MICHIGAN" STATE POMOLOQICAL SOCIETY. 



307 



THE COMMON PLUM CURCULIO. 



(ConotracJieitia nenuphar, Herbst.) 

 IT IS SINGLE-BROODED, AND HIBERNATES AS A BEETLE. 



At your last annual meeting, at Ottawa, I read an essay on 

 this insect, giving the established facts in its history, the artifi- 

 cial remedies to be employed in fighting it, some account of 

 the natural remedies, and concluded by referring to such 

 points in its history as were then unsettled, or upon which 

 there were difierent opinions expressed. It would be needless 

 to repeat anything that was there said, for any new members 

 who may not have heard the reading of that essay will find it 

 in the Transactions ; so we will confine ourselves to some of 

 the mooted points. I am glad to be able to inform you that I 

 have forever settled the principal question, namely, as to its 

 being single or double-brooded. 



(a) larva; (6) pnpa ; (c) beetle— all magnified; (cO beetle, natural size, 

 showing how it punctures fruit. 



You will recollect that authors have, from the beginning, 

 held different views on this subject, and this fact should not 

 surprise us when Ave bear in mind that they reasoned simply 

 from conjecture ; nor will it surprise us when we understand 

 the facts in the case. 



The facts that fresh and soft curculios are found in this 

 latitude as early as the beginning of July, and that they still 

 come out of the ground in August, or as late as September 



