160 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 14 



is one important thing that has usually been overlooked in codling moth 

 ■control that year by year is im.pressing itself on me, and is perhaps one of 

 its most important aspects, namely, the thinning of the fruit at the 

 time that the first brood worms are in the apples. The commercial 

 orchardist thins the fruit with an eye to taking off the wormy apples. 

 The calyx spraying alone plus the thinning has frequently been all 

 sufficient in producing one hundred per cent, clean fruit. Usually, 

 however, the thinning is not perfectly done and the side sprays become 

 necessar}^ but I do not know from personal experience how widely the 

 thinning of the fruit is carried on in the commercial orchards of the 

 Middle and Eastern States. It may be a totally impractical thing in 

 the very large apple trees of New England and New York, but with the 

 younger trees prevalent in the West, thinning for wormy apples is a 

 regular accomplishment in codling moth control, and I believe it is 

 worth as much as all the cover spraying put together. 



Mr. R. W. Braucher: There is another point I would like to em- 

 phasize, and that is in the control of the codling moth there is a necessity 

 of making a study of the insect each year and varying the spraying cam- 

 paign to correspond with the life history of the insect during that season. 

 There is such a variation between the life cycle of the codling moth and 

 the life cycle of the tree that it is misleading to attempt to give recom- 

 mendations according to the development of the tree. In one season 

 you may get excellent results and in another season you may get very 

 poor results. 



The necessity of the cover sprays to prevent the side worms must be 

 realized, and this method used much more extensively in certain seasons 

 than in others on account of the difference in the abundance of the cod- 

 ling moth larvae. 



Adjournment. 



Section of Horticultural Inspection 



Thursday afternoon, December jo, 2.1 j p. m. 



The meeting of the Section of Horticultural Inspection of the American 

 Association of Economic Entomologists was held Thursday afternoon, 

 December 30, 1920, at the University of Chicago, and was called to order 

 at 2.15 p. m. by the Chainnan, Mr. J. G. Sanders of Harrisburg, Pa. 



Chairman Sanders: The Chairmen of this Section, in the past, 

 have not been accustomed to give an address, but on the special request 

 of the Secretary of the Section, the Chairman has prepared a short 

 address which he will read at this time. 



