X 



154 



place. The equipment described provides a place to stack the trays, allows 

 a satisfactory environment to surround the stacked trays (provided a proper 

 environment is maintained in the holding rooms) , and provides means for con- 

 veying the trays from one location to another. The unit saves time and labor 

 and provides a more satisfactory microenvironment around the trays than 

 previously used equipment. 



292. , and Lindig, 0. H. 1973. Ultraviolet lamp pass-through cabinet for 

 use in boll weevil mass-rearing facility. J. Econ. Entomol. 66: 1063-1066. 



A two-door, ultraviolet (UV) or germicidal lamp pass-through cabinet and control 

 system were developed for use in an Anthonomus grandis Boheman mass-rearing 

 facility. The unit allows passage of materials between rooms, or between 

 rooms and the outside, with better contamination control than is possible by 

 using ordinary doorway passages. Tests showed that microbial organisms which 

 were suspended in air or spread in thin layers on filter paper were destroyed 

 when exposed to the radiation produced by the lamps in the unit. The control 

 system was designed and installed so that only one door of the cabinet could be 

 opened at one time. When either door was opened and then closed, both doors 

 were locked and the UV lamps were activated and remained on for a preset length 

 of time before either door could be opened. The UV lamps could not be operative 

 when either door was open. Lamp fixtures were mounted in the cabinet so that 

 any packages or containers placed in the cabinet were surrounded by germicidal 

 lamp rays. 



293. , and Lindig, 0. H. 1974. Mechanized production of boll weevil diet 

 pellets. Trans. ASAE 17: 15-16, 19. 



Tlie size of equipment developed was capable of producing 150,000 or more 

 pellets per man lir of operation, whereas the equipment and the method that 

 are presently used required 6 to 8 man hr of labor to produce this number 



