Investigations in the control of wire-worms (Lacon variabilis Cand.) in canefields with "Gammexane"

Abstract

Amounts of "Gammexane" (10% dust containing 1.3% gamma isomer of benzene hexachloride) ranging from 12 1/2 lb. to 400 lb. per hectare were applied to cane setts either directly or after a shallow soil cover had been applied. All direct-application treatments gave complete or nearly complete control of wireworms, but the rooting of setts was very much reduced. Indirect application gave a substantial degree of control of wireworms for all amounts of "Gammexane"; with higher dosages there was a marked toxic effect on rooting, but this was not excessive with amounts of less than 50 lb. per hectare.