. Bulletin of the Department of Agriculture. Agriculture. 40 BULLETIN 564, U. S. DEPARTMENT OF AGRICULTURE. Table 34.—Fallen fonn collections in machine-picked test, Tallulah, La., 1916. % Picked plat. Check plat. Date. Squares. Bolls. Total forms. Squares. Bolls. Total forms. July 27 1,385 1,436 516 372 1,901 1,808 1,371 2,581 805 984 2,176 3,565 Total 2,821 888 3,709 3,952 1,789 5,741 From this table it is seen that on both occasions considerably more forms were gathered from the ground in the check plat than in the picked plat. In the two pickings a total of 3,709 fallen forms were gat
. Bulletin of the Department of Agriculture. Agriculture. 40 BULLETIN 564, U. S. DEPARTMENT OF AGRICULTURE. Table 34.—Fallen fonn collections in machine-picked test, Tallulah, La., 1916. % Picked plat. Check plat. Date. Squares. Bolls. Total forms. Squares. Bolls. Total forms. July 27 1,385 1,436 516 372 1,901 1,808 1,371 2,581 805 984 2,176 3,565 Total 2,821 888 3,709 3,952 1,789 5,741 From this table it is seen that on both occasions considerably more forms were gathered from the ground in the check plat than in the picked plat. In the two pickings a total of 3,709 fallen forms were gathered from the picked plat and 5,741 from the check, thus giving a reduction of 2,032 in favor of the picked plat. INFESTATION. The degree of weevil infestation in the two plats was followed through the season in the usual manner in order to determine the effect of the picking operations. Table 35 gives the results of these observations. Table 35.—Square infestation, Tallulah, La., 1916. Date. Check July 1. July 7. July 13 July 21 July 27 Aug. 2. Aug. 8. From this it is seen that at the beginning of the experiment the two plats averaged exactly the same infestation. At the next exam- ination, however, the picked plat increased slightly above the check plat and retained this position until July 27. The seasonal average of the check plat was per cent, while that of the picked plat was per cent. Thus these records fail to show any decrease in the infestation due to the weevil collections. In fact, the averages are remarkably nearly equal. Studies on the seasonal average infestation of the various points of observation show this infestation to have been evenly distributed in the various plats. EFFECT ON PLANTS. The plant breakage due to the operation of the machine has been mentioned. By the latter part of the season it was quite obvious that this was going to have a very detrimental effect on the picked plat. The picked cotton looked as if it had been topped,
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