Insects and Sprays 261 



ous to them, but this is a deadly poison to humans 

 as well and should be carefully handled. 



Spores and germs of diseases live in the soil 

 when plowed under, so use the precaution of rak- 

 ing up and burning all dead vines, etc. Rotation 

 is another means of checking the ravages of insects 

 and diseases. 



The standard remedy for San JosS scale is 

 lime-sulphur. If this cannot be procured at your 

 dealer's, slake 22 lbs. of fresh lime, using just 

 enough water to cover the lime. Add 17 lbs. of 

 sulphur which has been mixed to a paste with 

 water. Boil for an hour in 10 gallons of water, 

 using an iron vessel. Add enough water to make 

 50 gallons and strain through wire netting. 



Motor goggles should be worn when spraying 

 trees or high shrubbery to protect the eyes, otherwise 

 serious trouble may result. 



When the apple blossoms begin to fall, the fruit- 

 grower should begin to spray. When the calyx 

 lobes close a couple of weeks later, the spraying 

 should stop. 



The little brown slug that eats the foliage of 

 cherry, plum, and pear trees in the summer-time is 



