THE MONTHLY BULLETIN. 167 



the bushes with a solution of sulfide of' potash (liver of sulfur), one 

 ounce to three gallons of water. The under sidas of the leaves as well 

 as the upper must he covered and a fresh solution used each time spray- 

 ing becomes necessary. 



Potato Scab and Eelworm. 



Precaution to prevent planting of scabby tubers should be taken in 

 the use of clean seed and treating before planting or cutting by soaking 

 one and one half hours in a solution of one pint of formalin to thirty 

 gallons of water. If soil is badly infested plant to some other crop for 

 several years. Potato scab is recognized by the rough scabby surface 

 of the tuber. Planters should also be on the lookout for any diseased 

 tubers containing eelworms. These tubers have a rough warty surface, 

 and if one of these is cut in two a ring of black dots is visible on the cut 

 surface near the skin. 



Sunburn. 



Young trees are more susceptible to sunburn that the older ones. 

 The southwest sides oi the trees suffer the most. The cambium layer is 

 killed by the heat and as a result there is an area of dead bark. This 

 furnishes entrance lo rot fungi and borers. It may be prevented by 

 insuring the presence of an abundant moisture supply in the soil. Pro- 

 tectiuo' the trunk with whitewash and using wrappers of various 

 material is advised particularly for young trees. 



