Kathirvelu Baskar

Kathirvelu Baskar
Loyola College | Loyola College, Chennai · Entomology Research Institute (ERI)

Ph.D

About

110
Publications
15,306
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
1,147
Citations
Additional affiliations
February 2012 - present
Lab LifeScience Intelligentsia
Position
  • Scientist (Entomologist)
June 2011 - November 2011
Vivekananda College - A Gurukula Institute of Life Training
Position
  • Professor (Assistant)
June 2010 - June 2011
Loyola College,
Position
  • PostDoc Position
Education
November 2011 - December 2011
Indian Institute of Information Technology Allahabad
Field of study
  • An interaction program of Nobel Laureates and eminent National and International Academicians, Scientists, Technologists and Industrialists with selected students, young teachers & researchers to inspire and motivate them towards careers in Basic Sciences
March 2009 - March 2009
University of Madras
Field of study
  • Fruit fly Research Methodology Workshop
December 2008 - December 2008
Centre of Advanced Studies in Entomology, Tamil Nadu Agricultural University Coimbatore, sponsored by ICAR
Field of study
  • Recent trends in Entomological Research

Publications

Publications (110)
Article
Full-text available
Tribolium castaneum is one of the major pests of stored grains which causes extensive damages. To control this insect pest many synthetic chemical pesticides are used. However, continuous usage of synthetic fumigants causes pest resurgence, toxic residues, genetic resistance in pests, environmental contamination and health hazards etc., To avert th...
Article
In rainfed situation soil erosion, low plant nutrients availability and soil moisture stress during cropping season are among the major limitations to high crop production and sustainable land management in a rainfed Semi-Arid Tropics (SAT) in India. A field experiment was conducted to study the effect of land configuration practices and fertilizer...
Article
The soil fertility status and mapping their spatial distribution play a crucial role for sustainable planning of particular area. Thus, a study was conducted to assess the soil fertility status of the Agricultural Research Station, Kovilpatti, Thoothukudi district. The farm is situated 8° 48’ and 9° 20’ North latitude and 78° 25’ east longitude at...
Article
Full-text available
In rainfed situation soil erosion, low plant nutrients availability and soil moisture stress during cropping season are among the major limitations to high crop production and sustainable land management in a rainfed Semi-Arid Tropics (SAT) in India. A field experiment was conducted to study the effect of land configuration practices and fertilizer...
Article
Full-text available
The soil fertility status and mapping their spatial distribution play a crucial role for sustainable planning of particular area. Thus, a study was conducted to assess the soil fertility status of the Agricultural Research Station, Kovilpatti, Thoothukudi district. The farm is situated 8° 48' and 9° 20' North latitude and 78° 25' east longitude at...
Article
Background: Poor soil fertility is a yield limiting factor in cotton production for realizing higher seed cotton yield. Chemical fertilizers are an important input to get higher crop productivity, but over reliance on chemical fertilizers is associated with declines in some soil properties and crop yields over time and causes serious problems, such...
Article
Full-text available
Field experiments were carried out during rabi season of 2017-18, 2018-19 and 2019-2020, at Agricultural Research Station, Kovilpatti, to evaluate the suitability and economic viability of crop geometry and foliar nutrition on growth and yield of green gram under rainfed conditions. The experiment was laid out in split plot design with three replic...
Article
Full-text available
In order to evaluate the impact of Bacillus sonorensis on propagation of Abelmoschus esculentus and its antimicrobial activity was investigated. In the present study, A. esculentus was cultivated in B. sonorensis inoculated soil and also assessed the morphological as well as biochemical parameters of crops. The culture inoculum of B. sonorensis inf...
Article
A field experiment was conducted to study the influence of foliar application of plant nutrition on yield attributes, yield and nutrient uptake of cotton (KC 3) at the Agricultural Research Station, Tamil Nadu Agricultural University, Kovilpatti during rabi season 2013–16. The experiment was laid out in a Randomized Block Design (RBD) comprising ni...
Article
Full-text available
Marine microbes are potential source for novel metabolites. They are efficient in producing these metabolites utilizing agrowastes. Protease is one of the enzymes which find wide industrial applications. In the present study protease producing bacteria was isolated from marine sediments and the organism was identified as Bacillus halodurans. The or...
Article
Mosquitoes are medically important insects worldwide. They serve as a primary vector for transmitting several major diseases like dengue and chikungunya, chiefly spread through Aedes aegypti, a prominent mosquito vector. The present study focused on evaluating the inhibitory effect of natural alkaloids on the acetylcholinesterase present in Ae. aeg...
Article
Full-text available
The intention of the study was evaluated for purification and characterization of exopolysaccharides from Lactobacillus paracasei; was isolated from homemade Sauerkraut sample collected from Sivakasi, Tamil Nadu, India, confirmed by biochemical and gene sequencing (16S rRNA). The purification and characterization of exopolysaccharides from candidat...
Preprint
Full-text available
Essential oil (EO) was extracted from Callistemon citrinus leaves by hydro-distillation. The extracted oil was analysed by GC and Mass Spectroscopy. Analysis report showed that the major constituent of the essential oil was eucalyptol (40.44%). The EO of C . citrinus exhibited 100% fumigation toxicity (adult mortality) against adult and 95.8% larvi...
Article
Full-text available
In this study, red LED and urea used as light and nitrogen sources, respectively, for the cultivation of Spirulina to enhance the fluorescence property and purity of phycocyanin. Besides, there is a high concentration of phycocyanin leached out from red light (RL) grown cells than white light (WL) without cell disruption. This type of cultivation r...
Article
Full-text available
The present work describes purification and characterization of an extracellular cellulase from a newly isolated cellulolytic bacterial strain Bacillus pumilus EWBCM1. The candidate strain was tested for its abilities to hydrolyze the structural polysaccharides through the depolymerising activities of carboxymethylcellulase. The purification of cel...
Article
Full-text available
The cotton bollworm Helicoverpa armigera is a serious pest of many economically important crops. Since this pest has become resistant to the conventional synthetic insecticides, newer compounds and formulations are being developed against this insect pest. Many natural compounds isolated from the plants were tested against this pest. Among them Hyp...
Article
Full-text available
Essential oil (EO), from Clausena anisata, was evaluated for their efficacy (fumigant and repellent activities) against Sitophilus oryzae. Result revealed that C. anisata showed 82% fumigant toxicity (insect mortality) at 160 μL/L concentration after 24h observation period. C. anisata exhibited LC50 value of 17.84 μL/L concentration for fumigant to...
Article
In the recent past, many agrochemicals have been used to control pests, but many of these fail due to the development of resistance. Many researchers, therefore, concentrate on developing new pesticide formulations from natural resources (plants/microorganism). In the present study, different extracts from Catharanthus roseus (Madagascar periwinkle...
Article
Full-text available
Biological soil crusts (BSC) (Cyanobacteria) play an important role in the soil nitrogen fixation and soil stabilization. However, limited researches were carried out about the diversity and distribution of Bio crust in sacred forests. The study aimsto identify the distribution of cyanobacteria in biological soil crusts from different sacred groves...
Article
Full-text available
Balanced nutrition is considered as one of the basic needs to achieve the potential yield. Sulphur is one of the major plant nutrients for that is deficient in most of the Indian soils. Sulphur is now recognized as the fourth major plant nutrient after N, P and K and is also an integral part of the balanced fertilization and nutrition for oilseed c...
Article
To evaluate the bioefficacy of crude extract and fractions from the leaves of Couroupita guianensis Aubl. against second and fourth instar larvae of Culex quinquefasciatus Say and Aedes aegypti L. The phytochemical parameters of hexane extract derived fraction were analyzed. Chromatographically enriched fractions from hexane extract were eluted by...
Article
Full-text available
The medicinal plant Avicennia marina was evaluated for their immunostimulatory activity on Pseudomonas fluorescens infested fish, Labeo rohita. The fish was dosed intraperitoneally at 10, 20 and 30 ppm concentrations of ethanolic leaves extract of A. marina and control. After 10, 20 and 30 days of treatments, the immunological, hematological and se...
Conference Paper
Full-text available
The method of exposure plays an important role in evaluating the toxicity of chemicals. The present study was performed as per the test guideline OECD 222. The guideline suggests analytical measurement of soil, while testing chemicals which are volatile, unstable, and readily degradable, but information on analytical verification of test chemical,...
Article
Full-text available
The present study, deal about the antibiosis activity of soil bacteria, isolated from 10 different locations of rhizosphere and diverse cultivation at Kochi, Kerala, India. The bacteria were isolated by standard serial dilution plate techniques. Morphological characterization of the isolate was done by Gram's staining and found that all of them gra...
Article
Industrial wastes are capable of polluting the soil and groundwater. The tanning industry is considered as a potential environmental polluting agent through out the world. Chromium (Cr), a toxic heavy metal, is a major constituent of tannery waste, and its accumulation in soil and water causes serious environmental issues of increasing public conce...
Article
Full-text available
Many synthesized semiconductor QDs materials are formed using trioctylphosphine oxide (TOPO) but it requires high temperature, is very expensive and is also hydrophobic. Our study deals with selective syntheses of CdSe and core–shell CdSe/ZnS quantum dots (QDs) in aqueous solution by a simple heating and refluxing method. It is more hydrophilic, ne...
Article
Full-text available
Many commercially available agro and household chemicals are used as pesticides, repellents, and growth inhibitors against insect pests. The repeated uses of these chemicals against insect pests have caused the development of resistance in them; they also cause ill effects on nontarget organisms. The present study was aimed to evaluate the antifeed...
Article
Full-text available
Currently, many plant extracts have been employed to green synthesize metal nanoparticles toxic to insect pests and vectors. However, scarce efforts focused on the main molecules responsible of reduction and stabilization processes. In this study, we assessed the larvicidal activity of hexane, dichloromethane (DCM), acetone and aqueous extracts of...
Article
The development of eco-friendly mosquito control tools is of key importance for public health worldwide. In the present study, the essential oil [EO] from Atalantia monophylla essential oil was tested for larvicidal and repellent activity against three species of mosquitoes, Aedes aegypti, Anopheles stephensi and Culex quinquefasciatus. The EO show...
Article
Natural pesticides show a number of advantages if compared to synthetic pesticides, since they are cheap, biodegradable, and minimal harmful to humans and animals, livestock and wildlife. Furthermore, natural biopesticides are easily accessible by poor marginalized rural populations in developing countries. Here, crude extracts and fractions of Cae...
Article
Full-text available
The hydrodistillated essential oil of Atalantia monophylla was subjected to GC-MS. Forty compounds were presented in the essential oil. Eugenol (19.76 %), sabinene (19.57 %), 1,2-dimethoxy-4-(2-methoxyethenyl) benzene (9.84 %), beta-asarone (7.02 %) and methyl eugenol (5.52 %) were found the predominant compounds. The oil was tested for fumigant to...
Article
The present investigation was aimed to explore the antifeedant activity of hexane, dichloromethane (DCM), acetone and aqueous extracts of leaves of Catharanthus roseus against the shoot and fruit borer of bhendi, Earias vittella. Among the different crude extracts tested, at 5 % concentration of DCM extract revealed significant antifeedant activity...
Article
Full-text available
The endophytic fungus is have rich source of secondary metabolites which act as biological active agent in the higher plants. The fungal derivatives play vital part in human life and their compounds are the source of drug for cancer, microbial and viral diseases. The natural compounds from the endophytes acts as growth inhibitor of plant pathogenic...
Article
Natural enemies of insect pests in vegetable crops (brinjal, okra and tomato) were recorded and their diversity was studied in Kancheepuram and Tiruvallur Districts, Tamil Nadu. Natural enemies were collected by pitfall traps, sweeping nets and by hand picking from January 2011 to December 2013 twice in a month. Totally 129 species of predatory and...
Article
Mosquitoes are responsible for the transmission of dreadful diseases such as Malaria, Dengue, Chikungunya, Lymphatic filariasis. An ecofriendly approaches made to control mosquito larvae by using plant extracts is alternative to synthetic pesticides for avoid the environmental hazards. In order to achieve control, knowledge about the interactions b...
Article
Full-text available
Newly developed Phytopesticidal formulations from pongam and neem oils were evaluated for their feeding deterrent activity using leaf disc choice and no-choice methods, and genotoxic study using comet assay against Helicoverpa armigera at different concentrations of 5, 10, 15, and 20 ppm. Among various phytopesticidal formulations, neem and pongam...
Article
Full-text available
Objective: To investigate the antifeedant and larvicidal activities of Acalypha fruticosa Forssk. (Euphorbiaceae) (A. fruticosa) leaf extracts. Methods: Efficacy of various organic solvent extracts of dichloromethane, acetone, dimethyl sulfoxide and aqueous extracts of leaves of A. fruticosa were evaluated for their feeding inhibition and larvicid...
Article
Full-text available
Flindersine, an alkaloid isolated from Toddalia asiatica, was evaluated for their antifeedant, larvicidal and growth inhibitory activities against Helicoverpa armigera, Spodoptera litura and larvicidal activity against vector mosquitoes Anopheles stephensi and Culex quinquefasciatus. For this, leaf disc no choice method was used for agricultural pe...
Article
Antifeedant, larvicidal and growth inhibitory activities of 12 fractions from chloroform extract of Clerodendrum phlomidis Linn. F. were evaluated against Earias vittella. Among the fractions, fraction 5 showed promising antifeedant activity of 86.94% at 1000 ppm followed by 500 ppm concentration with the least LC50 and LC90 values of 120.15 and 10...
Article
Full-text available
Larvicidal activity of pectolinaringenin from Clerodendrum phlomidis was evaluated against Anopheles stephensi and antifeedant, larvicidal and growth inhibitory activities were evaluated against Earias vittella. Pectolinaringenin exhibited larvicidal activity of 100 and 98.24% against 2nd and 4th instar larvae of Anopheles stephensi at 5ppm concent...
Article
Full-text available
Twelve fractions from chloroform extract of Clerodendrum phlomidis and 5,7-dihydroxy- 4',6-dimethoxy-flavone (pectolinaringenin) were evaluated against Helicoverpa armigera. Maximum antifeedant (89.41%), larvicidal (83.77%) and ovicidal (69.25%) activities were observed in fraction 5. The least LC50 value for antifeedant (178.09 ppm) and larvicidal...
Article
Laboratory experiments were conducted to find out the efficacy of different crude extracts and fractions of Couroupita guianensis (Lecythidaceae) against Spodoptera litura (Fabricius). Results revealed that hexane, chloroform and ethyl acetate extracts of C. guianensis showed larvicidal and pupicidal activities against S. litura. Maximum larvicidal...
Article
Background Friedelin (triterpenoid) isolated from hexane extract of Azima tetracantha leaves was evaluated for its antifeedant, larvicidal and pupicidal activities against Helicoverpa armigera and Spodoptera litura at 125, 250, 500 and 1000 ppm concentration. ResultsFriedelin exhibited antifeedant (84.57 & 75.28%), larvicidal (72.88 & 66%) and pupi...
Article
In the past five decades, agricultural pests are controlled by synthetic pesticides which caused ill effects on non-target organisms and environment; also insect pests developed resistance and minor pests became major pests. By keeping this in mind, the present study was selected. Antifeedant and larvicidal activities and growth inhibitory effects...
Article
Pectolinaringenin was isolated from chloroform extract of Clerodendrum phlomidis L. and was evaluated at 12.5 to 100 ppm concentrations for its effects on total protein, esterase and glutathione S-transferase (GST) activities of Earias vittella and Helicoverpa armigera. At 100 ppm, the compound reduced total protein content by 55.75% and 53.01% ove...
Article
Full-text available
Objective: To evaluate the antifeedant and larvicidal activities of dichloromethane ( DCM ) , acetone, dimethylsulfoxide ( DMSO ) and aqueous extracts of Spilanthes acmella ( S. acmella ) leaves against Earias vitella, Helicoverpa armigera and Spodoptera litura. Methods: DCM , acetone, DMSO and aqueous extracts were studied using fruit and leaf dis...
Article
Full-text available
A study was conducted to evaluate the bioefficacy of different oil carriers (sunflower oil, seamum oil, neem oil, mineral oil), sugar solution and water formulation to be used in ultra low volume sprayer (ULV) along with rynaxypyr 18.5 SC (Coragen) for the management of pod borer at the Agricultural Research Station, Gulbarga, Karnataka, India duri...
Article
Full-text available
Objective: To assess the feeding deterrent, growth inhibitory and egg hatchability effects of PONNEEM on Helicoverpa armigera (H. armigera). Methods: Five oil formulations were prepared at different ratios to assess the feeding deterrent, growth inhibitory and egg hatchability effects on H. armigera. Results: Invariably all the newly formulate...
Article
Full-text available
Indiscriminate use of synthetic pesticides to control the pests causes negative effects on non-target organisms. Some of the chemicals under B and C categories are carcinogenic to humans. The present study was aimed to assess the antifeedant, larvicidal and pupicidal activities of Hygrophila schulii (syn. H. auriculata) and Blumea mollis against He...
Article
Full-text available
Objective: To find out the most resistant strain of Spodoptera litura (S. litura) from Tamil Nadu, Kerala and Karnataka by synthetic insecticide treatment. Methods: Using leaf disc no-choice method, the insects were tested with different doses for pesticides. The LC50 and LC90 values were calculated by probit analysis. Results: In the insect bi...
Article
Full-text available
Hexane, chloroform, and ethyl acetate extracts of Couroupita guianensis leaves were studied for ovicidal activity against S. litura. All the extracts showed ovicidal activity against S. litura. Maximum activity was noticed in hexane extract and it showed the least LCand LCvalues; the regression equation was also higher than the other extracts. All...
Article
This study was carried out to evaluate the antifeedant and larvicidal activities of Hyptis suaveolens Poit. (Lamiaceae) leaves crude extracts and their fractions against four lepidopteran pests namely Helicoverpa armigera (Hbn.), Spodoptera litura (Fab.), Earias vittella (Fab.) and Leucinodes orbonalis (G.). Hexane, chloroform and ethyl acetate ext...
Article
Hexane, chloroform and ethyl acetate extracts of Atalantia monophylla were evaluated for their larvicidal and pupicidal activities against Spodoptera litura. Bioefficacy of A. monophylla leaf extracts were studied leaf disc no choice method at 0.5, 1.0, 2.5 and 5.0% concentration of crude extracts and 125, 250, 500 and 1000 ppm concentration of fra...
Article
Fractions derived from Clerodendrum phlomidis Linn. F. and isolated compounds from chloroform extract were evaluated against Earias vittella Fab. for their ovicidal and oviposition deterrent activities. There were 12 fractions obtained with silica gel column chromatographic techniques using different solvent systems. Among the fractions, fraction 5...
Article
There is a great demand for food with increasing population of the world. Many chemical fertilisers and pesticides are used to increase crop productivity. Over use of pesticides and fertilisers has affected the environment and non-target organisms severely; minor pests have become major destructive pests. Hence, eco-friendly approaches are needed....
Article
Objective To evaluate the ovicidal activity of different botanical oil formulations against Helicoverpa armigera and Spodoptera litura.Methods Different botanical oils were formulated with different ratio to evaluate the ovicidal activity against H. armigera and S. litura at 5, 10, 15 and 20μl/L concentrations.ResultsAll the oil formulations showed...
Article
Full-text available
To evaluate the efficacy of Atalantia monophylla (A. monophylla) leaf in different solvent crude extracts and fractions against eggs of Spodoptera litura (S. litura). Hexane, ethyl acetate and chloroform solvent extracts of A. monophylla leaf and 12 fractions from hexane extract were screened at 5.0%, 2.5%, 1.0% and 0.5% for crude extracts and 1 00...
Article
Antifeedant and larvicidal activities of hexane, chloroform and ethyl acetate extracts of Clerodendrum phlomidis and Flueggea leucopyrus at 5, 2.5, 1.0 and 0.5% were studied against III instar larvae of Earias vittella. Hexane extract of F. leucopyrus and chloroform extract of C. phlomidis showed maximum antifeedant activity of 81.00 and 80.48%, re...
Article
Full-text available
Bioefficacy of hexane, chloroform and ethyl acetate extracts of the seeds of Ceasalpinea bonduc (L.) Roxb. was studied against third instar larvae of Spodoptera litura at 0.25, 0.5, 1, 2.5 and 5.0% concentrations. Significant antifeedant, larvicidal and pupicidal activities and least LC50 values were observed in chloroform extract. The chloroform e...
Article
Full-text available
Sphaeranthus indicus, Cleistanthus collinus and Murraya koenigii leaf extracts were tested against the third instar larvae of Culex quinquefasciatus. The plant material was shade dried at room temperature and powdered coarsely. From each plant, 500 g powder was macerated with 1.5 L of hexane, chloroform and ethyl acetate sequentially for a period o...
Article
Ononitol monohydrate isolated from the ethyl acetate extract of Cassia tora L. using column chromatography was evaluated for its antifeedant, larvicidal and growth inhibitory activities against Helicoverpa armigera and Spodoptera litura at different concentrations of 125, 250, 500 and 1000 ppm. Leaf disc no-choice method was used for the bioassay....