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Abstrakt

Efficacy of Fungicides Against Powdery Mildew (Pseudoidium jatrophae) of Physic Nut (Jatropha curcas L.) at Alage and Koka Districts of Ethiopia

Desta Abayechaw*, Negasu Guteta, Ano Wariyo

Powdery mildew caused by the fungus (Pseudoidium jatrophae) was previously described as Oidium heveae Stein by Viégas in Brazil. In Ethiopia, physic nut loses its economic part, like oil content and quality due to powdery mildew disease. Thus, the present study was conducted during the cropping seasons of 2016 and 2017 at Alage and Koka experimental fields to test the efficacy of different fungicides in controlling powdery mildew diseases of physic nut. Results revealed that tebuconazole recorded the highest reduction of powdery mildew disease severity after 1st, 2nd and 3rd sprays of fungicides and was found significantly superior as compared to other tested fungicides followed by Triadimefon (Noble 25 WP). The highest percent disease severity was recorded in the untreated control plot. In general, all the fungicide treatments significantly reduced the severity of the disease more than control.

Haftungsausschluss: Dieser Abstract wurde mit Hilfe von Künstlicher Intelligenz übersetzt und wurde noch nicht überprüft oder verifiziert.