Sustainable pest management approach against the hog plum leaf beetle, Podontia 14-punctata Linn. (Coleoptera: Chrysomelidae)

Bulletin of the National Research Centre

Table 3 Multiple linear regression models along with coefficients of determination (R²) regarding the impact of weather parameters on the seasonal abundance of P. 14-punctata population in hog plum

Stage of insect	Parameters	Coefficients	Standard error	t-value	P value	R²	F-statistics
Adult	Intercept	− 103.497	64.979	− 1.593	0.150	0.617	F_3,11 = 4.299, P = 0.044
	Temperature	1.240	0.447	2.777	0.024
	Rainfall	− 0.079	0.066	− 1.199	0.265
	Relative Humidity	1.101	0.853	1.290	0.233
Larva	Intercept	− 22.877	57.432	− 0.398	0.701	0.606	F_3,11 = 4.093, P = 0.049
	Temperature	1.050	0.395	2.661	0.029
	Rainfall	− 0.006	0.058	− 0.104	0.919
	Relative Humidity	0.027	0.754	0.036	0.972

Y = insect population/(1 m²) quadrat; X₁ = average temperature (°C); X₂ = average rainfall (mm); X₃ = relative humidity (%)