64 



CANADIAN FARM YEAR BOOK. 



Plants and Pest 



Spray Calendar 



1st Application 



2nd Application 



APPLE 



Scab or black spot, can- 

 ker, leaf spot, codling 

 moth and other biting 

 insects, scale insects, 

 blister mite and aphids. 



Shortly before the buds Just before the blossoms 



burst. Use Al or B. 



For Saa Jose Scale 



prune severely, spray 

 thoroughly. 



open. Use A2 or D, 

 with 2 or 3 lbs. arse- 

 nate of lead to each 40 

 gallons of liquid. 



PEAR 



Scab or cracking, bligat, Shortly before the buds Just before the blossoms 

 codling moth, other burst. Use Al or B. open. Use A2 or D, 

 biting insects, scale with 2 or 3 lbs. arse- 

 insects, blister mite, nate of lead, 

 psylla and slug. 



PLUM AND CHERRY 



Black-knot, brown rot. Just before the buds 

 leaf blight or shot-hole burst. Use Al or B. 

 fungus, curculio, slug 

 and aphids. 



Just after fruit Is set. 

 Use A2 or D, with 3 

 lbs. arsenate of lead. 



PEACH 



Leaf-curl, scab or black Before the buds begin Just after fmlt is set. 



spot, yellows,, little to swell. (All must be Use 2 lbs. arsenate of 



peach, curculio,' borer, done before any sign lead alone with water 



San Jose scale,, shot- of bursting of buds.) for curculio. 



hole borer. Use Al or B. 



GRAPES 



Black rot, powdery mil- 

 dew, downy mildew, 

 anthracnose, flea-beetle 

 thrip, or leaf hopper. 



When 8rd leaf is ap- Just before the blossoms 

 pearing. Use D. open. Use D. 



This spray calendar and article following compiled by L. Caesar, O.A.C., 

 Guelph, Ont 



