1920.] PUBLIC DOCUMENT — No. 31. ITa 



and men are essential. Either the growers or the State, or 

 both, should provide them without further delay. 



Other important lines of investigation which should be under- 

 taken by this department include a study of various diseases 

 of market-garden crops and their control; studies of soil fungi 

 associated with "damping off," and stem and root rots of 

 many agricultural plants; and methods of soil sterilization for 

 the control of a considerable number of diseases the causal 

 organisms of which are harbored in the soil. 



Seed work and plant disease diagnosis required about the 

 usual amount of attention. As has been pointed out in pre- 

 vious reports, all seed work is voluntary on the part of the 

 station, as there is no State law to provide for inspection and 

 regulation of the seed trade. Enactment of such a law% 

 requiring the station to carry out its provisions, would neces- 

 sitate increased quarters and the purchase of special equipment. 

 It is, however, by no means certain that there is urgent need 

 of a seed law in this State. 



The filing of the mycological collection was completed by 

 the purchase of two additional steel cases. This is now a fine 

 working herbarium, and it is doubtful if it is excelled in accessi- 

 bility of material by any other collection. 



