Majesh Tomson

Christ University, Bangalore · Department of Zoology

Forensic entomology uses necrophagous insects to determine post mortem interval (PMI) in criminal investigations. Sarcophaga albiceps Meigen is one among the primary colonisers of dead carcasses and hence its identification is crucial for forensic investigations; S. albiceps is a common species of Sarcophagidae found in India. Genitalia of male S....

A seasonal diversity was conducted in the forest of Bagepalli range of Chikkaballapur forest of Karnataka, India from August 2022 to August 2023. 21 species of ants were observed in this range belonging to 15 genera by following three methods such as pitfall traps, handpicking and bush beating. The abundant subfamily was Formicinae with 5 genera an...

Ants are eusocial insects responsible for decomposition of dead bodies. These are present in various stages of decomposition and have conquered the second position. These insects often disrupt the post-mortem interval of the dead body. Solenopsis invicta an invasive ant species show invasive activities and does not allow flies to colonise the carri...

This article aims to study and analyse the factors mentioned by Charles Darwin in his book, On the Origin of Species with respect to the unique flora and fauna found in the Australian continent. Natural selection and adaptability of the organisms meet at an inimitable point to develop their progeny. The way of utilization of the process, natural se...

Danio rerio (Zebrafish), one of the best model organism, to study circadian rhythm and disorders caused, once the rhythmicity is disturbed. Circadian rhythm is a 24hrs sleep-awake cycle. This rhythm has the control on all the physiological functions of the body either directly or indirectly. Melatonin is the important hormone to regulate sleep-wake...

JBiopest 14(1):12-21 (2021) Biocontrol of Rhynocoris fuscipes © 621 Functional response, host stage preference and development of Rhynocoris fuscipes (Fab.) (Heteroptera: Reduviidae) for two cotton pests Majesh Tomson ABSTRACT Considering the indispensable role of reduviid predators in ecofriendly pest management programme, the relationship between...

Entomopathogenic fungi are widely used as biocontrol agents against several agricultural pests. Among them, Beauveria bassiana is considered the important one against insect and other arthropod pests. The entomotoxic proteins of B. bassiana were extracted by Sephadex G-25 column, and fractionated using HPLC (BBI, BBII and BBIII) and tested against...

Background: Rhynocoris fuscipes (Fab.) (Hemiptera: Reduviidae) is a generalist predator of cotton pests and is commonly found inhabiting cotton growing regions in southern India. With the goal to integrate this predator in standard management practices used against cotton pests on a commercial scale, 1) we developed a protocol for adult group rear...

Nowadays synthesis of nanomaterials by using bio-root is limelight of modern nanotechnology. In the present investigation, we have isolated four strains viz: KFRI 330 (A), KFRI 332 (B), KFRI 351 (C) and KFRI 352 (D) of Beauveria bassiana from the forest soils in Kerala. Spore count was tested for all the strains of B. bassiana stored in the laborat...

In this work, the stage preference and functional response of the indigenous reduviid bug Rhynocoris longifrons feeding on five different densities of the cotton aphid Aphis gossypii, Phenacoccus solenopsis, and Dysdercus cingulatus was examined in Petri dish arenas containing cotton leaves under laboratory conditions. The reduviid predator exhibit...

Saprophytic fungi plays a crucial role in the pest management programme. Culture and mass production of the fungi is a tedious, laborious, time consuming and cost effective process. To minimize the use of chemicals, the metabolic products of the fungi have been utilized in the pest management progamme for the past one decade. A study was designed t...