406 ANNUAL REPORT OF THE Off. Doc. 



]MK. CLAKIv: I intended to speak to tlie Professor with respect 

 to sonic trouble we have had in our county the present season. It 

 is this. Tlirough a number of orchards in our county — I have been 

 past two of them and also in one — the foliage has been almost en- 

 tirely desti'oyed in the entire orchard by worms. This worm some 

 years ago attacked the foliage of the old trees and stripped them 

 entirely, and this 3'ear there are three orchards that I know of, 

 perhaps 5, 7 and 10 acres in the orchards, that the foliage is entirely 

 stripped off the leaves and are as clean as if singed with fire, except 

 the stem or the form of the leaf. It is a matter that evidently must 

 have attention shortly. 



PKOF. SURFACE: I might surmise that this is the canker worm 

 from the description, but I ought to see it to be sure, and that is 

 the point in writing to me. I should like always to receive a speci- 

 men of the insect in question and the work or injury it does. You 

 understand how this is. The insect that chews mav be killed bv 

 London Purple or other arsenites; the sucking insects must be killed 

 by contact applications. 



We have arranged with persons representing societies, granges 

 and organizations of any other kind, that wish a number of our 

 publications, to advise us each month how many they need, and they 

 • will then be sent for distribution. 



CHAIRMAN CRAWFORD: We have all been interested in Prof. 

 Surface's talk and could spend much more time in this discussion, 

 but we have not the time, and if desirable we will hear from our 

 Committee on Queries and have any questions read and answered 

 that may have been handed to them. 



MR. BLYHOL])ER, Chairman of the Committee on Queries: The 

 first question is? 



''What is the jirojier material for building a silo?" 



A Member: Up to the present time I believe that there has been 

 nothing found cheaper than wood. Last year a number of silos 

 were built in our neighborhood that were lathed inside on studding 

 and then plastered with cement. This silo is cheaper than any 

 other, unless it be wood. 



MR. BLYHOLDKR: The next question is: 



"At what stage in growth will clover ploughed under produce the 

 most plant food?" 



PROF. COOKE: Plant food in cloNer increases proportionately 

 from the time the seed sprouts until il becomes dead ripe. Let the 

 clo\cr grow and let it get as big .is possible and you will get th" 

 most from it. 



MR. BLYIIOLDER: The next question is: 



