Bacterial Soft Rot Of Tubers Induced By Erwinia Spp. (Jones)

📄 Project Abstract

The incidence of bacterial soft rot was investigated in three markets in Zaria area namely: Samaru, Wusasa and Sabon Gari markets. Examination of symptoms on tubers (both wounded and unwounded), were done on tubers stored under different environmental conditions in order to determine the factor(s) that might predispose them to attack by the soft rot pathogen. High populations of Erwinia spp. were isolated from the samples collected from various markets, which was an indication of high inoculum level from the various soils of origin or storehouses. Tubers without symptoms were frequently contaminated, usually at eye, lenticels and heel end, suggesting contamination from mother tuber to progeny. Aqueous extracts of neem (Azadirachta indica A. Juss), Eucalyptus leaves (Eucalyptus citrodorus (L)), Lemon grass (Cymbopogon citratus (stapf)), Garlic bulb (Allium Sativum (Linn)), Ginger (Zingiber officinale) (Roscoe)) and Aloe vera were evaluated for the management of bacterial soft rot. Two m...