In vitro studies on the compatibility assessment of certain agrochemicals with microbial biopesticides used in tea [Camellia sinensis (L.) O. Kuntze] of Assam, Northeast India

Abstract

In the present investigation, an attempt was made to assess the compatibility of seven biopesticides such as Aspergillus niger (Identification code; MM/PSM/10), Azospirillum brasilense (Identification code; MM/AZM/10), Bacillus subtilis (MTCC121), Beauveria bassiana (MTCC984), Trichoderma harzianum (IMI356100), Trichoderma viride (IMI356099), Verticillium lecanii (MTCC956), isolated from the native tea ecosystem, against twenty five agrochemicals using a novel approach. The results indicated the ability of A. niger and T. harzianum to emulate in association with all the agrochemicals tested in vitro. The compatibility shown by some of the biopesticides against the agrochemicals suggests their selective substantiation to cope with the integration of chemical supplements.