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Radish is a widely cultivated popular and economically important vegetable that can be consumed both as raw as well as in cooked form. However, its production is severely impacted by flea beetles almost round the year. The adults feed on leaves and larvae on roots. Numerous small shot holes on the leaves and dark stripes on the roots are the typical damage symptoms caused by beetle infestation. The biology, molecular taxonomy, damage severity and management of the Phyllotreta striolata along with economics have been studied. In the present study, an integrated organic pest management module was evaluated to control this nefarious pest in the present experiment which includes the following approaches: soil application of neem cake @ 500 kg/ha before radish seed sowing, inter-cropping with Indian mustard every alternate 8 rows as a trap crop 15 days before radish sowing, application of vermicompost enriched with Metarhizium anisopliae @ 10 g/kg of vermicompost during seed sowing; soil application of Heterorhabditis indica @ 10 kg/ha mixed with moist sand with light irrigation, need-based foliar spraying of Metarhizium anisopliae + Neem oil @ 2.5 g/lit + 2.5 ml/lit at 25 and 45 days after sowing (DAS) and Azadirachtin 300 ppm @ 5 ml/lit at 35 DAS were found significantly effective (P < 0.0001) in reducing number of shot holes (37.64/leaf), stripes on radish (7.37/root), population of adults (2.61/plant) and larvae (2.9 on radish root and rhizosphere) compared to farmers' practices (58.09, 16.48, 3.67 and 5.6, respectively) and untreated control plots (139.37, 32.46, 7.58 and 8.3, respectively) at 21 DAS. The organic IPM module had highest root yield (19.3 t/ha) accompanied by highest incremental cost benefit ratio (ICBR) of 1:2.81 followed by farmers' practices (13.9 t/ha and ICBR = 1:2.29) and untreated control (8.4 t/ha and ICBR = 1:1.92). The developed organic pest management module was found highly promising in management of radish flea beetle.

来源平台：JOURNAL OF PLANT DISEASES AND PROTECTION