STUDIES ON TOLERANCE AND SENSITIVITY OF NEMATODE-TRAPPING FUNGUS Drechslerella brochopaga TO COMMON FUNGICIDES
Loading...
Date
2021-10-30
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Banda University of Agriculture & Technology, Banda-210001, Uttar Pradesh, India
Abstract
Drechslerella brochopaga Drechsler, a strangulating nematode-trapping fungus was
studies for their adoptability in soil and their tolerance against some common fungicides.
D.brochopaga was isolated from horticultural soil of Baberu, Banda. The fungus was
characterized and identified by the use of relevant literature. The fungus was found to
effectively capture and kill the 96.4 per cent second stage juveniles of Meloidogyne incognita
by its three celled constricting ring produced on hyphae within 3 days. The study of adaptability
of D. brochopaga in various agricultural and horticulture soil of Banda revealed that this fungus
is frequenlty formed conidial trap in vicinity to soil and parastize nematodes. The study of the
tolerance of conidia of D. brochopaga with soil amended with different concentrated of
common fungicide indicate that this fungus is highly toxic to chlorothallonil was various range
of tolerance/sensitivity with common fungicide. Conidia of D. brochopaga were found most
sensitive to chlorothalonil and propineb at 10 µl ai kg-1 concentration followed by
carbendazim, mencozeb, copper oxychloride, copper sulphate, thiram which inhibited the
conidial trap formation at 25 mg ai kg-1 ppm. Tebuconazole inhibited completely inhibited
the fungus at 100 µl ai kg-1 whereas Metalaxyl and Sulphur completely inhibited the fungus at
300 mg ai kg-1
. D. brochopaga showed tolerance to propiconazole up to 300 mg ai kg-1
but the
fungus was completely inhibited at 400 mg ai kg-1
.The result of the present study indicate that
D. brochopaga is sensitive to most of the fungicides tested under the present study. The fungus
showed tolerance to Metalaxyl, propiconazole and Sulphur below 200 mg/µl ai kg-1
concentration of in soil.
Description
Keywords
Citation
Hariom Dwivedi 2021. STUDIES ON TOLERANCE AND SENSITIVITY OF NEMATODE-TRAPPING FUNGUS Drechslerella brochopaga TO COMMON FUNGICIDES. M.Sc. Thesis. 49p.