Table 2.

Mortality, number of eggs and hatched western flower thrips larvae per leaf disk on chrysanthemum leaf disks infiltrated with different concentrations of pyrethrins

Treatment of leaf disks	Mortality (%)	Eggs	Hatched larvae
Untreated leaf disks	0 a	2.0 ± 0.4 a	1.4 ± 0.3 a
Leaf disks containing 0.2 % Tween	0 a	1.7 ± 0.5 a	1.3 ± 0.3 ab
Leaf disks containing 0.01 % pyrethrins	25.0 ± 6.7 b	1.3 ± 0.3 ab	0.8 ± 0.2 b
Leaf disks containing 0.1 % pyrethrins	29.2 ± 7.9 b	0.7 ± 0.2 bc	0.1 ± 0.1 c
Leaf disks containing 1 % pyrethrins	68.8 ± 9.3 c	0 c	0 c

Values (mean ± SE, N = 48 per treatment) followed by the same letter within a column are not significantly different (ANOVA: P > 0.05)