Insect Injuries to the Seed And Root of Indian Corn
Insect Injuries to the Seed And Root of Indian Corn
Stephen Alfred Forbes
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31. Side view of a middle segment of larva of same species, showing muscular impression, spira- cle, etc. FlG. 30. Beetle of Melanotus com- munis; enlarged four diameters. FIG. 32. Last segment of same, dorsal view ; greatly enlarged. 232 BULLETIN NO. 44. \May, These experiments with the arsenical poisons and strychnine agree substantially with those of Messrs. Comstock and Slinger- land, published in November, 1891, and show that it is not practi- cable to protect the corn by means of them, ev...en were it possible to use them without retarding or preventing the germinating of the seed. Coating the kernels with tar and soaking them in a solution of salt, a solution of copperas, a solution of chloride of lime and copperas, in spirits of turpentine, and in kerosene oil, have been tried by Comstock and Slingerland without encouraging results. Applications of kerosene emulsion and pure kerosene made to the worms in the earth were found by me in 1885 practically ineffective, any strength sufficient to kill the larv.
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