334 



WORK BY SEASONS 



of lime-sulfur solution is made to thoroughly clean up the trees of 

 San Jose 1 scale and spores of scab, rot and rust. 



If the trees are not affected with San Jose" scale the winter spray- 

 ing with lime-sulfur for the three classes of diseases mentioned is 

 advisable. In its place, however, copper sulfate could be used. 

 It is not common, however, to find orchards not somewhat affected 

 with the scale. The lime-sulfur spray is a very good fungicide. 



Fig. 238. — Four types of pruning saws, C, d, swivel bladed saws for use in close places; 

 b, 5-point solid blade was for very large limbs; o, double edge saw often sold, but it may do 

 much damage. (Nebraska Station.) 



As the buds begin to swell, and before they show any color of 

 green or white bloom, it is usually necessary to spray with poison 

 to fight the bud worm. This may be added to a weaker solution 

 of lime-sulfur to continue the fight against fungous diseases 

 and San Jose" scale. This spraying as the buds burst sometimes 

 consists of arsenate of lead combined with Bordeaux mixture. If at 

 this time the buds are attacked by plant lice, the lime-sulfur will 

 help to control this pest also. 



