In-vivo Evaluation of Nanoformulations of Mancozeb against Alternaria solani on Tomato

Controlled release (CR) nanoformulations of mancozeb (manganese-zinc double salt of N, N-bis dithiocarbamic acid), a protective fungicide, have been developed using poly(ethylene glycols) based functionalized amphiphilic copolymers and evaluated in-vivo for the management of Alternaria solani on tomato. The number of infected leaflets/plants in plots were less (2–4) in the developed formulations treated plants as compared to the commercials products. Consequently, number of fruits plant⁻¹ was more (5–7.5 fruits plant⁻¹) at 50 ppm. Depending upon the matrix of the polymer used, the formulations regulated release of mancozeb to achieve disease control over desired period, leading to reduced number of applications.