270 



REPORT ON THE 



No. 24 



B. Ag-ainst Sucking Insects, such as Plant-lice and Scale Insects, and against 



Pear Leaf Blister-mites. 



Treatment. 



1. Kerosene emulsion (For- 



mulas), (1 part in 10 

 parts water). 



2. Kerosene emulsion solu- 



tion (1 part emulsion 

 to 10 parts water). 

 Or whale-oil soap solution 

 (Formula 11), (1 lb. 

 to 7 gals, water). 



3. Kerosene emulsion (For- 



mula 9), whale-oil 

 soap as before. 



4. Kerosene emulsion (For- 



mula 9), or whale-oil 

 soap as before. 

 Or lime wash (No. 14). 



"When to Spray. 



Insects controlled. 



Before buds start in spring. . j Pear-leaf blister-mite. 



As leaves are unfolding Pear psylla and aphic 



Ten days later Psylla and aphids. 



About end of May or first of 

 June. 



During winter 



Ovster-shell bark-lice. 



C. Treatment for destroying Borers : 



(a) Dig out the borers whenever possible. 



(b) Apply the soap-soda wash (Formula 13) in early June. 



Plum and Cherry. 

 A. Against Curculio, Brown Rot, Shot-hole Fungus, and Leaf-eating Insects. 



Treatment. 



When to spray. 



Insects and diseases controlled. 



1. Bordeaux and paris green. 



( Formula 2. ) 



2. Bordeaux and paris green. 



(Formula 2.) 



3. Bordeaux and paris green. 



(Formula 2.) 



4. Ammonia-copper-carbon- 



ate solution. (For- 

 mula 3.) 



When leaf-buds are opening. 



When fruit is formed 



Two weeks later 



When fruit is large 



Brown rot, shot-hole fungus. 



Curculio, green fruit worms, brown 

 rot, etc. 



Brown rot, curculio, etc. 

 Brown rot, etc. 



The Curculios are most readily controlled by jarring the trees in early morn- 

 ing, and collecting them on a sheet spread under the tree. The jarring should be 

 begun when the fruit has set, and continued for three weeks Thrice a week is 

 often enough to jar. 



