Table 4. Univariate ANOVA for the effect of larval density, incubation period, and larval density by incubation period on midgut infection rate, disseminated infection rate and viral titer.

Body infection rate
Model term	Source	numDF	denDF	F-value	P-value	Significance
Main effect	Larval density (LD)	1	18	0.06	0.81	N.S.
Main effect	EIP	2	18	1.03	0.37	N.S.
Interaction	EIP*LD	2	6	0.18	0.832	N.S.
Disseminated infection rate
Model term	Source	numDF	denDF	F-value	P-value	Significance
Main effect	Larval density (LD)	1	18	0.21	0.65	N.S.
Main effect	EIP	2	18	8.64	0.0023	**
Interaction	EIP*LD	2	6	2.84	0.08	N.S.
Viral titer (body)
Model term	Source	numDF	denDF	F-value	P-value	Significance
Main effect	Larval density (LD)	1	18	2.32	0.145	N.S.
Main effect	EIP	2	18	10.2	0.001	***
Interaction	EIP*LD	2	6	1.21	0.322	N.S.

N.S. p>0.05;

* p<0.05;

** 0.001<p<0.01;

*** p<0.001