and the black Tartarian cherry. As a remedy he suggested the use of strong alkaline washes. Until verv recently the San Jose Scale has been confined to the Paci- fic Coast, but'has extended lun-th to Washington, and south to the Mexi- can border, and has be- come, perha])S, the chief enemy to Pacific coasthor- ticulture. Considerabk^ attention has naturall\ been paid to the species . by California horticultu- rists. In 1883, Matthew Cooke published figures of the larva, male pupa, and adult male, together with the adult female scales on twig and fruit. He stated that the insect was first noticed by fruit ship- pers as infesting fruit in 1873, at San Jose, Santa Clara County. From that time it spread rapidly un- til 1880, and but "little effort was made to ex- terminate it. In the win- ter of 1881-82, crude pe- troleum was applied ex- tensively; in some cases CL. with good results, but in TIG. Jose scale: a, pear, moderately Infested- ^j^^ maiority of instances natural size: 7), female scale—enlarjied. , ^ -(trom Insect Life.) With great harm to the. Please note that these image
Size: 1241px × 2014px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectagriculture, bookyear
