فراسنجه‌های جدول زندگی Wolf (Hemiptera:Anthocoridae) Orius nigerبا تغذیه از سفیدبالک گلخانه Trialeurodes vaporariorum (Westwood) (Hemiptera: Aleyrodidae) در شرایط آزمایشگاهی

Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae) is cosmopolitan whitefly that attacks more than 82 host plant species. It is a serious pest under greenhouse/glasshouse conditions . Orius spp are polyphagous, but they show a preference for attacking larval and adult thrips as well as the eggs and larva of whiteflies. This study was conducted to assess fertility life table parameters of Orius niger Wolff (Hemiptera: Anthocoridae) using the greenhouse whitefly T. vaporariorum as prey were studied in a climate room under 25±1 ºC, 65±10% RH and 16 h of artificial light conditions. These data would be useful in biocontrol programs using O. niger as a predator of whiteflies. T. vaporariorum was reared on cucumber and the second nymphal stage was used as prey. Developmental time during the nymphal stage was 19.38±0.278 days for both sexes. The oviposition days and female longevity were 31.21±0.37 and 63.69±1.01 days, respectively. Total egg number was 134.57± 2.74. The Intrinsic rate of increase per day(rm) was 0.122, net reproductive rates (Ro) was 62.8 females/female, mean generation time (T0) was 33.964 days, gross reproductive rate (GRR) was 74.2 and finite rate of increase (λ) was 1.13. Adult pre-ovipositional period and total preoviposition period (TPOP) were 3.93±0.22 and 23.57±0.37 days, respectively. As a result O. niger has the potential to be used as a natural enemy against T. vaporariorum in greenhouses.