Page 



H 



scab. In sections where the bud moth 

 is present arsenate of lead used in the 

 standard dilutions should be added to 

 the lime-sulphur. Owing to the fact 

 that the entire developing apple cannot 

 be completely covered with spray, and 

 thereby given complete protection, until 

 the young fruits have separated in the 

 clusters, this spray should be delayed 

 until they sufTiciently develop. In 

 large orchards, however, it will not be 

 possible to wait until all of the spurs 

 are in this condition. The orchardist 

 should arrange his spraying so that the 

 greatest proportion of the crop is 

 sprayed while in this condition. If 

 mildew is severe add the iron sulphide 

 mixture. 



4. Calyx Spray. All orchardists are 

 familiar with the value of applying 

 arsenate of lead at this period in the 

 devolpment of the young apple. Apply 

 the spray a few days following the 

 dropping of the petals. Owing to the 

 fact that it is necessary to protect the 

 fruit from further scab infection, lime- 

 sulphur must be used. In orchards 

 where mildew control is a problem, 

 continue the use of the iron sulphide 

 mixture. 



5. Ten-Day Spray. The so-called ten- 

 day or two-weeks spray is primarily 

 used for furthering scab protection. It 

 is through the use of this application 

 and the following one that "shot fun- 

 gus" or the appearance of numerous 

 scab spots on the fruit, usually early in 

 July, is prevented. It is a very impor- 

 tant spray during most seasons and 

 must not be omitted. 



6. Thirty-Day Spray. This applica- 

 tion is made just previous to the hatch- 

 ing of the first brood of codling moth 

 and is therefore a very important appli- 

 cation. During certain seasons it is 

 necessary to use a spray in order to 

 prevent further scab development. The 

 use of lime-sulphur is dangerous at this 

 time, due to the possibility of burning, 

 and before using it consult with the 

 nearest investigator. We have been ex- 

 perimenting for two seasons with self- 

 boiled lime-sulphur in this application 

 and the preceding, and the results that 

 have been obtained are very encourag- 

 ing. Scab control has resulted with 

 practically no fruit burn. The greatest 

 difTiculty so far encountered is that of 

 preparation. Both the lime and the 

 sulphur must be of good quality or the 

 resulting product will contain many 

 fine particles which clog up the nozzle. 

 The work which is to be continued 

 along this line during the coming sea- 

 son will clear up many of the diiricul- 

 ties so far encountered in the use of 

 self-boiled lime-sulphur. For the prep- 

 aration of this material write the Ore- 

 gon Agricultural College, Corvallis. 



7. July Spray. This application is 

 needed in some sections of the state for 

 the control of codling moth. Keep in 

 touch with your fruit inspector or in- 

 vestigator. At Hood River and most of 

 the interior apple districts the hatching 

 of the second brood of worms does not 

 take place until August. During some 

 seasons the green and woolly aphids 

 become injurious during this month. 

 Watch them closely and if they become 

 injurious spray. 



BETTER FRUIT ^^"^ 



8. August Spray. In many sections of tial to put the spray on at just about the 

 the Northwest the lead spray for the right time. Bordeaux 3-4-50 can be 

 control of the second brood of codling added to the arsenate of lead. This, 

 moth must be applied during this however, is only advised in orchards 

 month. The exact date can only be de- where anthracnose is causing consider- 

 termined by carefully conducted breed- able damage. Bordeaux has a tendency 

 ing observations, carried on by one to mottle red apples, due to the fact that 

 familiar with the insect's activities. If the sunlight is prevented from reaching 

 your section is badly infested with the surface of the fruit and the apples 

 worms, get an expert to carry on some do not color uniformly, 

 breeding studies. To be efTective dur- 9. Fall Spray. For the control of an- 

 ing the time the eggs are hatching the thracnose the fall application of bor- 

 spray must be applied at a time not to deaux mixture should immediately fol- 

 exceed a few days before the hatching low the harvesting of the fruit. If this 

 of the first eggs, or the spray will lose disease is once put under complete con- 

 its effectiveness before the later eggs trol in a given district, spraying every 

 are hatched. A lead spray at this time other year thereafter has been found 

 of the year is entirely effective for a sufficient in the Hood River sections to 

 period not to exceed 21 to 25 days. If keep the trouble in check. This would 

 an application, therefore, is applied a probably be true of the activities of the 

 couple of weeks before the eggs begin disease in other sections. Spores be- 

 to hatch its extended effectiveness is come active follownig the early fall 

 greatly reduced. During some seasons rains, and to get complete control the 

 eggs continue to hatch for a month or application should be made before these 

 more, with a result that it is very essen- occur. 



niLUTION TABLE FOR LIME-SULPHUR AT DIFFERENT DEGREES BEAUME * 



(This \ah\e is prepared considering lime-sulphur at 32° Beaume as sl.nndard. Concentrates 



testing higher or lower are arranged so that they will contain the 



same amount of sulphur in the diluted spray.) 



Deorees Delayed Dor- Pink Calyx Ten-Day Thiiiy-Day 



Beaume mant Spray Spray Spray ^^P''"" ^ ^^FV-, a 



36 1 to 28.3 1 to 34.1 1 to 40.0 1 to 45.6 1 to 57.4 



35 1 to 27.5 1 to 33.1 1 to 38.8 1 to 44.2 1 to 55.6 



34 ::.:::..::.... i to 26.7 1 to 32.1 1 to 37.5 1 to 42.8 }i°^^u 



33 1 to 25.8 1 to 31.0 1 to 36.2 1 to 41.3 1 to 51.9 



32" " : : 1 to 25.0 1 to 30.0 1 to 35.0 1 to 40.0 1 to 50.0 



57 1 to "4.2 1 to 28.9 1 to 33.7 1 to 38.6 1 to 48.2 



30 ■.::■.'.:;■.'.■.... 11023.3 1 to 27.8 1 to 32.3 1 to 37.1 n°!S-c 



29 1 to 22.5 1 to 26.7 1 to 31.0 1 to 35.6 1 '« f^^ 



2I ::;:: i to 21.6 1 to 25.7 1 to 29.7 11034.2 }i°ju 



2? 1 to 20 8 1 to 24.5 1 to 28.3 1 to 32.8 1 to ^1.0 



26 :::::::: 110200 11023.5 no 27.0 no 31.3 it°^?-§ 



SS 1 to 19 1 1 to 22.4 1 to 25.7 1 to 30.0 1 to 37.2 



II J Jo 183 1 to 21 3 1 to 24.3 1 to 28.7 1 to 35.4 



II i to 17 4 1 to 20.2 1 to 23.0 1 to 27.2 1 to 33.5 



II i to 16 5 1 to 19.0 1 to 21.6 1 to 25.8 1 to 31.7 



?t 1 to 15 8 1 to 18.1 1 to 20.3 1 to 24.5 1 to 30.0 



IJ : ■:;::::::•.: : i to 15:0 1 to 17.0 1 to 19.0 1 to 23.0 1 to 28.2 



* This table was kindly prepared by Mr. R. H. Robinson, Assistant Chemist, Oregon 



Experiment Station. 



Oithard Diskind Pays! | 



AND THIS ORCHARD FOLDER TELLS WHY 



Bigger and better crops this Season will result from 

 proper and deep cultivation with 



CJ^ r^lc ORCHARD 

 ji tmf^J^ IMPLEMENTS 



We make extension head disk harrows — double with rigid frame— single and 

 also California Orchard Plow with reversible feature; at least one special orchard 

 tool that fills ^our needs. Write for this special folder on orchard tillage. 



The Cutaway Harrow Co. 



471 Main Street 

 Higganum, Connecticut 

 Maker of orisinal CLARK 

 Disk Harrows and Fiom, 



WHEN WRITING ADVERTISERS MENTION BETTER FRUIT 



