STUDIES ON RESIDUAL TOXICITY EFFECT OF PESTICIDES AND NITRATE ON PERFORMANCE OF MULBERRY SILKWORM
Loading...
Date
2015-07-10
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU
Abstract
THESIS ABSTRACT
2014-2015 The to rearing study was the carried out at Depaiiment of Sericulture GKVK, UAS, Bangalore during
"Residual toxicity effect of pesticides and nitrate on performance of
mulberry silkworm". Fifteen samples of soil and mulberry leaves were analyzed for pesticide
this residue. only one Among sample them (F4K) only nine contained samples residue had of detectable cypennetlu·in level of (0.55ppm) pesticide 11bove residue MRL(Oin soil, .Olout ppm).of
Similarly in Chlorantraniliprole(0.29ppm) mulbeITy on leaves par only with(0.29ppm). one sample Highest soil (FI2C) nitrate contained residue at 30cm residue depthof
was recorded recorded in in F9C(71.98ppm). FIK(357.14ppm). Larval mmiality Highest was nitrate highest residue in silkwonns content in fed with bottom leaves leaves 10DAS[Iwere instar Chlorantraniliprole (96%), II instar(96%), sprayed III mulbeITy instar leaves (90.33%), in first IV rearing instar and (21 in %) and second V rearing I instar(30.67% instar(97%),after
II Fomih instar(96%), moult III duration instar was (92.33%), recorded IV maximum in instar(22.67%) silkwo1ms and V reared on instar(32.67%) leaves IODAS respectively].(26.53h fed and with 24.53h)) 10DAS in first [IV and instar(l26.79h) second rearing. and V instar Maximum (24Ih)] instar and duration second was rearing recorded [IV in instar(l24.95h)silkwmms and filament V length instar(22lh)]. and denier Larval; was cocoon least in shell 10DAS and filament (19.57g, weight, 1.23g, ERR, 0.20g, cocoon 0.10g, yield, 26.33%, shell 29.23g,ratio,in 10DAS 14.89%, (17.57g, 599.58m 1.21g, and 2.09, 0.19g, 0.09g, resectively). 24.67%, In 28.30g, second 14.83%, rearing these 596.39m and parameters 2.08, were respectively).least
Description
Keywords
null