Influence of some Pesticides on Entomopathogenic Fungus Lecanicillium (=Verticillium) lecanii (Zimm.) ZARE & GAMS

An in vitro study was conducted to determine the interaction effect of ten pesticides tested at field recommended dose on conidial germination, vegetative growth and sporulation of Lecanicillium lecanii(ZIMM.) ZARE&GAMS. Compatibility of L. lecanii to different pesticides was found to be varied....

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Autores principales:	A Krishnamoorthy, P N Ganga Visalakshi
Formato:	article
Lenguaje:	EN
Publicado:	Society for Promotion of Horticulture - Indian Institute of Horticultural Research 2007
Materias:	botanicals pesticides lecanicillium lecanii Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/8ce288c6bdf44ba4bf165de2c13e1d3d
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spelling	oai:doaj.org-article:8ce288c6bdf44ba4bf165de2c13e1d3d2021-12-02T12:06:39ZInfluence of some Pesticides on Entomopathogenic Fungus Lecanicillium (=Verticillium) lecanii (Zimm.) ZARE & GAMS0973-354X2582-4899https://doaj.org/article/8ce288c6bdf44ba4bf165de2c13e1d3d2007-06-01T00:00:00Zhttps://jhs.iihr.res.in/index.php/jhs/article/view/639https://doaj.org/toc/0973-354Xhttps://doaj.org/toc/2582-4899An in vitro study was conducted to determine the interaction effect of ten pesticides tested at field recommended dose on conidial germination, vegetative growth and sporulation of Lecanicillium lecanii(ZIMM.) ZARE&GAMS. Compatibility of L. lecanii to different pesticides was found to be varied. Conidial germination was 99.3 and 85.7% in Pongamia oil and acephate, whereas, it was totally inhibited by the presence of chlorothalonil, iprodion + carbendazim, carbendazim and thiophanate methyl indicating that these pesticides were highly toxic. Dinocap recorded as moderately toxic while endosulfan, abamectin and ethion were least toxic based to the germination of conidia. So also Iprodion + carbendazim did not and carbendazim allow L. lecanii to put forth mycelium growth in their presence. Thiophanate methyl, Pongamia oil, acephate, endosulfan, ethion and chlorothalonil were observed to be innocuous pesticides registering growth of mycelium upto 2.33, 2.23, 2.23, 2.03, 2.03 and 2.00 cm dia., respectively, from 0.6 cm dia. held in the center of Petri plate on 14th day after treatment. As far as sporulation is concerned, Pongamia oil alone recorded the maximum yield of 47.2x106 conidia/ml followed by 18x106 conidia/ml, in chlorothalonil as against 20x106 conidia/ml in control, which means that the pongamia oil exhibited synergistic effect on L. lecanii, yielding more conidial spores. Thus, based on in vitro interaction study, pongamia oil alone was found to be safe to the entamopathogenic fungus L. lecanii in nature and iprodion + carbendazim and carbendazim were found to be highly toxic.A KrishnamoorthyP N Ganga VisalakshiSociety for Promotion of Horticulture - Indian Institute of Horticultural Researcharticlebotanicalspesticideslecanicillium lecaniiPlant cultureSB1-1110ENJournal of Horticultural Sciences, Vol 2, Iss 1, Pp 53-57 (2007)
institution	DOAJ
collection	DOAJ
language	EN
topic	botanicals pesticides lecanicillium lecanii Plant culture SB1-1110
spellingShingle	botanicals pesticides lecanicillium lecanii Plant culture SB1-1110 A Krishnamoorthy P N Ganga Visalakshi Influence of some Pesticides on Entomopathogenic Fungus Lecanicillium (=Verticillium) lecanii (Zimm.) ZARE & GAMS
description	An in vitro study was conducted to determine the interaction effect of ten pesticides tested at field recommended dose on conidial germination, vegetative growth and sporulation of Lecanicillium lecanii(ZIMM.) ZARE&GAMS. Compatibility of L. lecanii to different pesticides was found to be varied. Conidial germination was 99.3 and 85.7% in Pongamia oil and acephate, whereas, it was totally inhibited by the presence of chlorothalonil, iprodion + carbendazim, carbendazim and thiophanate methyl indicating that these pesticides were highly toxic. Dinocap recorded as moderately toxic while endosulfan, abamectin and ethion were least toxic based to the germination of conidia. So also Iprodion + carbendazim did not and carbendazim allow L. lecanii to put forth mycelium growth in their presence. Thiophanate methyl, Pongamia oil, acephate, endosulfan, ethion and chlorothalonil were observed to be innocuous pesticides registering growth of mycelium upto 2.33, 2.23, 2.23, 2.03, 2.03 and 2.00 cm dia., respectively, from 0.6 cm dia. held in the center of Petri plate on 14th day after treatment. As far as sporulation is concerned, Pongamia oil alone recorded the maximum yield of 47.2x106 conidia/ml followed by 18x106 conidia/ml, in chlorothalonil as against 20x106 conidia/ml in control, which means that the pongamia oil exhibited synergistic effect on L. lecanii, yielding more conidial spores. Thus, based on in vitro interaction study, pongamia oil alone was found to be safe to the entamopathogenic fungus L. lecanii in nature and iprodion + carbendazim and carbendazim were found to be highly toxic.
format	article
author	A Krishnamoorthy P N Ganga Visalakshi
author_facet	A Krishnamoorthy P N Ganga Visalakshi
author_sort	A Krishnamoorthy
title	Influence of some Pesticides on Entomopathogenic Fungus Lecanicillium (=Verticillium) lecanii (Zimm.) ZARE & GAMS
title_short	Influence of some Pesticides on Entomopathogenic Fungus Lecanicillium (=Verticillium) lecanii (Zimm.) ZARE & GAMS
title_full	Influence of some Pesticides on Entomopathogenic Fungus Lecanicillium (=Verticillium) lecanii (Zimm.) ZARE & GAMS
title_fullStr	Influence of some Pesticides on Entomopathogenic Fungus Lecanicillium (=Verticillium) lecanii (Zimm.) ZARE & GAMS
title_full_unstemmed	Influence of some Pesticides on Entomopathogenic Fungus Lecanicillium (=Verticillium) lecanii (Zimm.) ZARE & GAMS
title_sort	influence of some pesticides on entomopathogenic fungus lecanicillium (=verticillium) lecanii (zimm.) zare & gams
publisher	Society for Promotion of Horticulture - Indian Institute of Horticultural Research
publishDate	2007
url	https://doaj.org/article/8ce288c6bdf44ba4bf165de2c13e1d3d
work_keys_str_mv	AT akrishnamoorthy influenceofsomepesticidesonentomopathogenicfunguslecanicilliumverticilliumlecaniizimmzaregams AT pngangavisalakshi influenceofsomepesticidesonentomopathogenicfunguslecanicilliumverticilliumlecaniizimmzaregams
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Influence of some Pesticides on Entomopathogenic Fungus Lecanicillium (=Verticillium) lecanii (Zimm.) ZARE & GAMS

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