Effect of cold storage temperature on quality of the parasitoid, Trichogrammatoidea bactrae Nagaraja (Hymenoptera: Trichogrammatidae)

Egyptian Journal of Biological Pest Control

Table 7 Percentages of Trichogrammatoidea bactrae females in parental and F₁ generations during storage of parasitoid pre-pupae at different low temperatures

Storage period (weeks)	Females (%)
	(a) Parental generation			(b) F₁ progeny
	4 °C	7 °C	10 °C	4 °C	7 °C	10 °C
Control	82.78 ± 1.52A			91.12 ± 1.65A
1	81.55 ± 1.07Aa	68.87 ± 3.57CDb	82.33 ± 1.93Aa	90.00 ± 0.71Aa	77.00 ± 1.49Bb	91.00 ± 1.49ABa
2	82.55 ± 0.82Aa	67.37 ± 1.63Db	83.22 ± 2.01Aa	89.25 ± 0.49ABb	70.12 ± 1.57Cc	91.12 ± 0.48Aa
3	82.44 ± 1.60Aa	70.87 ± 0.35Cb	81.89 ± 1.52Aa	88.00 ± 0.57Ba	71.00 ± 0.96Cb	88.00 ± 0.33BCa
4	83.89 ± 0.48Aa	71.37 ± 1.40BCc	81.00 ± 0.63Ab	84.12 ± 1.01Ca	70.75 ± 0.96Cb	87.25 ± 0.41Ca
5	78.89 ± 0.12Aa	70.50 ± 2.34Cb	78.33 ± 0.78BCa	81.00 ± 1.66Da	70.00 ± 0.82Cb	87.12 ± 0.29Ca
6	81.11 ± 0.27Ab	74.00 ± 1.00Bc	85.00 ± 1.31Aa	73.00 ± 0.42Eb	70.87 ± 0.69Cc	82.25 ± 0.36Da
7	81.00 ± 0.77Aa	71.37 ± 1.15BCb	79.11 ± 0.74ABa	–	70.25 ± 1.01Cb	65.50 ± 1.43Fc
8	66.33 ± 0.26Bc	69.25 ± 1.50Cb	76.00 ± 1.07Ca	–	70.50 ± 1.02Cb	71.12 ± 1.87Eb
9	50.00 ± 0.00Cc	63.87 ± 0.54Ea	51.75 ± 0.41Db	–	63.25 ± 0.56D	–

Means ± SE sharing the same capital letters in the same columns, and same small letters in the rows are statistically insignificant (P ≥ 0.05)