SOME BIOLOGICAL CHARACTERISTICS OF WALNUT APHID, CHROMAPHIS JUGLANDICOLA (KALTENBACH) (HOMOPTERA: APHIDIDAE) IN KARAJ

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RAKHSHANI E.; TALEBI ALI ASGHAR; SADEGHI SEYED EBRAHIM

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Journal: Journal of Entomological Society of Iran Year:2000 | Volume:20 | Issue:1 Page(s): 25-41

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Title

SOME BIOLOGICAL CHARACTERISTICS OF WALNUT APHID, CHROMAPHIS JUGLANDICOLA (KALTENBACH) (HOMOPTERA: APHIDIDAE) IN KARAJ

Author(s)

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

Keywords

WALNUT APHIDQ4

CHROMAPHIS JUGLANDICOLAQ3

POPULATION FLUCTUATIONQ3

KARAJQ3

Abstract

Population fluctuation of WALNUT APHID, CHROMAPHIS JUGLANDICOLA (Kaltenbach) was closely evaluated during the 2000 growing season. The studies were conducted in two noncommercial walnut orchards in KARAJ (Alborz Research Center and campus of College of Agriculture, Tarbiat Modarres University). Population of aphids were assessed weekly as young nymphs (I and II instars), old nymphs (Ill and IV instars), and adults. Population indices of WALNUT APHID during the growing season in both sampling sites showed a spring peak, followed by a rapid decline in summer, and ultimate increase in fall. The maximum number were 211.8±13.45 and 81.37±14.11 aphids per leaf in Alborz research center, and College of Agric., in mid May, respectively. Mean aphid per leaf in spring, summer and autumn were 74.93±4.87, 0.73±0.22 and 1.61±0.11 individuals in Alborz Research Center and 33.96±2.20, 1.65±0.11 and 2.77±0.22 in College of Agric., respectively. There was no significant difference between aphid densities in the four cardinal points. The sexual aphids appeared at leaf drop period and mated oviparous aphids deposited their hibernating eggs in the basal cracks of host-tree buds.

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APA: Copy

RAKHSHANI, E., TALEBI, ALI ASGHAR, & SADEGHI, SEYED EBRAHIM. (2000). SOME BIOLOGICAL CHARACTERISTICS OF WALNUT APHID, CHROMAPHIS JUGLANDICOLA (KALTENBACH) (HOMOPTERA: APHIDIDAE) IN KARAJ. JOURNAL OF ENTOMOLOGICAL SOCIETY OF IRAN (JESI), 20(1), 25-41. SID. https://sid.ir/paper/47835/en

Vancouver: Copy

RAKHSHANI E., TALEBI ALI ASGHAR, SADEGHI SEYED EBRAHIM. SOME BIOLOGICAL CHARACTERISTICS OF WALNUT APHID, CHROMAPHIS JUGLANDICOLA (KALTENBACH) (HOMOPTERA: APHIDIDAE) IN KARAJ. JOURNAL OF ENTOMOLOGICAL SOCIETY OF IRAN (JESI)[Internet]. 2000;20(1):25-41. Available from: https://sid.ir/paper/47835/en

IEEE: Copy

E. RAKHSHANI, ALI ASGHAR TALEBI, and SEYED EBRAHIM SADEGHI, “SOME BIOLOGICAL CHARACTERISTICS OF WALNUT APHID, CHROMAPHIS JUGLANDICOLA (KALTENBACH) (HOMOPTERA: APHIDIDAE) IN KARAJ,” JOURNAL OF ENTOMOLOGICAL SOCIETY OF IRAN (JESI), vol. 20, no. 1, pp. 25–41, 2000, [Online]. Available: https://sid.ir/paper/47835/en

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