THE MONTHLY BULLETIN. 57 



CALIFORNIA STATE COMMISSION OF HORTICULTURE 

 QUARANTINE ORDER No. 30. 



WHITE PINE BLISTER RUST. 



The fact has been determined by the State Commissioner of Horti- 

 culture that a contagious tree disease, known as White Pine Blister 

 Bust [Peridermium strobi, Kleb.), new to and not heretofore distrib- 

 uted within and throughout the State of California exists in several 

 stales of the United States, and that the species and varieties of 

 currants and gooseberries (Ribes) are known to be carriers of this 

 disease. 



Now. therefore, it is declared necessary, in order to prevent the introduction of 

 White Pine Blister Rust into the pine forests of the State of California, that a horti- 

 cultural quarantine be and the same is hereby established at the boundaries of the 

 State of California, in accordance with the provisions of section 231f> of the Political 

 Code of the State of California, against all five-leafed pine trees, and all species and 

 varieties of currant and gooseberry plants and cuttings, imported or brought from 

 any and all states and districts of the United States east of the Mississippi river,, 

 and no such five-leafed pine trees, or currant or gooseberry plants or cuttings shall 

 be permitted to pass over the said quarantine lines so hereby established and 

 proclaimed. 



Hereafter, and until further notice, all five-leafed pine trees, and currant and 

 gooseberry plants and cuttings, from any and all states and districts of the United 

 States cast of the Mississippi River are denied admittance into the State of California, 

 and upon the arrival of any such trees, plants or cuttings as quarantined against in 

 this order, the same shall be immediately sent out of the state, or destroyed at the 

 option and expense of the owner or owners, his or their responsible agents. All 

 deputies of the State Commissioner of Horticulture, and State Quarantine Guardians 

 are hereby empowered to carry out the provisions of this order. 



G. H. HECKE, 



State Commissioner of Horticulture. 



Approved: 



Hiram W. Johnson, 



Governor of the State of California. 



