THE PLUM CUROULIO A FOE TO APPLES. I85 



to be very much reduced if not made to disappear altogether. Even 

 one of the above remedial measures if followed faithfully and in- 

 telligently will cause a marked improvement in this evil. 



Recipe for making Arsenate of lead : Dissolve 1 1 oz. acetate of 

 lead (sugar of lead) in 4 qts. of water, in a wooden pail, and 4 oz. 

 arsenate of soda (50 % purity) in another wooden pail. The sugar 

 of lead can be dissolved more quickly by using warm water. Pour 

 these solutions into 150 gals, of water. Arsenate of lead can be 

 purchased already prepared. It is to be noted that Disparene, being 

 much more adhesive than Paris green, will withstand considerable 

 rain. 



It is important to note in this connection that if one is using 

 Bordeaux for early spraying for scab or other fungous diseases 

 adding an arsenical poison (Paris green for example) to the Bor- 

 deaux will serve good purpose against the pluni curculio, and 

 other leaf and fruit eaters. 



The President : I presume I am somewhat responsible for this 

 paper by Prof. Washburn. I will have to plead guilty to being 

 the possessor of the orchard described by him, and this trouble 

 has appeared to some extent at my old location. The orchard is 

 one of the oldest in our section of the state; I think the trees are 

 nearly forty years old. Ever since I have been there the fruit 

 has been nearly destroyed by the curculio, and in the three years 

 that the orchard has fruited we have lost nearly three-fourths or, 

 at least, one-half of our fruit. While that apple (indicating the 

 model) represents perfectly the punctures it does not represent 

 the misshapen appearance the fruit has resulting from those wounds. 

 It is about as misshapen as anything that could be conceived as the 

 apple continues to develop. 



Mr. H. L. Crane : I would like to- inquire whether this gouger 

 or plum curculio is the same as the apple curculio ? 



Prof. Washburn : It is not. The apple curculio puncture is 

 a round hole and looks as though a knitting needle had pierced the 

 apple. 



The President : I would like tO' ask why it is that it has only 

 recently attacked our apples, although it has been with us for years. 

 Why did it not attack the apple long ago? I do not think this 

 orchard has suffered for a longer period than I have mentioned. 

 Evidently it must have been in existence before, but why was not 

 the orchard attacked before? 



Prof. Washburn : Have you treated your plum trees for cur- 

 culio? 



The President : No. 



Prof. Washburn : They have been increasing, and as a new 

 food opened up to them they liked it better. 



The President: The plums have been disappearing, and the 

 apples have been increasing. 



Prof. Green : About eight or nine years ago Mr. Dartt had 

 many of these deformed apples. I visited his place at one time 



