Effect of chemical pesticides on vegetative growth of M. anisopliae in compatibility studies

Abstract

The results on compatibility of different chemical pesticides with M. anisopliae clearly indicate that the highest mycelial growth (75.17 mm) was observed in flonicamid 50% WG followed by imidacloprid 17.8% SL (70.50 mm). The minimum (16.48 per cent) growth inhibition of M. anisopliae was observed in pesticidal treatment with flonicamid 50% WG which indicates its better compatibility with M. anisopliae. Among chemical pesticides tested for their compatibility, the minimum per cent growth inhibition was observed in flonicamid 50% WG (16.48 per cent) followed by imidacloprid 17.8 SL (21.67 per cent), deltamethrin 2.5% EC (26.30 per cent) and chlorantraniliprole 18.5% SC (27.78 per cent) indicating better compatibility with M. anisopliae than dimethoate 30% EC (69.07 per cent), clothanidin 25% WG (54.81 per cent) and difenthiuron 50% WP (51.30 per cent) in which more than 50 per cent growth inhibition was observed. Among fungicides, all the three fungicides propiconazole 25% EC (94.44 per cent), difenoconazole 25% EC (77.22 per cent) and copper oxychloride 50% WP (56.85 per cent) indicating that they are not compatible with M. anisopliae.