Management of White Rust in Mustard using Fungicides and Garlic Extract in Field Conditions

Indian mustard (B. juncea) is the most important species grown in India. Various diseases reported to occur on rapeseed mustard, white rust caused by Albugo candida is considered as one of the major disease due to its destructive nature and wide distribution. Efficacy of nine recommended and four new fungicides along with garlic extract in controlling the white rust disease in field, was studied. Metalaxyl + mancozeb and azoxystrobin were found highly effective in controlling white rust with no stag-head incidence, infection rate (100%) or AUDPC. Mancozeb (18.9%) and tebuconazole + trifloxystrobin (21.0%) reported significantly minimum disease index. Metalaxyl + mancozeb reported significantly maximum plant height (167.4 cm), number of primary branches (9.2 no.), number of secondary branches (16.9 no.), length of main raceme (55.5 no.), total pods on main raceme (52.4 cm), number of seeds/pod (10.34 no.) and pod length (4.38 cm).Metalaxyl+ mancozeb reported significantly maximum grain yield and test weight (2676.9 kg ha^-1,5.74 g, respectively) followed by azoxystrobin (2568.5 kg ha^-1, 5.14 g, respectively).