Effects of Garlic Rust (Puccinia allii) on Yield and Yield Components of Garlic in Bale Highlands, South Eastern Ethiopia

Determination of Optimum Nativo SC 300 (Trifloxystrobin 100g/l + Tebuconazole 200g/l) Spray Frequency for Control of Rust (Puccinia allii Rudolphi) on Garlic in Bale Highlands, South Eastern Ethiopia

“…Nativo SC 300 (Trifloxystrobin 100g/l + Tebuconazole 200g/l) is one of the recommended chemicals for the control of the disease [6]. One of the active ingredients of this fungicide, tebuconazole, is found effective in controlling garlic rust in Ethiopia [13]. Spraying a fungicide for the control of a given disease at different frequency has different effect on the development of the disease.…”

“…Garlic rust is the most important disease of the crop in the highlands of Bale and causing a total bulb yield loss as high as 58.75% [13]. The fungus does not attack the garlic bulb directly, but its damage on the leaves has indirect effect of reducing the size and quality of the bulbs at harvest [5,9].…”

“…There are different fungicides recommended for the control of garlic rust on different Allium crops in different countries [5,12,13]. Nativo SC 300 (Trifloxystrobin 100g/l + Tebuconazole 200g/l) is one of the recommended chemicals for the control of the disease [6].…”

“…Next to onion, garlic is the second most widely cultivated Allium species in Ethiopia [3]. In the highlands of Bale, farmers produce garlic under both irrigation and rain fed condition during both 'Bona' (August to December) and 'Gena' (March to July) cropping seasons for commercial purpose [13].…”

“…Insects and fungi are the major pests of the crop in different parts of the world [4]. Among the fungal diseases, garlic rust caused by Puccinia allii Rudolphi is the most important disease of the crop in almost all garlic producing regions of Ethiopia [10,13].…”