File:Documentary journal of Indiana 1905 (1905) (14740767466).jpg

Identifier: documentaryjo1905v2indi (find matches)
Title: Documentary journal of Indiana 1905
Year: 1906 (1900s)
Authors: Indiana. General Assembly
Subjects: Indiana--Politics and government--Sources
Publisher: Indianapolis : Wm. B. Burford, contractor for state printing and binding, 1906
Contributing Library: Indiana State Library, Indiana Memory Program
Digitizing Sponsor: Institute of Museum and Library Services under the provisions of the Library Services and Technology Act; Lyrasis Members and Sloan Foundation

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
mstock.) Since its first introduction into this country many years agothe San Jose scale has spread to a most alarming extent, carrying-destruction to shade trees and orchards throughout its course.Coming first to California, presumably from Japan, it has beenvery generally distributed by infected nursery stock. A few badlyinfected nurseries in the East have acted as starting points, fromwhich the past has radiated in all directions. Starting and spread-ing on fruit trees the scale has often attacked and killed forestand shade trees which were growing in the immediate vicinity.Although it is certainly much more abundant and fatal on sometrees than on others there is no reason to believe that any tree isentirely immune to its attacks. Life History.—The San Jose scale begins life as a minuteorange yellow insect, crawling freely about over the trunks andlimbs of trees, whereon its parent is attached. It is in this stagethat the pest is most generally distributed by birds. It will crawl
Text Appearing After Image:
No. 31. a. San Jose scale under lens. b. San Jose scale natural size on twig.c. Front and profile view of San Jose scale, cl. Scurfy scale. Male and female. 86 ■ ^ Fifth Annual Report upon the feet and legs of the bird and he carried, possibly, greatdistances before again happening to crawl off upon another tree. This period of activity continues for, at most, a day or two, whenthe young seal© settles down and begins to secrete the plate orscale proper, which cements it firmly to the bark. It grows duringthe summer, feeding on the plant juices, which it draws throughthe bark with its proboscis, and in early fall the eggs are fertilizedin the body of the female by the winged male. At the approach of winter the insect (still containing the half-grown young) ceases feeding and becomes dormant, to resume feed-ing at the first sign of warm weather. Early in June the youngattain their full size and emerge from the body of the parent, thuscompleting the life cycle. The production of young

Note About Images