Result of Fungicides efficacy Evaluation for the Control of Garlic (Allium Sativum L.) Rust (Puccinia Allii Rudolphi) at Holetta, Ethiopia
Habtewold Kifelew*, Zebenay Dagne, Samuel Tilahun
Citation : Habtewold Kifelew, Zebenay Dagne, Samuel Tilahun, Result of Fungicides efficacy Evaluation for the Control of Garlic (Allium Sativum L.)Rust (Puccinia Allii Rudolphi) at Holetta, Ethiopia International Journal of Research Studies in Agricultural Sciences 2019, 5(5) : 1-4.
The trial was conducted to evaluate fungicide efficacy for the control of Garlic rust at Holeta during 2017 and 2018 cropping season. Four type of fungicide from them three systemic:-250 gram/L propiconazole (Tilt 250EC), a mixture of Thiophanate-Methyl 310 gram/L and Epoxiconazole 187gram/L (Rex Due) and Propiconazole; one contact fungicide chlorathalonil 75% (Rova) and untreated control arranged in RCBD with three replications were used for the study. Rust was found reduce bulb weight, bulb diameter, number of cloves per bulb 55.9%, 16.33%, 33.6% respectively. Yield was found reduced significantly, Rex Duo and Propiconazole were found superior in controlling of rust and give the highest yield 1881kg/ha and 1913kg/ha in 2017 and 2018 respectively. There was up to 106% yield advantage were obtained from Rex Duo sprayed plot in 2017 and 37.8% in 2018 cropping season.There was a significant negative correlation observed between Bulb weight, bulb diameter, number of cloves per bulb and yield to that of area under diseases progress curve (AUDPC).Spraying Rex Duo twice at 21-days interval starting from the onset of the disease insured a gain of 46818.125 Ethiopian Birr (ETB) per hectare additional net benefit and maximum marginal rate of return 1440.6%.