Seasonal Incidence of Pea Leaf Miner Chromatomyia horticola Goureau Infesting Garden Pea
Keywords:Chromatomyia horticola, Pisum sativum, incidence, population dynamics, correlation coefficients, regression, weather parameters, temperature, humidity
The seasonal incidence of pea leaf miner Chromatomyia horticola Goureau, on garden pea (Pisum sativum L.) was assessed during 2017 and 2018 at the research farm of Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Chatha. The pooled data revealed that the incidence show continuous fluctuation, with first appearance being during the 49th standard meteorological week (SMW)- 0.95 miners/ leaf which reached its peak (11.00 miners/ leaf) during the 4th SMW, then reached to minimum (1.26 miners/ leaf ) during the 12th SMW. The correlation studies indicated highly significant negative association between incidence and maximum temperature (-0.714**), significant positive one with evening relative humidity (RH) (0.544*); and non-significant ones with minimum temperature (-0.385) and wind speed (-0.74), morning RH (0.258), sunshine (0.013) and rainfall (0.356).
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