billet conveyor 12 which conveys cut segments of sugar cane stalks i e billets along with other cut parts of the sugar cane vegetation away from the cutting portion not shown of harvester 10 toward a conveyor chute 14 chute 14 includes a fan not shown which pulls a sufficient vacuum to cause undesirable portions of the vegetation to be separated from the desired cane billets and to be ejected from the chute through a blower passage 16 the desired billets and any vegetation or dirt not removed and ejected through blower passage 16 then falls out of chute 14 into a container such a container is illustrated in fig2 as a hopper h which is being towed along side harvester 10 by a tractor t while these figures illustrate one typical billet type sugar cane harvester there are several other designs of billet type sugar cane harvesters which exist and persons of skill in the art will appreciate that all such harvesters are within the scope of the present invention as long as they harvest sugar cane so as to produce a volume of cut stalks of sugar cane to be used in subsequent milling to produce an end product in a preferred embodiment of this invention illustrated in fig2 the harvester 10 of fig1 has been adapted to apply a microbiocide solution to the harvested billets specifically harvester 10 has been adapted to include a microbiocide container in the form of a tank 20 in fluid communication with a pump p which in turn is in fluid communication with a fluid conduit in.