84 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 9 



since adults have emerged from dry material kept in the laboratory 

 several weeks. 



The future status of the insect as a pest of course cannot be fore- 

 casted, but it would seem reasonable to suppose that, on account of its 

 apparent rather general distribution throughout southern Ohio, the 

 creature has been present in the state for some years. This, consid- 

 ered in connection with the fact that heavy parasitism sometimes 

 occurs, would tend to discourage placing it in the category of elm 

 pests of prime importance. Nevertheless, it cannot be ignored, since 

 individual trees are sometimes considerably stunted. 



Concerning control measures, the one which seems most practicable 

 is the cutting away of all twigs bearing aborted bud clusters before the 

 foliage starts in the spring. As noted previously, the writer has been 

 successful in rearing adults, only when material was collected at the 

 time the foliage was expanding, and that the parasites emerged from 

 material that had been cut some time. It would seem, therefore, to 

 be the best policy to cut the twigs and leave them lie on the ground 

 in order to allow the parasites a chance to emerge. 



President Glenn W. Herrick: The next paper will be presented 

 by Mr. T. J. Headlee. 



SULPHUR-ARSENICAL DUSTS AGAINST THE STRAWBERRY 

 WEEVIL (ANTHONOMUS SIGNATUS SAY) 



By Thomas J. Headlee, Ph.D., Entomologist of tlie New Jersey Agricultural Ex' 



periment Station 



The strawberry weevil appears first to have been recognized as an 

 injurious insect by Glover^ in 1871 from damage done to the straw- 

 berry in Maryland. He suggested sweeping the plants with a musUn 

 net as a means of controUing the insect. Cook^ in 1883 suggested the 

 use of London Purple (1 lb. to 200 gals, of water) or of crude carbolic 

 acid and land plaster (1 lb. of acid to 50 lbs. of plaster). Riley^ in 

 1885 suggested trial of kerosene emulsion and of pyrethrum mixed 

 either with flour or water. Beckwith^ in 1892 added white hellebore 

 to the preceding recommendations and discounted the use of arsen- 

 icals. Chittenden, having mastered the main points in the life of the 

 insect, summarized previous work of control and added a statement of 



1 Glover, T., Rept. U. S. Commissioner of Agric. for 1871, p. 73. 



2 Cook, A. J., 13th Rept. Sec'y. State Hort. Soc. Mich, for 1883, pp. 151-155. 

 " Riley, C. V., Rept. of U. S. Commissioner of Agric. for 1885, pp. 276-282. 



* Beckwith, j\I. H., Bui. 18, Del. Agric. Expt. Station, 1892. 



