Study on the Seasonal Incidence of Agromyzid Stem Fly Ophiomyic phaseoli Tryon (Diptera: Agromyzidea) in Blackgram

S. MANOHAR and M. BALASUBRAMANIAN

doi:https://doi.org/10.29321/MAJ.10.A02872

Madras Agricultural Journal

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Study on the Seasonal Incidence of Agromyzid Stem Fly Ophiomyic phaseoli Tryon (Diptera: Agromyzidea) in Blackgram

Author: S. MANOHAR and M. BALASUBRAMANIAN,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 67, Issue: aug-aug,

DOI:https://doi.org/10.29321/MAJ.10.A02872

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Abstract

A trial was conducted with 12 monthly sowings from December, 1976 to November. 1977 with blackgram (CO 2) at Coimbatore to study the seasonal incidence of stem fly Ophiomyia phaseoli Tryon. The study revealed that the stem fly incidence was minimum in September. October and November sown crops and was maximum in March, July and August sown crops. The stem fly incidence on 45th day after sowing was positively corre lated with total rainfall during the corresponding period and was not correlated with other weather focrors.

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