Table 3. Two-way analysis of variance for species richness and abundance of insect pests except on Aphis gossypii. Thirty Hybiscus cultivars and study locations are treated as independent variables. Year is treated as replication. Bold character indicates statistical significance at 95% confidence level.

Independent variables	d.f.	Sum Sq	Mean Sq	F	p
Species richness
Cultivars	29	53.4	1.84	0.43	0.995
Locations	1	48.0	48.05	11.20	0.001
Cultivars×Locations	29	58.1	2.00	0.47	0.990
Residuals	120	514.7	4.29
Abundance
Cultivars	29	5320	183	0.48	0.988
Locations	1	6637	6637	17.26	<0.001
Cultivars×Locations	29	8334	287	0.75	0.816
Residuals	120	46143	385