272 



REPORT ON THE 



No. 24 



2. Dig out or probe the borers every fall and spring-; and mound up a nev 

 base with earth for six inches ; remove and examine in September. 



3. Apply Formula in early June. 



Grape. 

 A. Against Black Rot, Mildevi's and Leaf-eating Insects. 



Treatment. 



As buds begin to swell. 



1. Bordeaux and Paris green. 



Formula 2.) 



(Important. ) 



2. Bordeaux and Paris green. 



(Formula 2.) 



3. Bordeaux and Paris green. 



(Formula 2.) j 



4. Bordeaux and Paris green. Two weeks later 



(Formula 2.) 



5. Ammonia-copper carbon-lwhen fruit is well formed. 



ate. (Formula 3.) j 



When to spray. 



Insects and diseapes controlled. 



Ten days or two weeks later, 



before blossoms open. 

 Just after blossoming. 



Flea-beetle, black rot, mildews. 



Black rot, mildews and flea-beetles. 

 Black rot and mildews. 

 Flea-beetle and black rot. 

 Black rot and mildews. 



B. Against Grape Thrip. 



1. Kerosene emulsion, 1 part 

 in 9 parts water. 



Soon after leaves are formed. 



Thrip or leaf-hopper. 



