75 



Burke, Washington. D. C; J. L. Webb, Washington, D. C; T. B. 

 Symons, Collegepark, Md. ; K. I. Smith, Collegepark, Md. ; G. W. 

 Martin, Nashville, Tenn.; A. F. Conradi, Durham, N. H., and H. L. 

 Price, Bhieksburg-, Va. 



For foreign membership: Josef Jabk)nowski, Budapest, Hungary, 

 and Yasushi Nawa, Gifu, Japan. 



H. OSBORN, 



a. l. quaintance, 

 Nathan Banks, 



Committee. 



Upon motion of Mr. Ashmead, the report was accepted and the 

 secretar}^ was instructed to cast an affirmative ballot for the Associa- 

 tion. 



The programme was then resumed, the first paper being by Mr. 

 Alwood, as follows: 



A NOTE ON THE OVIPOSITION OF THE SEVENTEEN- YEAR LOCUST 

 (CICADA SEPTENDECIM). 



By William B. Alwood, Blackshurg, V(t. 



In presenting this note 1 wish first to mention a rather curious 

 observation made by me last year at the Virginia Agricultural Experi- 

 ment Station at Blacksburg. We were expecting the locusts and had 

 designed, if occasion warranted, to experiment upon some spra3\s with 

 a view of preventing oviposition by the female in the fruit trees of 

 the experiment-station orchards. At the proper season the insects 

 appeared in great numl)ers, so abundantl}', in fact, that one could 

 gather up a quart in a few minutes at the time the}' were issuing from 

 the earth. The young orchards at the station were then in the main 

 12 3'ears old and fine vigorous young trees, but there were also trees 

 ranging down to 2-years set, so that the insects had ever}' opportunity 

 to select suitalilo branches for oviposition if the}' were inclined to 

 do sj. 



Careful observation from day to day revealed the fact that they 

 seemed to be making no efforts whatever to oviposit in the trees of 

 our test orchards, but after lingering for some days in the trees they 

 flew away. Thus by the time the locust season was about half passed 

 our orchards were practically clear of the insects. In no instance did 

 we detect them ovipositing in the twigs or branches of our trees. 

 However, the past sunmier we have noticed perhaps half a dozen 

 instances where oviposition occurred. 



Why they did not choose to oviposit in the branches of the orchard 

 trees at the experiment station has been rather a puzzle to me. I 

 have only one suggestion to make, and that is that, as we spray our 

 orchards very thoroughly with Bordeaux mixture, and the limbs and 



