. Bulletin of the Department of Agriculture. Agriculture. POISONING COTTON-BOLL WEEVILS. 5 picking in the poisoned and check plats, respectively, in this test. In this case the cotton was so luxuriant that the dividing line could not be shown in a single picture, but the two views given in these illustrations were selected by a disinterested planter as being typical of the two plats. Probably the most interesting feature of this test was the fact that there were 22 days of rain during the month when the applications were made. This seemed to indicate that successful results could be secur


. Bulletin of the Department of Agriculture. Agriculture. POISONING COTTON-BOLL WEEVILS. 5 picking in the poisoned and check plats, respectively, in this test. In this case the cotton was so luxuriant that the dividing line could not be shown in a single picture, but the two views given in these illustrations were selected by a disinterested planter as being typical of the two plats. Probably the most interesting feature of this test was the fact that there were 22 days of rain during the month when the applications were made. This seemed to indicate that successful results could be secured from poisoning i'n spite of excessively rainy weather and tended to allay the fear that dry weather would be essential to successful Fig. 2.—Another view showing dividing line between poisoned and unpoisoned cotton on Algodon Cut No. 1, October 30,1916, Tallulah, La. View looking in opposite direction from that shown in figure 1. In another case a portion of a cut of new ground practically sur- rounded by heavy timber was poisoned. This was very heavily infested with weevils, but the poisoned plat yielded about 1,700 pounds of seed cotton per acre as compared with about 900 for the check. The treatments in this case were practically confined to late July. In all about 15 experiments were conducted during 1916, and the total results showed definitely that it was- possible to poison the weevils profitably under certain conditions. Again, the increased value of late-season applications was obvious, for, as a general rule, the early-season applications gave only slight gains with a very doubtful profit whereas the late-season applications all showed pro- nounced Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The Department : S


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