REARING THE LESSER CORNSTALK BORER:¹ FUNGICIDES FOR CONTROL OF ASPERGILLUS NIGER²

Several sanitary procedures were employed and the fungicides benomyl, captan, maneb-zinc, zinc ion-maneb complex, and triphenyltin hydroxide in autoclaved vermiculite were evaluated for control Aspergillus niger van Tieghem in rearing the lesser cornstalk borer, Elasmopalpus lingnosellus (Zeller). Sanitary procedures reduced the incidence of mold only slightly. Benomyl, at 0.25 g/100 g of vermiculite, had minimal detrimental effects on the biology of lesser cornstalk borer larvae and was highly effective in controlling A. niger. Triphenyltin hydroxide was highly toxic to lesser cornstalk borer larvae at all levels evaluated.