Search for Developmental duration

Javed Khan, Ehsan-ul-Haq, Naheed Akhtar, Waseem Ahmad Gillani*, Naila Assad**, M.Asif Masood and Irum Raza*

EFFECT OF TEMPERATURE ON BIOLOGICAL PARAMETERS OF IMMATURE STAGES OF CHRYSOPERLA CARNEA (NEUROPTERA: CHRYSOPIDAE) FEEDING ON RICE MEAL MOTH, CORCYRA CEPHALONICA EGGS

...respectively. The larval developmental duration were 11.9±0.13, 9.7±0.31, 8.2±0.14 and pupal duration were 9.2±0.10, 8.3±0.10 and 6.8±0.07 days at three temperatures respectively. Biological cycle of immature stages were 26.0±0.13, 21.8 ±0.08 and 18.0±0.56 days, respectively with total survival rate from egg to adult emergence of 82%, 68% and 42% at the respective temperature. The results indicate ...

Rizwana Sultan*, Javed Khan, Ehsan ul Haq, Tariq Mehmood**, Roshan Zada Khattak***, and Naheed Akhtar**

BIOLOGICAL PARAMETERS OF TRICHOGRAMMA CHILONIS ISHII (TRICHOGRAMMATIDAE: HYMENOPTERA) FEEDING ON SITOTROGA CEREALELLA EGGS AT THREE CONSTANT TEMPERATURES

...mn;1 °C. The maximum developmental duration (9.6 ± 0.32 days) and adult longevity (4.3 ± 0.38 days) was at 24 ±1 °C while minimum was 7.4 ±0.36 and 2.0 ±0.56 days at 32 ± 1 °C. The results indicate that temperature has a significant effect on the biological parameters of Trichogramma and with increasing temperature developmental duration decreased. Similarly effect of hos...

Maria Rauf*, Ehsan-ul-Haq**, Javed Khan**, Abdul Rehman***, Waseem Ahmad Gillani* and Asrar Ali**

BIOLOGY AND PREDATORY POTENTIAL OF COCCINELLA SEPTEMPUNCTATA LINN. ON SCHIZAPHIS GRAMINUM APHID UNDER CONTROLLED CONDITIONS

... increasing temperature, developmental duration decreases significantly. The pupal developmental duration was 14.0, 9.2 and 5.2 days, respectively which are significantly different from each other. The adult male and female longevity were 44.7, 37.7, 30.0 and 60.3, 58.9 and 43.7 days. Fecundity rate of females were 123.5, 251.5 and 293.2 eggs per female, respectively. This indicates that adult male and female

Javed Khan*, Ehsan-ul-Haq*, Habib Iqbal Javed*, Tariq Mahmood*,
Awais Rasool*, Naheed Akhtar and Saleem Abid**

BIOLOGICAL PARAMETERS AND PREDATORY POTENTIAL OF CHRYSOPERLA CARNEA (NEUROPTERA: CHRYSOPIDAE) FEEDING ON WHEAT APHID SCHIZAPHIS GRAMINUM (HEMIPTERA: APHIDIDAE) UNDER LABORATORY CONDITIONS

... 87.0% hatchability. The developmental duration of first, second and third instar larvae were 3.2 ± 0.13, 4.0±0.21 and 4.8±0.25 days, respectively. The total larval developmental duration was 12.0 ±0.67 days with 85.05% survival rate of larvae. The larval predatory potential was 414.6±0.05 aphid per larvae. The total duration and survival rate from egg to adult emergence was 24.6± 0....

Pakistan J. Zool., Vol. 53, Iss. 2, pp 475-481

Yonghua Liu*, Xianhua Li, Xiongfei Yan and Gang Li

...mbriana. The overall developmental duration was the longest on apple (60.71 d) and peach (60.78 d) and shortest on apricot (54.55 ± 3.56 d). The cumulative survival rate was highest on apricot (64.58%) and plum (60.44%) and lowest on peach (44.50%). The average number of eggs produced was highest on apricot (175.58 eggs) and plum (178.43 eggs). Life table parameter results showed that the net reproductive rate, intrinsic growth rate, and finite grow...