Studies on bacterial leaf spot disease of tobacco
作者:
N. A. Elias,
S. M.Abdul Wajid,
G. Bhaktavatsalam,
期刊:
Tropical Pest Management
(Taylor Available online 1987)
卷期:
Volume 33,
issue 1
页码: 2-4
ISSN:0143-6147
年代: 1987
DOI:10.1080/09670878709371101
出版商: Taylor & Francis Group
关键词: tobacco;bacterial leaf spot disease;India;Erwinia chrysanthemi
数据来源: Taylor
摘要:
A new bacterial disease of tobacco, not previously reported was found in Karnataka. Studies on the disease initiated to identify the causal agent the factors which predispose the plants to epidemics, and control of the disease, revealed that it occurs in epiphytotic form following heavy rains after the crop has been topped, and is more severe in thicker leaves. The primary source of inoculum is the soil, and secondary spread takes place by rainwater splashing from infected to healthy plants. The disease is found predominantly in beedi tobacco and causes severe damage to the crop resulting in economic loss in yield. The causal organism isErwinia chrysanthemi. In vitroevaluation of chemicals showed that streptomycin sulphate + chlorotetra‐cycline (Streptocycline), streptomycin sulphate (Ambystrin) and streptomycin sulphate + oxytetracycline (Paushamycin) were effective in control of the bacterial disease.
点击下载:
PDF (445KB)
返 回