THE MONTHLY BULLETIN 



CALIFORNIA STATE COMMISSION OF HORTICULTURE. 



DEVOTED TO HORTICULTURE IN ITS BROADEST SENSE, WITH SPECIAL 

 REFERENCE TO PLANT DISEASES, INSECT PESTS, AND 



THEIR CONTROL. 



Sent free to all citizens of the State of California. Offered in exchange for bulletins 

 of the Federal Government and experiment stations, entomological and mycological 

 journals, agricultural and horticultural papers, botanical and other publications of a 

 similar nature. 



A. J. Cook, State Commissioner of Horticulture Censor 



E. J. VosLER, Secretary State Commission of Horticulture Editor 



ASSOCIATE EDITORS. 



Geo. p. Weldon Chief Deputy Commissioner 



Harrt S. Smith Superintendent State Insectary 



Frederick Maskew Chief Deputy Quarantine Officer 



Entered as second class matter December 29, 1911, at the post office at Sacramento, 

 California, under the act of July 16, 1894. 



Olive Quarantine. — Arizona has issued the following quarantine 

 against the importation of olive trees from other states. This quar- 

 antine became effective April 1, 1916 : 



Arizona Commission of Agriculture axd Horticulture. 



phoenix, arizona. 



quarantine order no. 12, 



Olive Quarantine. 

 In order to protect the olive indiisti-y of Arizona against the introduction into 

 the olive orchards of the state of the several insect pests and plant diseases known 

 to exist in other olive growing districts, it is hereby ordered and declared : 



That the further importation of olive trees, nursery stock and rooted cuttings 

 from other states and from foreign countries is prohibited. 



That unrooted olive cuttings may hereafter be imported into the state and pro- 

 visionally released only under quarantine, and all such imported cuttings are subject 

 to final release if found free from pests by Arizona inspectors only after the expira- 

 tion of one year from time of importation. 



That all persons, corporations and common carriers are hereby prohibited from 

 having possession of, transporting, selling or giving away rooted olive cuttings or 

 olive trees grown in or shipped from other states or foreign countries except as 

 provided herein, and that this order is hereby declared effective April 1, 1916. 

 Adopted March 1, 1916. 



A Matter of Interest to Fruit Growers. — For more than thirty-three 

 years horticultural quarantine has been an established institution in 

 California. During this period the quarantine -officers of the State 

 by and with the support of the fruit growers have employed every 

 means in their power to improve and perfect the service. The end 

 always in view has been an institution which would provide the maxi- 

 mum degree of protection to the horticultural and agricultural interests 

 of the State. In looking over the records of horticultural quarantine a 



