Effectiveness of sublethal doses of Metarhizium robertsii with Bacillus thuringiensis, individual and combined treatment against the tomato leafminer in vitro

The objective of the present study was to evaluate how susceptible Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) populations are to Metarhizium robertsii and Bacillus thuringiensis (Bt) in laboratory conditions.