SEASONAL VARIABILITY OF BRACHYCAUDUS AMYGDALINUS AND B. HELICHRYSI IN SHAHR-E KORD

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NOURBAKHSH S.H.A.; SOLEYMANNEZHADIAN E.; MOSADEGH S.M.S.; REZVANI ALI; SHISHEHBOR P.

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Journal: Applied Entomology and Phytopathology Year:2007 | Volume:75 | Issue:1 (83) Page(s): 81-93

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Title

SEASONAL VARIABILITY OF BRACHYCAUDUS AMYGDALINUS AND B. HELICHRYSI IN SHAHR-E KORD

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Keywords

ALMONDQ2

SHAHR-E KORDQ2

SEASONAL VARIABILITYQ3

BRACHYCAUDUS AMYGDALINUS AND B. HELICHRYSIQ3

Abstract

The prevalent aphid pests of ALMOND are Brachycaudus amygdalinus Schout. (Hom.: Aphididae) and B. helichrysi Kalt. In Chahar-Mahal va Bakhtiari province. SEASONAL VARIABILITY of B. amygdalinus and B. helichrysi was studied in Shahre-Kord during 2003 and 2004. Aphid stages were counted in 100 sample unites, (twigs with 5 centimeter lengths), in 10 trees. The results showed that gynoparous of the two species were observed on ALMOND trees in mid October in SHAHR-E KORD. Overwintering eggs were produced by viviparous females and laid on twigs near the developmental and flowering buds. The eggs of these two species were in diapause stage in winter. The fundatrices, which were produced from overwintered eggs, were apeterous with robust appearance. Many numbers of fertilized overwintered eggs died during winter so that 4.1% and 0.4% of two species remained to establish colonies on ALMOND trees in 2003 and 2004, respectively. The viviparous forms produced from fundatrices and developed rapidly in April and May and reached to a high density of 116 B. helichrysi on 5 centimeter twigs. B. helichrysi developed at lower temperature and produced higher population density in SHAHR-E KORD. B. amygdalinus migrated to Polygonum persicaria L., P. aviculare L., P. patulum M. B. and P. aridum but B. helichrysi had many foliage hosts in summer.

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APA: Copy

NOURBAKHSH, S.H.A., SOLEYMANNEZHADIAN, E., MOSADEGH, S.M.S., REZVANI, ALI, & SHISHEHBOR, P.. (2007). SEASONAL VARIABILITY OF BRACHYCAUDUS AMYGDALINUS AND B. HELICHRYSI IN SHAHR-E KORD. APPLIED ENTOMOLOGY AND PHYTOPATHOLOGY, 75(1 (83)), 81-93. SID. https://sid.ir/paper/13169/en

Vancouver: Copy

NOURBAKHSH S.H.A., SOLEYMANNEZHADIAN E., MOSADEGH S.M.S., REZVANI ALI, SHISHEHBOR P.. SEASONAL VARIABILITY OF BRACHYCAUDUS AMYGDALINUS AND B. HELICHRYSI IN SHAHR-E KORD. APPLIED ENTOMOLOGY AND PHYTOPATHOLOGY[Internet]. 2007;75(1 (83)):81-93. Available from: https://sid.ir/paper/13169/en

IEEE: Copy

S.H.A. NOURBAKHSH, E. SOLEYMANNEZHADIAN, S.M.S. MOSADEGH, ALI REZVANI, and P. SHISHEHBOR, “SEASONAL VARIABILITY OF BRACHYCAUDUS AMYGDALINUS AND B. HELICHRYSI IN SHAHR-E KORD,” APPLIED ENTOMOLOGY AND PHYTOPATHOLOGY, vol. 75, no. 1 (83), pp. 81–93, 2007, [Online]. Available: https://sid.ir/paper/13169/en

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