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recommend to control the scale, aphis and codling moth, 

 and when he would recommend those sprayings. 



PROF. PARROTT : In other words, you want to know 

 what, in New York at least, is the common spraying sched- 

 ule. Most of our leading fruit growers make at least three 

 cpplications during the year in the treatment of their apple 

 trees, quite a number make four applications. The times of 

 making these applications are as follows; the first one is the 

 winter spray which is made when the buds are breaking 

 and are showing green at the ends; the second treatment is 

 just before the blossoms open. The third spraying is when 

 the petals drop from the trees, and then, as I have said, some 

 of our growers make the mid-summer spraying during the 

 latter part of July and early August. This is our common 

 spraying schedule. Is that clear? 



A MEiMBER : The point I want to get at is whether we 

 can do away with the winter spraying for scale and substi- 

 tute the spraying you recommend, using one to eight lime- 

 sulphur when the buds begin to start? 



PROF. PARROTT : Certainly, for varieties of apples 

 susceptible to rosy aphis, as the greening, delay the spraying 

 of the apple trees imtil the buds are green and the tips of 

 the leaves of the most advanced buds are one-fourth of an 

 inch out. 



A MEJMBER: Then you do away with winter spraying? 



PROF. PARROTT: Yes, especially on varieties of ap- 

 ples like the Greenings, which are very susceptible to attacks 

 by the rosy aphis. 



A MEMBER: J would like to ask how manj^ sprayings 

 you would recommend for peaches and whether the leaf curl 

 of the peach is caused by the aphis? 



PROF. PARROTT : In our peach belt, there is one ap- 

 |)lication that the thinking peach grower always makes, and 

 that is early in the spring as soon as he can get on' the 

 ground, he applies lime-sulphur solution at the rate of one 

 lO eight to free the peach trees from San Jose scale and to 



