Bioefficacy of cow urine based eco-friendly formulations against Spilarctia obliqua (Walker)
Journal Title: Journal of Applied and Natural Science - Year 2014, Vol 6, Issue 2
Abstract
The laboratory studies were conducted to assess the bio-efficacy of cow urine and jatropha seed extracts prepared in water and cow urine (@ 5% and @10% against different stages of Spilarctia obliqua. The cent per- cent mortality of neonate larvae was observed in jatropha seed water extract @10% followed by significantly less larval survival in cow urine @10% (13.35%), jatropha seed cow urine extract @10% (16.64%) in comparison to untreated control (93.32%).Similarly cent per cent larval mortality of 7 days old larvae was observed in JSWE @ 10% and JSCUE @10% with significantly less growth index in JSCUE 5% (0.66), JSWE@5%( 0.67), CU @10% (0.88) and CU @5% ( 0.99) with 2.23 growth index in untreated control. For 14 days old larvae the mean leaf area consumed and larval weight was observed significantly very less in JSWE@10% with cent percent larval mortality followed by JSCUE@10% and cow urine treatments. Similarly, regarding antifeedant activity of eco-friendly formulations according to the calculated preference indices, the strong antifeedant action was showed by JSWE@10% (0.50) followed by JSCUE@10% (0.55)and JSWE@5% (0.60) showed moderately antifeedant action with slight antifeedant action in JSCUE@5% (0.81) and cow urine @10% ( 0.82) and CU@5%(0.85). These observations clearly demonstrated the efficacy of cow urine based eco-friendly formulations against S. obliqua under laboratory conditions which indicated the potential of cow urine based formulations which are eco-friendly, easily prepared and low cost organic approach for sustainable agriculture.
Authors and Affiliations
Geetanjaly , Ruchira Tiwari
Keywords
Related Articles
- EP ID EP137383
- DOI 10.31018/jans.v6i2.517
- Views 93
- Downloads 0
District-wise trend analysis of rainfall pattern in last century (1901-2000) over Gangetic region in West Bengal, India
The aim of the present study was to estimate long-term trend in the amount of rainfall for Gangetic West Bengal (GWB) meteorological sub-division of India and each of the 13 districts under GWB separately. Monthly rainfa...
Varietal performance of garden pea (Pisum sativum var. hortense) under Terai zone of West Bengal
The present study was conducted during the rabi season of the years of 2014-15 and 2015-16 at the Instructional Farm of Uttar Banga Krishi Vishwavidyalaya, Pundibari, Cooch Behar to evaluate the performance of twelve ga...
A study on carbon sequestration in natural forests of India
Among the global common concerns, climate change has been identified as the most important environmental challenge faced by human beings. Emission of carbon dioxide, methane, nitrous oxide, chlorofluorocarbons and hydr...
Statistical modeling of wet and dry spell frequencies over North-East India
In this paper an attempt has been made to develop a discrete precipitation model for the daily series of precipitation occurrences over North East India. The point of approach is to model the duration of consecutive dry...
Effects of different doses of nitrogen treatments on isoprene emission from Ficus glomerata
In the present investigation on the effect of nitrogen treatments on emission of isoprene from Ficus glomerata has been evaluated. Four sets of plants were treated with following four doses of nitrogen in the form of amm...