196 



THE CANADIAN HORTICULTURIST. 



Codling-moths cannot always be controlled by spraying, especially in the southwestern sec- 

 tion of Ontario, where a second brood appears later in the season. 



In addition to spraying, in this district, use bandages around the trees. Make them from 

 four to six inches wide, three or four inches thick, of any kind of cloth. Old bags, sacks, 

 coarse material of any kind will do. Bands of straw and tow have been used with some suc- 

 cess. During the first week in June bind one around each tree three or four feet from the 

 ground ; secure it either with cord or small nails ; take it off every twelve days, and care- 

 fully examine for codling cocoons. These maybe readily destroyed by crushing. Replace 

 the bands as before. 



Tent-caterpillars are controlled by burning the webs or nests in May ; by collecting and 

 destroying the clusters of eggs in fall and winter ; by banding the trees, and by spraying the 

 young caterpillars with Paris green. 



Canker-worms may be largely controlled by banding the trees in autumn and early spring, 

 and by spraying with Paris green when the worms appear. 



B. 



-Against SucK^ng Insects, such as Plant-lice and Scale Insects, and against Pear Leaf 



Blister mites. 



Treatment. 



1. Kerosene emulsion. (For- 



mula 10), (1 part in 10 

 parts water). 



2. Kerosene emulsion solu- 



tion (1 part emulsion to 

 10 parts water). 

 Or whale-oil soap solution 

 (Formula 12), (1 lb. to 

 7 gals, water). 



3; Kerosene emulsion (For- 

 mula 10), whale-oil soap 

 as before. 



4. Kerosene emulsion (For- 

 mula 10), or whale-oil 

 soap as before. 

 Or lime wash (No. 16). 



When to Spray. 



Before buds start in spring. 



As leaves are unfolding. 



Insects controlled. 



Ten days later. 



Pear-leaf blister-mite. 



Pear psylla and aphids. 



Psylla and aphids. 



About end of May or first of Oyster-shell bark-lice. 

 June. I 



During winter. 



C. — Treatment for destroying borers : 



(a) Dig out the borers whenever possible. 



(b) Apply the soap-soda wash (Formula 15) in early June. 



PLUM AND CHERRY. 

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



Treatment. 



1. Bordeaux and Paris green, 



(Formula 2.) 



2. Bordeaux and Paris green. 



(Formula 2.) 



3. juordeaux and Paris green 



(Formula 2.) 



4. Ammonia-copper carbonate 



solution. (Formula 4.) 



When to Spray. 



When leaf-buds are opening. 

 When fruit is formed. 

 Two weeks later. 

 When fruit is large. 



Insects and diseases controlled. 



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 morning, and col- 

 lecting them on a saeet spread under the .ree. The jarring should be begun when the fruit 

 has set, and continued for three weeks. Thrice a week is often enough to jar. 



