Abstract
Studies were conducted in 1960 to reevaluate the feasibility of controlling first-generation infestations of the sugarcane borer, Diatraca saccharalis (F.), in stands of C.P. 44-101 ratoon-crop sugarcane. Results of one small-plot test in which damage by first-generation borers was simulated show that stand reductions ranging from 10 to 33% caused no significant losses in cane yield. In another small-plot test, there was also no significant loss in yield when first-generation larval infestations were responsible for stand reductions averaging 7.1%. In two large-acreage experiments, 79 and 76% control, respectively, of first-generation infestations was obtained with 2% endrin granules. No appreciable reduction in density of second-generation populations occurred, with migration of first-generation moths from adjacent fields probably responsible.
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