THE BLACKHEAD FIREWOBM OF CEANBEEEY, 3 



found generally in swales between shore-sand ridges of slight ele- 

 vation. 



FEATURES OF BOG MANAGEMENT. 



Although considerable water sometimes collects on the Pacific 

 coast bogs, especially during winter, as a result of the heavy rains 

 from September or October to April, flooding as a distinct part of 

 cranberry bog management is rarely practiced in that section of 

 the country. Few bogs on the Pacific coast have a good supply of 

 water suitable for flooding purposes, and the mild winter climate in 

 the principal cranberry-growing region seems to obviate the necessity 

 of protecting the vines from winter injury. Principally is this true 

 in southwestern Washington. As a consequence many terminal 

 buds, especially on the warmer bogs, start to unfold shortly after 

 the vines reach maturity in September and October and a certain 

 amount of growth usually takes place during the warmer periods 

 of the winter. It rarely happens, however, that any material damage 

 is done by frost. 



Covering the bog with water, usually from about November 15 to 

 March 1, is practiced only to a limited extent in Oregon, but where 

 this procedure is followed good results are usually secured. In the 

 southern sections of the State it is almost necessary to cover the 

 bogs with water during this period in order to keep the terminal 

 buds from pushing forth during the warmer periods of the winter 

 and meeting probable damage from frost during the late winter and 

 spring. 



The application of sand once every few years, as practiced on 

 many eastern cranberry bogs, is not practiced on the coast, but prob- 

 ably could be employed with benefit. Inasmuch as the majority of 

 the bogs are located between sand ridges, an abundant supply of good 

 sand is readily available should its use become desirable. 



PHENOLOGY OF THE CRANBERRY ON THE PACIFIC COAST. 



The growth of the cranberry vine on the Pacific coast bogs is 

 exceedingly variable, as will be borne out by the data presented in 

 Table 1. This is probably because these bogs are for the most part 

 managed as dry bogs. The relatively variable weather in that sec- 

 tion of the country is also doubtless reflected in the early growth, 

 -blooming, and fruiting of the cranberry. It is for these reasons 

 chiefly that no exact dates can be given for the various stages in the 

 phenology of the cranberry in that region. 



