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Potential of entomopathogens and neem oil against two emerging insect pests of vegetables

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Title Potential of entomopathogens and neem oil against two emerging insect pests of vegetables
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Creator Jaydeep Halder, Deepak Kushwaha, A B Rai, Arpita Singh and B Singh
 
Subject Bagrada hilaris, Compatibility, Entomopathogens, Epilachna dodecastigma, Median lethal time (LT50), Native strains, Neem oil
 
Description Not Available
Bioefficacy of different entomopathogenic microorganisms, viz Beauveria bassiana, Metarhizium anisopliae,
Lecanicillium lecanii, Bacillus subtilis-2 and botanical, i.e. neem oil were tested alone and their 1:1 combination
with neem oil against two emerging insect pests of vegetables. Among the entomopathogens, M. anisopliae IIVR strain was most promising against hadda beetle (Epilachna dodecastigmata), followed by M. anisopliae commercial formulation, whereas L. lecanii was highly effective against painted bugs (Bagrada hilaris). However, neem oil was the most effective biopesticides against duo insect pests. The per cent mortality changed in time dependent manner and the lowest median lethal time (LT50) for neem oil against E. dodecastigmata and B. hilaris were 45.09 and 102.03 h, respectively. Combinations of these entomopathogenic fungi (EPF) and neem oil (1:1) had lower LT50 values than each of their individual indicating the compatibility among them which was also confirmed through co-toxicity values greater than one in all the cases.
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Date 2021-07-31T17:02:51Z
2021-07-31T17:02:51Z
2017-02
 
Type Research Paper
 
Identifier Halder J, Kushwaha D, Rai A B, Singh A and Singh B. 2017. Potential of entomopathogens and neem oil against two emerging insect pests of vegetables. Indian Journal of Agricultural Sciences. 87(2):220-224.
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http://krishi.icar.gov.in/jspui/handle/123456789/51801
 
Language English
 
Relation Not Available;
 
Publisher Indian Council of Agricultural Research