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liiy preceding remarks, sodium sulphides especially when 

 combined with arsenate of lead, are much more injurious to 

 green tissues than is lime-sulphur. You certainly cannot 

 afford to make the combination with arsenate of lead and I 

 would not advise a very heavy spraying with sodium sul- 

 phide at winter strength upon pear buds or apple buds in 

 those stages of development, or when green tissues appear. 

 When buds are only a little developed and are siill protect- 

 ed by the winter bud scales, you can apply the soluble 

 .sulphur at that time, but if you wait until the green tissues 

 appear and use the soluble sulphur at full winter strength 

 you may serioiiisly injure the green tissues. 



A MEjMBER: Do you always apply lime-sulphur with 

 the driving spray? 



PROF. PARROTT: I hope you do not misunderstand 

 me when I speak of a rather coarse driving spray. It is not 

 one of those solid stream or drenching sprays such as you 

 hear recommended in the western states. AVe use a misty 

 I'ozzle with a rather large aperture. Now then we use 

 lime-sulphur solution entirely for all our spraying during 

 tiie dormant season of our fruit trees, and it is applied im- 

 der pretty high pressure. 



A ^MEMBER : T use the Misty Junior nozzle ; would you 

 use the same disc you use for the coining months? 



PROF. PARROTT : If it gives you satisfactory results 

 ]>y all means continue to use it. I use nozzles with large 

 apertures in our work since by their employment we are 

 able in a given time to apply a large volume of spray, and 

 have at the same time a little more driving power. We 

 have such a large acreage to spray that we have had to se- 

 cure a greater output of the spraying materials. For 

 ordinary spraying in small plantings I would prefer fine 

 apertures for most applications, the exceptions are wiien 

 fighting such pests as aphides, red bugs or psylla flies. 



MR. JENKS : As the matter of soluble sulphur has been 

 ];rought up, I would like to be put right on the matter. 

 The Chairman brought out the fact that these things ought 



