STUDY ON BIOLOGY OF EUROPEAN ELM SCALE (GOSSYPARIA SPURIA MODEER (HOM: ERIOCOCCIDAE)) IN ISFAHAN

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JALALI ZAND A.R.; HATAMI B.; KAMALI K.; OSTOVAN HADI; BEHDAD E.

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Journal: Year:2006 | Volume:12 | Issue:3 Page(s): 535-543

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Title

STUDY ON BIOLOGY OF EUROPEAN ELM SCALE (GOSSYPARIA SPURIA MODEER (HOM: ERIOCOCCIDAE)) IN ISFAHAN

Author(s)

Keywords

COLZA EUROPEAN ELM SCALEQ3

GOSSYPARIA SPURIAQ3

BIOLOGAYQ3

ELMQ3

Abstract

The European ELM scale GOSSYPARIA SPURIA Modeer has been known as one of the serious pests of the ELM trees. In order to study biological aspect s of this pest, the branches of ELMs trees of Isfahan were sampled. The type of reproduction being bisexual and also the embryonic developmental period and the interval between egg laying and egg hatching were determined. The possibility of parthenogenesis was indicated by setting virgin females on ELM saplings. The results showed that this pest has only one generation per year in Isfahan with two nymphal stages. The second nymphal stage is the hibernating stage. The first nymphal stage takes six weeks while the second nymphal stage takes about six months. The second male nymphal stage emerges in the last of January to the first of February the second male nymphal stage molts to times and change to prepupa then pupa and finally a winged or a wingless adult male appear. The second female nymphal stage changes an adult after one molting. The whole females body resembles to an egg sack after mating. Thirty to forty five minute after egg laying the nymphs batch from the egg. After 30 minutes the nymphs are ready to be taken apart females body. This pest is a facultative parthenogenesis.

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APA: Copy

JALALI ZAND, A.R., HATAMI, B., KAMALI, K., OSTOVAN, HADI, & BEHDAD, E.. (2006). STUDY ON BIOLOGY OF EUROPEAN ELM SCALE (GOSSYPARIA SPURIA MODEER (HOM: ERIOCOCCIDAE)) IN ISFAHAN. JOURNAL OF AGRICULTURAL SCIENCES, 12(3), 535-543. SID. https://sid.ir/paper/386204/en

Vancouver: Copy

JALALI ZAND A.R., HATAMI B., KAMALI K., OSTOVAN HADI, BEHDAD E.. STUDY ON BIOLOGY OF EUROPEAN ELM SCALE (GOSSYPARIA SPURIA MODEER (HOM: ERIOCOCCIDAE)) IN ISFAHAN. JOURNAL OF AGRICULTURAL SCIENCES[Internet]. 2006;12(3):535-543. Available from: https://sid.ir/paper/386204/en

IEEE: Copy

A.R. JALALI ZAND, B. HATAMI, K. KAMALI, HADI OSTOVAN, and E. BEHDAD, “STUDY ON BIOLOGY OF EUROPEAN ELM SCALE (GOSSYPARIA SPURIA MODEER (HOM: ERIOCOCCIDAE)) IN ISFAHAN,” JOURNAL OF AGRICULTURAL SCIENCES, vol. 12, no. 3, pp. 535–543, 2006, [Online]. Available: https://sid.ir/paper/386204/en

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