A COMPARATIVE STUDY ON THE FECUNDITY,DEVELOPMENTAL TIME AND ADULT LONGEVITY OF WALNUT APHID, CHROMAPHIS JUGLANDICOLA (KALT.), AND ITS . PARASITOID WASP, TRIOXYS PALLIDUS (HA!.)

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TALEBI ALI ASGHAR; RAKHSHANI E.; SADEGHI SEYED EBRAHIM; FATHIPOUR Y.

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Journal: Journal of Water and Soil Science Year:2002 | Volume:6 | Issue:3 Page(s): 0-0

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Title

A COMPARATIVE STUDY ON THE FECUNDITY,DEVELOPMENTAL TIME AND ADULT LONGEVITY OF WALNUT APHID, CHROMAPHIS JUGLANDICOLA (KALT.), AND ITS . PARASITOID WASP, TRIOXYS PALLIDUS (HA!.)

Author(s)

TALEBI ALI ASGHAR | RAKHSHANI E. | SADEGHI SEYED EBRAHIM | FATHIPOUR Y. | Issue Writer Certificate

Keywords

WALNUT APHID

PARASITOID WASP

DEMOGRAPHIC LIFE TABLE

Abstract

Fertility, developmental time and adult longevity of WALNUT APHID, Chromaphis juglandicola (Kalt.) and its PARASITOID WASP, Trioxys pallidus (Hal.) were studied under controlled conditions with a constant temperature of 26±2°C, relative humidity of 60±5%, and 16:8 (L:D) photoperiod. Populations of WALNUT APHID and PARASITOID WASP were reared on walnut seedling in a growth chamber. The mean developmental period, daily fertility rate, and progeny sex ratio were combined to construct DEMOGRAPHIC LIFE TABLEs. From these tables, intrinsic natural rate of increase (rm),net reproductive rate (Ro)and mean generation time (Tc) were calculated. The net reproductive rate (female offsprings per female per generation) and intrinsic rate of natural increase values were 34.69 and 0.278 in WALNUT APHID and 53.85 and 0.385 in parasitoid, respectively. The mean generation time was 12.75 days in WALNUT APHID and 10.35 days in parasitoid. Values of rw (weekly multiplication of the females) indicates that T.pallidus is able to multiply 14.81 times per week, whereas the population of WALNUT APHID multiplies by only 7.001 times in the same period. The population of parasitoids doubled within 1.8 days while the aphid took 2.49 days. Mean pre-imaginal period was 9.14±0.34 days for male and 9.16±0.12 days for female parasitoids on a mixture of different nymphal stages of host. In WALNUT APHID it was 9.30±0.10days. The pre-imaginal periods of parasitoid decreases as the aphid host ages. Longevity of adult male and female was 6.17±0.22 and 6.87±0.23 days, respectively, and 12.24±0.94 days for WALNUT APHID.

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APA: Copy

TALEBI, ALI ASGHAR, RAKHSHANI, E., SADEGHI, SEYED EBRAHIM, & FATHIPOUR, Y.. (2002). A COMPARATIVE STUDY ON THE FECUNDITY,DEVELOPMENTAL TIME AND ADULT LONGEVITY OF WALNUT APHID, CHROMAPHIS JUGLANDICOLA (KALT.), AND ITS . PARASITOID WASP, TRIOXYS PALLIDUS (HA!.). WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 6(3), 0-0. SID. https://sid.ir/paper/539819/en

Vancouver: Copy

TALEBI ALI ASGHAR, RAKHSHANI E., SADEGHI SEYED EBRAHIM, FATHIPOUR Y.. A COMPARATIVE STUDY ON THE FECUNDITY,DEVELOPMENTAL TIME AND ADULT LONGEVITY OF WALNUT APHID, CHROMAPHIS JUGLANDICOLA (KALT.), AND ITS . PARASITOID WASP, TRIOXYS PALLIDUS (HA!.). WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2002;6(3):0-0. Available from: https://sid.ir/paper/539819/en

IEEE: Copy

ALI ASGHAR TALEBI, E. RAKHSHANI, SEYED EBRAHIM SADEGHI, and Y. FATHIPOUR, “A COMPARATIVE STUDY ON THE FECUNDITY,DEVELOPMENTAL TIME AND ADULT LONGEVITY OF WALNUT APHID, CHROMAPHIS JUGLANDICOLA (KALT.), AND ITS . PARASITOID WASP, TRIOXYS PALLIDUS (HA!.),” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 6, no. 3, pp. 0–0, 2002, [Online]. Available: https://sid.ir/paper/539819/en

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