Life Table of Spodoptera exigua (Lepidoptera: Noctuidae) on Five Soybean Cultivars

Table 2

The reproduction parameters (Mean ± SEM) of the beet armyworm Spodoptera exigua on five soybean cultivars.

Parameters			Soybean cultivars
	JK	Sahar	L17	Williams	BP
Gross fecundity rate	549.0±79.8^b	558.3±57.9^b	555±44.4^b	771.3±49.2^a	462.9±34.8^b
Gross fertility rate	203.6±29.6^b	202.1±32.5^b	144.5±11.6^b	292.4±20.7^a	134.2±10.1^b
Net fecundity rate	114.9±12.5^b	96.1±12.5^b	80.5±6.9^b	244.1±19.4^a	84.0±8.5^b
Net fertility rate	42.6±4.7^b	29.7±17.0^bc	21.0±1.8^c	102.5±8.2^a	24.4±2.5^c
Mean egg per day	20.3±2.9^bc	31.0±3.2^a	21.4±1.7^bc	24.9±1.6^ab	14.9±1.1^c
Mean fertile egg per day	7.5±1.1^bc	11.2±1.8^a	5.6±0.5^c	9.4±0.7^ab	4.3±0.3^c

Means followed by the same letters in a row are not significantly different (P < 0.01).