63 



On the University of Florida Poultry Science Farm, granules were 

 uniformly applied to manure collection areas beneath treatment blocks 

 of cages with a shaker fashioned from a 480-ml glass jar. Amounts were 

 preweighed and applied to manure treatment blocks until the shaker was 

 empty. 

 Mixing and Application of Liquid IGR's and Organophosphorus Larvicides 



Liquid IGR's and commercial larvicides were applied to manure with 



TM 

 a 7.7-1 Sears pressure sprayer. The nozzle was adjusted so that the 



spray was emitted in a broad cone. Each treatment was applied to its 

 block by computing the volume of larvicide to be applied, mixing the 

 volume in the sprayer, and applying the volume uniformly to the par- 

 ticular treatment block until the sprayer was empty. The sprayer was 

 cleaned thoroughly with water between applications of treatments. 



Samples consisted of four 360-ml cups of manure collected from the 

 center third of each treatment block. After a sample was collected, it 

 was emptied into an aluminum pie pan. The pan was placed in the sun and 

 the living larvae of selected fly species present in the sample were 

 counted. Criterion for death was total cessation of movement. 

 Addition of a Liquid 1GR to the Drinking Water of Hens 



The facilities and water treatment application techniques used were 

 described in the poultry facilities section. Test concentrations were 

 prepared by serially diluting IGR stock solutions of 0.1 and 1 .0%. 

 Samples were bioassayed in the lab using first-instar house fly larvae. 

 Placement of Light Traps 



Two blacklight electrocutor grid traps were evaluated at the tilling 

 site. One trap was hung in the aisle between house 3 and the egg pro- 

 cessing room, and the second was hung in the same aisle, but between 



