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Predatory behaviour of Fictor composticola Khan et al. and its potential for the management of nematode pests of button mushroom

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Title Predatory behaviour of Fictor composticola Khan et al. and its potential for the management of nematode pests of button mushroom
 
Creator Keshari, Nishi
 
Contributor Kanwar, R. S.
 
Subject Fictor composticola, Prey range, Predation behaviour, Prey preference, Survival, Prey density, Bio-management, Mycophagous nematodes, Microbivorous nematodes, Spent mushroom compost, Button mushroom
 
Description Investigations were carried out on prey range, prey preference, strike rate, predation behaviour, effect
of prey density on predation rate of Fictor composticola, survival of F. composticola in agar plates and
spent mushroom compost and management of mycophagous nematode, Aphelenchoides swarupi
(mushroom pest) in button mushroom.
F. composticola preyed upon all the twelve nematode species tested including fungal feeders
(Aphelenchus avenae, A. swarupi and Ditylenchus myceliophagus), microbivorous (Panagrolaimus sp.,
Bursilla sp., Tylencholaimus sp., Rhabdolaimus sp. and Aerolaimid), plant parasitic (Heterodera
avenae males and Hoplolaimus sp.) and predatory nematodes (Aporcelaimium sp. and Nygolaimus
harishi). F. composticola preferred mycophagous nematodes over microbivorous nematodes and D.
myceliophagus among the fungal feeders. Female F. composticola was more voracious feeders than
males. Strike rate of female F. composticola was 78.6 and 48.2 in males. The myceliophagous
nematodes have more prey susceptibility than the microbivorous nematodes. The feeding duration of
female and male F. composticola was 8 min 31 sec and 4 min 11 sec, respectively. It preferred
juveniles over adults and posterior part of preys over other parts. Predation efficiency of F.
composticola increased with increase in prey density but, the per cent consumption was minimum at
highest prey density level (1600 per plate). The optimum per cent prey consumption was at 200 and
400 prey density levels. F. composticola could survive in agar plates up to two months. In spent
mushroom compost, its survival was better in polythene bags than in cloth bags (75 days in polythene
bags v/s 60 days in cloth bags). In compost heap stored in open, F. composticola survived in active
stage during off-season (April to September). No anhydrobiotic survival was seen under moisture stress
conditions. In mushroom bags, population of A. swarupi was found minimum when F. composticola
was inoculated at spawning.
 
Date 2016-08-19T11:35:57Z
2016-08-19T11:35:57Z
2016
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/72959
 
Language en
 
Format application/pdf
 
Publisher CCSHAU