Transactions of the Department of Agriculture of the State of Illinois with Reports from County and District Agricultural Organizations for the Year Volume 32 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1895 Excerpt: ... October, all trace of it having in the meantime disappeared with the advent of a long midsummer period of heat and drouth. Particulars to this effect may be found farther on in this paper in the description of experiments Nos. 53, 55, 57, 60, 63, 64, 65r 66, and 67 of the series for 1894. Number and Nature of Experiments. The list of recorded experiments in field and laboratory for the four years mentioned numbers two hundred and eighty-five, of which one hundred and one belong to the year 1891, eighty-six to 1892, eighteen to 1893, and eighty to 1894. The work of the first of these four years was naturally largely devoted to culture experiments and to laboratory experiments with infection methods--thirty-nine of the former and forty-one of the latter for that year. The work of 1892 consisted chiefly of variations and elaborations of that of the preceding year, and included one field experiment. Other parasitic fungi ( Botryiis tenella and Isaria leprosa) were also taken up and similarly handled. Iu 1S93 especial attention was first given to experiments for the introduction of the chinch-bug diseases in the field, and in 1894 a general programme of laboratory experiments and field distributions was entered upon, some two thousand of the latter being made during the year. The most important work of this season consisted in field experiments on a large scale, made by assistants of the office and by others personally known to me, which experiments were followed systematically throughout the season and studied in detail from month to month. Summary of Economic Results. The principal economic outcome of this whole investigation maybe thus briefly summarized: 1. White muscardine of the chinch bug is a contagious diaease due to parasitism by the fungus species Sp...