The effect of aqueous leaf extract of Azadirachta indica (Neem) on reproduction was studied on male albino rats. The study was divided into three groups of six animals each. The first group (I) received distilled water serve as control. The second and third groups (II and III) of animals were administered the aqueous leaf extract daily at 250mg/kg body wt., and 350mg/kg body wt., respectively f...

the search for alternative ways of controlling sericultural pests has led to the investigation of plant sources for naturally occurring compounds which may have insect growth regulatory, feeding deterrency, repellency and confusantcy characteristics. more than 2000 species of the families asteraceae, fabaceae and euphorbiaceae are known that possess some insecticidal activity. plants with insec...

Neem is the name used to describe a heterogenous group of compounds derived from the tree Azadirachia indica, an evergreen of the mahogany family Melaceae and endemic to the Indian subcontinent and other tropical and subtropical areas. It is also known as India Lilac or margosa tree and more colloquially as ‘Panacea for all diseases’ and ‘Village Pharmacy’. Virtually every part of the tree incl...

To evaluate the effectiveness of selected insecticides and a botanical extract in management of okra shoot and fruit borer, Earias vittella an experiment was conducted in the field Laboratory, Department of Entomology, Bangladesh Agricultural University, Mymensingh during January to May 2011. Effectiveness of two synthetic insecticides (Kinalux 25 EC and Ecofuran 5 G) and a botanical (Neem leaf...

The tomato (Solanum lycopersicum) is one of the main vegetables grown in Sinaloa. This crop affected by pest insects, such as white fly (Bemisia tabaci). objective was to evaluate effect different doses neem-based biorational insecticide on population density whiteflies. A completely randomized design established whitefly adults. treatments evaluated were neem leaf extracts (NLE): (T1) control,...

the elm leaf beetle xanthogaleruca luteola müller (coleoptera: chrysomelidae), is a serious pest of elm (ulmus spp.) throughout iran. in the present study, lethal and sublethal effects of neem, achook® containing 0.03% azadirachtin, were assessed on mortality, growth, larval weight and feeding deterrence as well as enzymatic and non-enzymatic activities of third instar larvae of the elm leaf be...

Both in a choice and multi-choice laboratory tests, fewer adults of the banana root borer, Cosmopolites sordidus (Germar), settled under the corms of the susceptible banana "Nakyetengu" treated with 5% aqueous extract of neem seed powder or cake or 2.5 and 5% emulsified neem oil than on water-treated corms. Feeding damage by larvae on banana pseudostem discs treated with 5% extract of powdered ...

Bioactive compounds contained in the seed kernel and other parts of the neem tree (Azadirachta indica A. Juss) have been found to show insecticidal activities and other effects in many species of insects. These activities include antifeedancy, growth regulation, fecundity suppression, male sterility, oviposition repellency, changes in biological fitness such as loss of flying ability, immunodep...

A field survey in the farmers’ fields at Gurugram Haryana, few blocks focused on incidence of pests cabbage and cauliflower during rabi, 2017-18 2018-19. These revealed occurrence Plutella xylostella Spodoptera litura. Maximum number larvae P. S. litura was recorded Pataudi block as compared to those Farukhnagar, Sohana Gurugram. Seven neem-based biopesticides were evaluated along with check ca...