TY  - BOOK
AU  - Dhanya M K 
AU  - Mary C A (Guide)
TI  - Etiology and Management of Bacterial of Anthurium
U1  - 632.3 
PY  - 2000///
CY  - Vellayani
PB  - Department of Plant Pathology, College of Agriculture
N2  - Bacterial blight incited by Xanthomonas axonopodis pv. dieJJenbachiae 
(Me Culloch and Pirone) Vauterin et al. (1995) is a serious disease of 
anthurium (Anthurium andreanum Linden) causing heavy economic loss to 
growers in Kerala. 
The diseased plants showed both foliar and systemic infections. The 
bacterium was a Gram negative, motile rod. Morphological, physiological and 
biochemical characters of the six isolates were same except for some 
characters like nature and rate of growth, virulence and hydrolysis of starch. 
The bacterium inciting this disease was identified as Xanthomonas 
axonopodis pv. dieffenbachiae based on morphological, physiological and 
biochemical characters coupled with pathogenicity. 
Potato Sucrose Agar was found to be the best medium for growth and 
slime production of the bacterium. 
Dieffenbachia sp., Philodendron oxycardium, Aglaonema robelinii, 
Colocasia esculenta and Syngonium podophyllum were carriers of 
Xanthomonas axonopodis pv. dieJJenbachiae. The pathogen survived In 
infected plant debris kept in soil under glass house conditions and In 
refrigerated conditions for about 45 days and in soil for 60 days. 
Under in vitro evaluation, 100 ppm streptocycline and 0.3 per cent 
captan were most effective in inhibiting the growth of the pathogen. 
 
Under in vivo conditions, the relative efficiency of four ecofriendly 
management practices namely the application of turmeric powder + sodium 
bicarbonate, Pseudomonas jluorescens (proprietary product), neem oil and 
cowdung extract at three different levels were compared with that of spraying 
with 100 ppm streptocycline and 0.3 per cent captan. It was observed that the 
use of 0.15 per cent turmeric powder + sodium bicarbonate (10 : 1 proportion) 
was most effective and the extent of disease control achieved after a schedule 
of five sprayings at one week interval was same as that of 100 ppm 
streptocycline. 


UR  - http://krishikosh.egranth.ac.in/handle/1/5810104150
ER  -