Table 1.

Mean (±SEM) frequency (no. of bouts) of feeding activities by Diaphorina citri adults and nymphs on weed species and C. macrophylla during 18 h EPG recordings. Number of replicates: Primrose n = 18, Spanish needle n = 22, Dogfennel n = 18, and C. macrophylla n = 22.

		Psyllid Life Stage		Plant Type
Waveform	Effect	Nymph	Adult	Primrose	Spanish Needle	Dogfennel	Citrus macrophylla	F-Value	P > F
C Intercellular passage	Stage	29 ± 2	29 ± 2					0.003	0.95
	Plant type			30 ± 3	32 ± 3	23 ± 3	32 ± 2	3.21	0.02
	Interaction							3.90	0.01
D Phloem penetration	Stage	3.4 ± 0.4	0.7 ± 0.4					21.3	<0.0001
	Plant type			0.09 ± 0.5	0.6 ± 0.5	1.5 ± 0.5	5.1 ± 0.4	21.2	<0.0001
	Interaction							4.6	0.004
E1 Phloem salivation	Stage	3.4 ± 0.4	0.7 ± 0.4					20.6	<0.0001
	Plant type			0.09 ± 0.5	0.6 ± 0.5	1.5 ± 0.5	5.2 ± 0.4	21.4	<0.0001
	Interaction							6.1	0.006
E2 Phloem ingestion	Stage	1.4 ± 0.1	0.3 ± 0.1					22.64	<0.0001
	Plant type			0.08 ± 0.2	0.0 ± 0.0	0.0 ± 0.0	2.8 ± 0.2	58.6	<0.0001
	Interaction							21.9	<0.0001
G Xylem feeding	Stage	6 ± 1	7 ± 1					0.77	0.38
	Plant type			6.9 ± 1	9.6 ± 1	6.8 ± 1	4.3 ± 1	5.1	0.002
	Interaction							2.0	0.11
Np Non-probing activities	Stage	20 ± 1	22 ± 1					0.84	0.36
	Plant type			23 ± 2	22 ± 2	15 ± 2	23 ± 2	3.6	0.01
	Interaction							4.4	0.005