204 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 5 



the fungi, it is of advantage to thoroughly spray the grove with spores 

 even when there is much fungus present. This has been abundantly 

 proven in field experiments by Doctor Berger and the experience of 

 commercial sprayers. 



Spraying on a Commercial Scale. The method has been taken 

 up very extensively by the growers of the state and several parties 

 make it their business during the summer season. One alone of 

 these commercial sprayers treated a hundred thousand trees last 

 summer belonging to over a hundred growers and sold fungi to as 

 many more who applied it themselves. Several others sprayed from 

 fifteen to fifty thousand each, and a very large number of growers 

 sprayed their own trees. Altogether during the last few years between 

 one and two million trees have been thus treated. 



Conclusion. Although some very good results have attended their 

 use at other times, such as March and April, as is to be expected, the 

 fungi do their most efficient work during the warm rainy summer 

 (from about June to the middle of September). 



We do not advise the grower always to depend upon the fungi alone,, 

 at least not in the case of a severe infestation during the dry season. 

 Then it is frequently desirable, or even necessary, to use some heavy- 

 oil insecticide to supplement the work of the fungi. Or fumigation 

 with hydrocyanic acid gas can be used in isolated groves or commun- 

 ities. 



It would seem that the practicability, in Florida, of combating insects 

 by means of aiding in the distribution of their fungous enemies, at 

 least in connection with other methods, has been sufficiently demon- 

 strated to warrant a thorough trial in all other moist, sub-tropical or 

 tropical countries. The method has already been successfully used 

 against scales in Trinidad, Montserrat, and Barbados (Report of ther 

 Local Dep. of Agri., Barbados 1910-11; W. I. Bull. Vol. XI No. I). 



American Association of Economic Entomologists 



The following appointments are announced for the current year: 



Committee on Membership, H. E. Summers, Chairman, Wilmon Newell and R. A.^ 



Cooley. 



Committee on Entomological Investigations, T. J. Headlee, Chairman, Glenn W. 



Herrick, and W. C. O'Kane. ,,^ t^ tt t-, -j .. 



W. D. Hunter, President. 



American Association of Economic Entomologists. 

 At the last annual meeting of the association it was voted that the President and 

 Secretary arrange to organize an employment bureau for entomologists. 



Prof. F. L. Washburn, St. Anthony Park, Minn., has been selected to take charge 

 of this work and entomologists desiring positions or institutions desiring ento- 

 mologists should communicate with him. . ^ ^ ^ 



A. F. Burgess, Secy. 



