scholarly journals Assessment of organochlorine pesticides in different seaweed species of Thoothukudi coast, Tamil Nadu, South India

2021 ◽  
Vol 68 (2) ◽  
pp. 148
Author(s):  
S. Sundhar ◽  
Robinson Jeyashakila ◽  
S. Aanand ◽  
R. Shalini
Keyword(s):  
Organochlorine Pesticides ◽  
Tamil Nadu ◽  
South India ◽  
Seaweed Species

scholarly journals Lecanicillium lecanii (Zimmermann) Zare & Gams, as an efficient biocontrol agent of tea thrips, Scirtothrips bispinosus Bagnall (Thysanoptera: Thripidae)

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Mariappan Sankara Rama Subramaniam ◽  
Azariah Babu ◽  
Bhabesh Deka
Keyword(s):  
Tamil Nadu ◽  
South India ◽  
Biocontrol Agent ◽  
Uv Light ◽  
Biological Control Agents ◽  
Optimum Conditions ◽  
Lecanicillium Lecanii ◽  
Wettable Powder ◽  
Label Claim ◽  
Yeast Powder

Abstract Background Continuous and non-judicial application of synthetic insecticides to control the tea thrips, Scirtothrips bispinosus (Bagnall), one of the major tea pests in South India has led to certain undesirable issues in the ecosystem besides the presence of the pesticide residues in manufactured tea. Biological control agents are of immense importance in tea cultivation. The present study was designed to isolate Lecanicillium lecanii (Zimmermann) Zare & Gama from the field-collected cadavers of the insects/mites infected by fungi of tea growing areas of Anamallais (Tamil Nadu, South India), and to evaluate their field bio-efficacy against the tea thrips. Results Lecanicillium lecanii isolated from the tea ecosystem had been formulated into a wettable powder (WP) formulation and evaluated against tea thrips under both laboratory and field conditions. Among the several media evaluated, the PDAY (Potato Dextrose Agar + 1% Yeast powder) was found to be the best suitable medium for the growth and germination of spores. Optimum conditions for the growth of L. lecanii were found in PDAY medium at the pH 6-7, temperature 25-30°C and 90-95% RH. Exposure to UV light for more than 30 min significantly inhibited the growth of the fungus. Lecanicillium lecanii at (1 × 107 spore/ha) was found significantly effective against thrips. Fungal development index (FDI) of L. lecanii + jaggery significantly differed than other treatments. Lecanicillium lecanii at 1500g (1×107 conidia/ml) mixed in 400 l of water was effective against the tea thrips. Addition of equal amount of jaggery with L. lecanii wettable powder in the tank mixture could increase the efficacy of the mycopesticide against tea thrips. Conclusion The powder formulation of L. lecanii was found safer to natural enemies present in the tea ecosystem. After fulfilling the requirements for its registration and label claim on tea, this strain of L. lecanii could be commercialized for the benefit of the tea industry for the management of tea thrips in an eco-friendly manner.

Representing Disasters and Long-term Recovery – Insights from Tamil Nadu

2021 ◽  
Author(s):  
Chandni Singh ◽  
Mark Tebboth ◽  
Jasmitha Arvind ◽  
Yashodara Udupa
Keyword(s):  
Tamil Nadu ◽  
Shape Recovery ◽  
South India ◽  
State Policies ◽  
Indian Ocean Tsunami ◽  
Recovery Processes ◽  
Disaster Impacts ◽  
Chennai City ◽  
Post Disaster

This study focuses on disaster impacts and recovery in Tamil Nadu, drawing on insights from Chennai city and Nagapattinam district. The research is part of a larger three-year project called “Recovery with Dignity”, which examines the experiences of recovery in post-disaster situations across three states in India – Odisha, Tamil Nadu, and Kerala – and explores how recovery processes represent vulnerable populations. In this report, we focus on three key disasters in Tamil Nadu: the 2004 Indian Ocean Tsunami, the 2015 South India flood, and the 2018 Cyclone Gaja. Through these events, we examine how the ways disasters and their losses are represented shape recovery outcomes. The study uses a range of data, from a review of state policies in Tamil Nadu (2005-2019), an analysis of media articles published in English and Tamil (2004-2019), to interviews with disaster-affected people and secondary stakeholders. The findings indicate that disaster responses and outcomes are highly differentiated based on how disaster-affected people and their needs and losses are represented. To enable inclusive recovery, it is necessary to recognising the heterogenous nature of disaster impacts and acknowledge different ideas of what recovery means.

scholarly journals Occurrence of a Pterygoplichthys disjunctivus (Weber, 1991) population in Cauvery River System, Tamil Nadu, South India

2016 ◽  
Vol 8 (6) ◽  
pp. 62-66 ◽  
Author(s):  
Meena Moorthy ◽  
Sundaramanickam Arumugam ◽  
Thankappan Ajith Kumar Thipramalai
Keyword(s):  
Tamil Nadu ◽  
South India ◽  
River System ◽  
Cauvery River

scholarly journals Reproductive pattern, perinatal mortality, and sex preference in rural Tamil Nadu, South India: community based, cross sectional study

BMJ ◽  
1997 ◽  
Vol 314 (7093) ◽  
pp. 1521-1521 ◽  
Author(s):  
B. B. Nielsen ◽  
J. Liljestrand ◽  
M. Hedegaard ◽  
S. H. Thilsted ◽  
A. Joseph
Keyword(s):  
Perinatal Mortality ◽  
Tamil Nadu ◽  
South India ◽  
Cross Sectional Study ◽  
Reproductive Pattern ◽  
Sectional Study ◽  
Community Based ◽  
Cross Sectional ◽  
Sex Preference

scholarly journals A Study on Jainism History, Philosophy and Traditions in Tamilnadu

2021 ◽  
Vol 8 (4) ◽  
pp. 75-79
Author(s):  
M Rajeshwari ◽  
A Amirthavalli
Keyword(s):  
Tamil Nadu ◽  
South India ◽  
Huge Amount ◽  
Indian History ◽  
South Indian ◽  
Way Of Thinking ◽  
Made In ◽  
The Way

In Tamil Nadu Hinduism and Buddhism, Jainism is one of the three oldest Indian strict conventions still in presence and a necessary piece of South indian strict conviction and practice. While frequently utilizing ideas imparted to Hinduism and Buddhism, the consequence of a typical social and phonetic foundation, the Jain convention should be viewed as a free marvel as opposed to as a Hindu order or a Buddhist blasphemy, as some previous Western researchers accepted. In South India, Jainism is minimal in overflow of a name. Indeed, even genuine understudies of religion in India gave little consideration to it. In a populace of almost 60 crores of individuals, Jainas may establish almost nearly 3 million individuals. Jainism is the religion of the Jains who follow the way, lectured and rehearsed by the Jinas. It is a fully evolved and grounded religion and social framework that rose up out of 6 century BC .The trademark highlight of this religion is its case to all inclusiveness which it holds essentially contrary to Brahmanism. It very well may be said that throughout the previous 2500 years the Jains have contributed such a huge amount to each circle of life of Indian individuals both as a religion and a way of thinking. They contributed a lot to the regions of culture, language, exchange and agribusiness, or all in all the Jains opened up another period of human thoughts and musings. In Indian History, endeavors were made to contemplate Jainism as a religion and its commitments yet focus on the Jain movement into Tamil Nadu and its effects are restricted. An endeavor is made in this examination to investigate the recorded geology of the Jain focuses in Tamil Nadu.

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