Seasonal abundance of predatory coccinellid beetles in different cropping ecosystems at PantnagarPantnagar Journal of Research, Volume - 19, Issue - 2 ( May-August, 2021)
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The purpose of this study was carried out to find out the seasonal abundance of predatory coccinellid species in various crop ecosystems at Pantnagar. Four species viz., Coccinella septempunctata (Linnaeus), Coccinella transversalis (Linnaeus), Cheilomenes sexmaculata (Fabricius) and Propylea dissecta (Mulsant) were observed throughout the study period with their highest populations observed during 12th, 1st, 15th and 12th standard week respectively, from field crops (Wheat, Mustard, Cotton, Maize, etc), fruit crops (Mango, Guava, Pomegranate), vegetable crops (Potato, Brinjal, Cabbage, etc.) and ornamental plants (Rose, Chrysanthemum, Hibiscus, etc.). Some other coccinellid species like Anegleis cardoni (Weise), Illeis koebelei (Timberlake) and Hippodamia variegate (Goeze) were considered rare at Pantnagar as these were observed only 50th, 14th and 15th standard weeks respectively in Rose, Dahlia and Hibiscus flowers in very small numbers.
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