Table 1.

Statistical results from bias-corrected logistic regression testing differences between olive and other host plants in acquisition rate by Philaenus spumarius as estimated by PCR detection

Host plant	Estimate	SEa	χ2 statistic	P value
Intercept	0.89	0.66	2.148	0.143
Acacia (negative control)	−3.29	1.75	7.024	0.008**
Acacia (positive control)	−1.14	1.01	1.468	0.226
Broom	−1.99	0.92	5.657	0.017*
Almond	−4.18	1.64	14.740	<0.001***
Cherry	−2.92	1.12	9.865	0.002**
Oleander	−2.19	0.86	7.942	0.005**
Periwinkle	−4.60	1.61	19.460	<0.001***
Polygala	−0.89	0.80	1.388	0.239

The plant species name indicates the identity of the test plant

^a SE standard error of the coefficient estimate

* P < 0.05; ** P < 0.01; *** P < 0.001