STUDIES ON BIO-EFFICACY OF FORMULATIONS OF CARBENDAZIM WITH MANCOZEB 75 WP FOR THE MANAGEMENT OF LATE LEAF SPOT AND RUST OF GROUNDNUT

Abstract

Three formulations of Carbendazim+Mancozeb75 WP, a combi fungicide molecule, two systemic (Hexaconazole
and Carbendazim) and two non-systemic (Mancozeb and Chlorothalonil) fungicides were evaluated in vivo for
the management of late leaf spot of groundnut and their effect on dry pod and fodder yield. Foliar application of
Carbendazim with Mancozeb @ 2g/L was found to be highly effective in the management of late leaf spot and rust
of groundnut with higher pod yield (2768 kg/ha) and benefit cost ratio (2.50). Further, Carbendazim+Mancozeb
@ 2 g/L was superior not only in controlling diseases, but also resulted in higher percent increase in pod yield in
farm trials and large scale demonstration trials conducted in farmers fields. Based upon the results in experimental
as well as farm and large scale demonstration trials, Carbendazim+ Mancozeb75 WP @ 2g/L has been
recommended as an alternate fungicide molecule to Hexaconazole and included in the university package of
practices (POP) of University of Agricultural Sciences, Raichur, Karnataka for the management of rust and late leaf
spot of groundnut.