Table 1. Average mortality of 2^nd-instar nymphs and adult females after inoculated with the four strains.

Strain	2nd-instar nymph Mortality (%±SE)	Adult female Mortality (%±SE)
V3.4504	53.67±2.08c	86±1b
V3.4505	61.33±1.53d	100c
HEB01	40.33±0.58b	83±4.36b
HEB02	32.67±2.52a	41.33±2.08a

Note: Means followed by different letters in each column represents differ significantly between different strains (Tukey-HSD test: P<0.05).