Excerpt from Natural Control of White Flies in Florida

It is not feasible to present in this publication more than a Small selection from the large amount of data which have been secured in connection with the investigations of natural control, but it has been the purpose here to present such data as are necessary properly to support important conclusions. The nature of the more important conclusions is such as to render unnecessary complete discussions of minor topics, which would be necessary under other circumstances.

The investigations of the parasitic fungi were conducted by the senior author during the season of 1906; by the senior author, by Mr. E. L. Worsham, now State entomologist of Georgia, and by the junior author during the season of 1907 by the junior author during 1908, and by the senior and junior authors jointly during 1909. Mr. W. W. Yothers has aided at various times in connection with field work and has furnished certain data, as hereinafter specifically credited, in connection with the white-fringe fungus. Mr. Wor sham has been specifically credited where his results have been util ized. Practically all of the experimental results included herein are based on the work of the seasons of 1908 and 1909.

Thanks are extended to Prof. P. H. Rolfs, Dr. E. W. Berger, and Prof. H. S. Fawcett, of the Florida Agricultural Experimental Sta tion, for the many courtesies extended during these investigations. Acknowledgment is also made of assistance rendered by Mrs. Flora W. Patterson, mycologist of the Bureau of Plant Industry, to whom many specimens of fungi have been submitted for examination and for information. The colored plate is the work of Mr. J. F. Strauss, of the Bureau of Entomology.

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