Abstract: The disclosure describes a system for spraying an insecticide or the like, automatically and for a given period of time. The system includes a spray applicator mounted on a rotary table so as to direct a spray of insecticide all around the axis of the rotary table upon rotation of the latter. The rotary table includes a housing with a rotatable base, which is fixed at the top, a shaft extending in the housing and maintained fixed with respect to the housing. The base should be rotatable with respect to the housing. A rotatable sleeve is mounted at the bottom of the fixed shaft and is operatively connected to the rotatable base. A gear arrangement which is motor operated causes rotation of the sleeve and thereby rotates the base. An insecticide which is preferably mixed continuously is continuously fed to the spray applicator.