80 



in full force, as among the specimens sent me all have produced the 

 Semiotellus destructor instead of imago Cecidomyia. Usually it is 

 believed that the parasites are somewhat behind the host in occupying 

 any new territory, but here they seem to have followed with them in 

 their first introduction or to have so nearly kept pace with them as to 

 warrant the hope that they may prevent any great devastation. 



The elm span-worm {Eugonia subsignaria) was unusually destructive in 

 one of the southeastern counties (Washington), a correspondent in that 

 locality reporting that the larvaB had defoliated "acres and acres 5 ' of 

 timber land. This is, I think, the first serious invasion of this insect 

 ever reported in the State. 



The cucumber aphis, the potato stalk-weevil, the squash borer, and 

 some other species have been locally destructive, but on the whole 

 probably not more serious than usual. In many different species there 

 has been a sufficient variation from normal abundance to show the 

 influence of peculiar climatic conditions. 



IS COOPERATION FOE THE CONTROL OF SAN JOSE SCALE 



PRACTICABLE? 



By Wm; B. Alwood, Blaclesburg, Fa. 



When I undertook to collect data on this subject I fully expected to 

 be present at the meeting and present my matter in person. Circum- 

 stances have, however, prevented my attending, and I will only offer a 

 few notes covering in part the subject I had intended to discuss. X 

 hope, however, that what is said will lead to discussion and action by 

 the members of our association. 



Messrs. Howard and Marlatt have so thoroughly treated the general 

 subject of the San Jose scale that it is unnecessary for me to say any- 

 thing whatever covering the details of the life history and like critical 

 data concerning this insect. 



Early in the present year I began collecting data relating specifically 

 to several practical points, viz: (1) The spread of this insect in the 

 several Eastern States infested; (2) the thoroughness and manner of 

 inspection; (3) the extent to which nurseries are iufested and the prob- 

 able facts as to whether this insect will become a permanent habitant 

 and continue its destructive work throughout the extent of the Atlantic 

 States. Also the question of legal enactments for the control or eradi- 

 cation of this insect and the extent to which cooperation seems advisa- 

 ble was made a part of the inquiry. 



Such information as I have obtained has come largely from the sta- 

 tion entomologists and other public officials in the colleges or the 

 various State boards of agriculture. 



After making as thorough an inquiry as I could well do through the 

 persons who ought to be informed on this matter, I find that, unfortu- 

 nately, there are not sufficient data for determining with any accuracy 



