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Fifteen insecticides were applied by micropipette to the ventral surface of the adult slender seed corn beetle, Clivina impressifrons LeConte. Some of the same insecticides were evaluated as seed treatments and soil treatments in the laboratory and greenhouse. Diazinon and parathion were the most effective insecticides when applied topically. Dimethoate, carbofuran, phorate, Dyfonate® ( O -ethyl S -phenyl ethylphosphonodithioate), Dasanit® ( O, O -diethyl O -[ p -(methylsulfinyl) phenyl] phospho-rothioate), and Dursban® ( O, O -diethyl O -(3,5,6-trichloro-2-pyridyl) phosphorothioate were slightly to moderately less effective. Diazinon and Dursban were most promising as seed treatments. Field conditions in 1969 were very favorable for germination and growth of corn seed, and the beetles caused only slight damage, even though the adults were relatively abundant.

The preliminary business session of the North Central Branch was called to order by Chairman C. E. Mickel at 11:40 a.m., March 27,1957 at Hotel Savery, Des Moines, Iowa.

The 1962 meeting of the Committee on Insect Surveys and Losses was held April 18 and 19, in Washington, D. C. Committee members present were chairman O. H. Hammer, Elmer W. Beck, John H. Hughes, Leo G. K. Iverson, William A. Simanton, and John M. Whiteside. Unable to be present were Howard B. Petty, Jr. and Herbert C. Knutson. Ex-officio members present were Kelvin Dorward, Richard T. Holway, and William H. Anderson. Others in attendance and contributing to the discussions were: W. G. Bruce, Emory D. Burgess, Louis G. Davis, Philip B. Dowden, E. L. LeClerg, R. H. Nelson, Bailey B. Pepper, W. L. Seal, C. L. Stanford, J. F. Spears, R. B. Thrailkill, and Clarence E. White. Dr. Simanton served as secretary.