Table 3.

Mean numbers of eggs and larvae in tiller samples, and mean number of immatures per tiller taken from the field trials at the lowland pasture and tussock grassland sites.

Plant species
	Lowland pasture site				Tussock grassland site
	Chionochloa rigida	Festuva novae-zelandica	Poa colensoi	Lolium perenne	Chionochloa rigida	Festuva novae-zelandica	Poa colensoi	Lolium perenne
Mean no. eggs in tillers	0	0	0	14.6 (2.4)	0	0	0	5.43 (0.96)
Mean no. larvae in tillers	0.1 (0.06)	0.3 (0.12)	0.13 (0.08)	5.47 (0.81)	0	0	0	0.69 (0.21)
Mean no. immatures per tiller	0.01 (0.01)	0.03 (0.01)	0.013 (0.01)	2 (0.28)	0	0	0	0.61 (0.11)
Mean no. adult weevils per plant	1.2 (0.27)	1.07 (0.34)	0.83 (0.22)	3.03 (0.46)	2.7 (0.42)	2.53 (0.31)	2.87 (0.34)	5.57 (0.58)
Proportion of new generation adults	0.30	0.15	0.08	0.64	0.11	0.06	0.07	0.14

The mean number of adult weevils, and proportion of them which were “new” generation, extracted from plants at the end of the trials is also shown. Standard errors are given in brackets.