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Studies on diversity, status of bee flora of apis mellifera L. and estimation of insecticide residue in honey

KrishiKosh

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Title Studies on diversity, status of bee flora of apis mellifera L. and estimation of insecticide residue in honey
 
Creator Nadaf, Hasansab A.
 
Contributor Yadav, G.S.
 
Subject Honey, Sampling, Pesticides, Biological phenomena, Planting, Insecticides, Toxicity, Area, Developmental stages, Imports
 
Description The investigations were carried out to identify the pollen and surplus honey sources availed by A. mellifera through reference pollen slides. The analysis of pollen loads of A. mellifera revealed mean per cent frequency of greater than 45 per cent in most of the loads with 100 per cent for B. juncea in January and 91.2 per cent for Z. jujube in July while, pollen loads of May, September and November were found to be multifloral with no predominant pollen types recorded. The analysis of honey samples recorded mean per cent frequency of predominant pollen types at greater than 45 per cent in all samples except May, September and November which recorded no predominant pollen types. The B. juncea (88.3%) pollen was found in large quantity in January samples. The unifloral pollen from B. juncea, C. sinensis, T. alexandrinum, P. guajava, Z. jujube, cucurbitaceae and Eucalyptus sp. appear as the majority in the months from January and February, March, April, June, July, October and December, respectively representing the plants commonly found in the area. The modified QuEChERS method was validated to determine 22 pesticide residues in the 30 honey samples collected from different apiaries located in/around Hisar using Gas Chromatography. Among the 30 honey samples analyzed, the samples G9 and G10 contained pesticide residues below detectable level whereas the samples A3 and R26 contained seven and six pesticides, respectively. The laboratory studies on the toxicity of new generation insecticides against A. mellifera were carried out where a lowest mortality of 55.53, 77.76 and 88.86 per cent was recorded in the treatments, buprofezin 25SC, chlorantraniliprole 18.5 SC and flubendiamide 20WG at 24 h after the treatment.
 
Date 2016-04-06T10:22:51Z
2016-04-06T10:22:51Z
2013
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/65397
 
Language en
 
Format application/pdf
 
Publisher CCSHAU