FORTY-FIRST ANNUAL REPORT. 



16?, 



SPRAY AND PRACTICE OUTLINE FOR FRUIT GROWERS, 1912. 



(Reprinted from Special Bulletin 57.) 

 BY H. J. EUSTACE AND R. H. PETTIT. 



GENERAL TREATMENT FOR APPLE ORCHARDS. 



In the winter or early spring, inspect the trees for San Jose, scurfy 

 or oyster-shell scale. (Send twigs and strips of bark to the Experi- 

 ment Station, if you cannot identify the scale yourself.) 



These scales, especially the San Jose scale, must be destroyed promptly 

 or they will kill the trees. 



Just Before the Buds Open^ if the scale be present, spray with the 

 strong lime-sulphur wash. To be successful, the work must be done 

 very thoroughly — this means that every jKirt of the tree must be covered 

 with the spray. 



Just Before the Blossoms Open, or When They Are "In the Pink/' 

 a spraying must be made to prevent scab and other fungus disease and 

 the canker-worm, bud-moth and a few other insects. For this and the 

 sprayings that follow, use the dilute lime-sulphur or the bordeaux mix- 

 ture. To every fifty gallons, add two or three lbs. of arsenate of lead. 

 (With lime-sulphur, this is the only poison that can be used.) 



After the Blossoms Fall and the Stamens Wither^ and before the 

 calyx closes, another spraying must be made just like the one before. 

 At this time direct the spray downward from above as much as possible, 

 and with the highest pressure available, the object being to get some 

 of the material into the calyx cups, to poison the codling moth when it 

 appears and attempts to enter. 



Cut open a calyx cup occasionally, if the spray has not been driven in- 

 side you are not doing a thorough job. 



This is a very necessary spraying. If well done it usually means 

 a good crop free from worms. 



About Two Weeks After the Above Spraying, make another. Use 

 same mixture and poison as in previous spraying. 



Late In July or Early In August, there will be a second generation 

 of codling-moths. Just when this will occur for your locality can be 

 determined. (See "When the codling-moth flies" page 177.) 



