Comparison of Two Gelling Agents for Screwworm (Diptera: Calliphoridae) Larval Diets1

David B. Taylor
1988 Journal of Economic Entomology  
A sodium polyacrylamide polyacrylate gelling agent, Water-Lock G-400, and a galactan polysaccharide agent, carrageenan, were compared for solidifying larval diets of the screwworm, Cochliomyia hominivorax (Coquerel). Water-Lock diet produced larger pupae with less larval mortality than did carrageenan diet. Pupae from larvae reared on the Water-Lock diet exhibited higher emergence and produced adults with higher fecundity. Water-Lock diet also produced larger larvae at 56 h after oviposition.
more » ... fter oviposition. Densities in excess of 300 rng of eggs (16,200 eggs) per liter of Water-Lock gelled diet did not increase larval yield but did reduce larval weight and survival.
doi:10.1093/jee/81.5.1414 pmid:3198859 fatcat:dyycosck25fk7jvuhge2jvqqre