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Mitigating Phytophthora foot rot and slow decline diseases of black pepper through the deployment of bacterial antagonists

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Title Mitigating Phytophthora foot rot and slow decline diseases of black pepper through the deployment of bacterial antagonists
Not Available
 
Creator Bhai. R S
Eapen S J
Kumar A
Aravind R
Pervez R
Varghese, E M
Krishna P B
Sreeja K
 
Subject Black Pepper
Curtobacterium luteum
endophytic bacteria
foot rot
IPM
Phytophthora capsici
Piper nigrum
Radopholus similis
slow decline
 
Description Not Available
Field trial was conducted at ICAR-IISR Experimental Farm, Peruvannamuzhi, Kozhikode district,
Kerala, during 2008-2013 for managing foot rot and slow decline diseases of black pepper using
IPM modules. Planting material of black pepper was produced by raising two node runner
cuttings treated with chemicals/bioagents. A plot having non-living standards in 3 x 2 m runner
was selected. Pits of 50 cm3 were made and buffered with lime and cow dung. Planting was done
with three month old rooted plants where roots were primed with bacterium/chemical. The
experiment was in RCBD with eight treatments viz., Pseudomonas aeruginosa (Bp 35) + Phorate, P.
putida (Bp 25) + Phorate, P. fluorescence (IISR 6) (later identified as P.aeruginosa) + Phorate, Bacillus
megaterium (Bp 17) + Metalaxyl Mz, Curtobacterium luteum (TC10) + Metalaxyl Mz, P. aeruginosa
(IISR 853) + Metalaxyl Mz and Phorate + Metalaxyl Mz (chemical check) and an absolute control
with no treatments. The treatments were imposed at planting in May and subsequent applications
in September and thereafter every year. During the initial two years, plants were maintained
weed free by plastic mulching. Shades and irrigation were provided during summer in the first
two years and thereafter only mulching and irrigation were continued. All the plants were
sprayed with ZnSO4 (0.25%), DAP (0.5%) and MgSO4 (0.25%) during May and September from
second year onwards. For controlling ‘Pollu’ beetle (Longitarsus nigripennis) and anthracnose
(Colletotrichum gloeosporioides), quinalphos (0.075%) + Bordeaux mixture (1%) was sprayed twice
in September and November. Soil biological properties and pathogen population were monitored
regularly. No foot rot incidence due to Phytophthora spp. could be noticed in any of the treatments
till the end of the experimental period. However, nematode infection, manifested as yellowing of
the vines, as well as nematode population showed a gradual increase. Among the treatments, C.
luteum (TC 10) with Metalaxyl Mz showed significant reduction in nematode population with
better growth and yield.
Not Available
 
Date 2021-08-12T05:19:29Z
2021-08-12T05:19:29Z
2017-12-04
 
Type Research Paper
 
Identifier Bhai, Suseela & Varghese, Edna. (2017). Mitigating Phytophthora foot rot and slow decline diseases of black pepper through the deployment of bacterial antagonists. Journal of Spices and Aromatic Crops. 69. 10.25081/josac.2017.v26.i2.874.
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/55167
 
Language English
 
Relation Not Available;
 
Publisher Not Available