Table 2. Generalized linear model testing the effects of season, site type (urban or peri-urban) and site (nested within site-type) on bioassay mortality for each insecticide.

Model term	bendiocarb	malathion	DDT	permethrin	deltamethrin
site type	0.0002	NS	NS	NS	NS
Season	0.0149	0.0037	NS	NS	NS
site(site type)	0.0003	NS	NS	NS	NS
season × site type	NS	NS	NS	NS	NS
season × site(site type)	0.0004	NS	NS	NS	NS

NS=not significant