Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California

Description:

Pseudomonas syringae ssp. savastanoi ("Bacillus oleae") Identifier: appendixtojourna19033cali (find matches)
Title: Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California
Year: 1853 (1850s)
Authors: California. Legislature
Subjects: Legislative journals
Publisher: Sacramento : State Printing
Contributing Library: San Francisco Public Library
Digitizing Sponsor: San Francisco Public Library

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:
f the diseasewhen planted, which was in 1899. The disease appeared soon afterthis, and in 1901 all the infected trees were removed. As there hasbeen no indication of the disease since that time, it is believed to havebeen eradicated. The work done is to be commended, as there are over 300,000 olive treesin this colony, and the olive industry is a very promising one. Therewere among these, 781 trees that indicated the olive-knot beyond question,and the early destruction of these, with subsequent precautionarymeasures against further outbreaks, has unquestionably saved theorchards in this district from a terrible scourge. Later, under the guidance of Mr. Harvey Stiles, of Chico, orchardsin Butte County were visited and found seriously affected with theolive-knot. In Mr. Woodwards orchard near Chico, where the diseasehad been especially bad, a great part of the trees had been removed anddestroyed, but all that remained were affected—the Mission less so than OLIVE-KNOT IN CALIFORNIA. 69
Text Appearing After Image:
Plate JI. Ax Advanced Case of Olive-Knot ^Bacillus olece) on Twigs. 70 REPORT OF STATE BOARD OF HORTICULTURE. any of the other varieties, which included Nevadillo, Rubra, Macro-carpa, and ColumelUi. This orchard contained twenty acres, uponwhich at least one half the trees had been destroyed and removed. Mr.Stiles, who has made an extensive study of this disease in his section,furnishes the following information in relation thereto: The European olive-knot, sometimes called tuberculosis of theolive, the result of the attacks of Bacillus olese, is now prevalent inseveral sections of California. This disease came to notice in 1893, andby 1898 had spread so rapidly that nearly all the trees in the orchardwere affected and some completely ruined. Soon thereafter the orchardwas destroyed by the advice of horticultural authorities, and it wassupposed that the disease was eradicated from the State. The Agri-cultural Department of the State University issued that year a bulletin(No. 120) on t

Note About Images
Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.