76 



Insect Pests. 



A. — In" America. 



B. — At Wye. 



Treatment. 



III. 



Paris Green, i lb. to 60 galls, water 

 , Arsenate of Lead (normal) . 

 V Unsprayed . . . . 



* Grimes' Golden Apple. 



+ Ben Davis. 



X Worcester Pearmain. 



The strength of the arsenical wash, used at Wye, was as follows : 



Acetate of Lead 

 Arsenate of Soda 

 Water 



12 oz. 



4 oz. (40-50 p.o.) 

 100 gallons. 



Eecent experiments have shown that this wash was not then 

 recommended at sufficient strength for all purposes. The new 

 formula is given in the appendix. 



A great deal of good may be done in grass orchards by keeping 

 pigs in them when the apples are falling, and some benefit has been 

 found from the presence of poultry. Trees should also be kept clean 

 by either using once every two or three years the lime amd salt 



