biology and life table parameters of nabis pseudoferus by feeding on cotton aphid aphis gossypii
نویسندگان
چکیده
predatory damsel bug, nabis pseudoferus remane has a high density in the alfalfa fields and feeds on different types of prey. in this study, biological properties and life table statistics of n. pseudoferus by feeding on melon aphids have been determined under controlled conditions (at 25±1˚c, 60±10% relative humidity and under a photoperiod of 16h light/ 8h dark). data analysis carried out based on age-stage two sex life table program. the results indicated that the mean duration of eggs, 1st instar, 2nd instar, 3rd instar, 4th instar, 5th instar nymphs and adult longevity was 9.00±0.05, 2.89±0.02, 2.86±0.02, 3.10±0.03, 3.67±0.03, 5.87±0.05 and 19.47±0.52, days respectively. life table statistics include r, r0, grr, λ and t were estimated as 0.06±0.002 day-1, 16.39±1.99 eggs/individual, 59.58±6.16 eggs/individual, 1.07±0.002 day-1 and 43.97±0.31days, respectively. the death and birth rates for this predator by feeding on melon aphid were determined 0.02 and 0.08, respectively. with regard to predatory habit of most life stages of n. pseudoferus and longevity of adults, this predator could be considered as a potential candidate for reducing cotton aphid populations.
منابع مشابه
Bacterial communities of the cotton aphid Aphis gossypii associated with Bt cotton in northern China.
Aphids are infected with a wide variety of endosymbionts that can confer ecologically relevant traits. However, the bacterial communities of most aphid species are still poorly characterized. This study investigated the bacterial diversity of the cotton aphid Aphis gossypii associated with Bt cotton in northern China by targeting the V4 region of the 16S rDNA using the Illumina MiSeq platform. ...
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عنوان ژورنال:
کنترل بیولوژیک آفات و بیماری های گیاهیجلد ۴، شماره ۲، صفحات ۱۲۱-۱۲۹
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