نتایج جستجو برای: azadirachtin

تعداد نتایج: 312  

Journal: :Agronomy 2022

According to the European Directive 2009/128/EC and subsequent provisions activated in member states, conventional pesticides should be progressively replaced by “non-chemical tools and/or measures”. The identification of reliable alternatives is crucial achieve this objective. A project (PURE) was funded investigate topic with reference annual perennial crops. In framework, a number natural in...

2011
R Khatun W Islam K A M S H Mondal

Context: Pyrethroid insecticides and natural products individually or in mixture can protect stored products by retarded growth and delayed larval period. Objectives: To investigate the effects of cypermethrin, deltamethrin and azadirachtin either alone or in combinations on the larval development of Tribolium castaneum (Herbst). Materials and Methods: T. castaneum larvae were reared in flour m...

2015
Sunil Kr. Ghosh

Potato (Solanum tuberosum L.) is cultivated in India in a commercial scale and this crop is susceptible to various insect pests of which aphids (both Myzus persicae Sulzer and Aphis gossypii Glover) cause heavy damage especially by spreading virus diseases. Studies were made to evaluate efficacy of extracts from plants such as Pongamia pinnata L. and Nicotiana tabacum L. and Polygonum hydropipe...

2014
S. M. Adnan M. M. Uddin M. J. Alam M. S. Islam M. A. Kashem M. Y. Rafii M. A. Latif

An experiment was conducted in Field Laboratory, Department of Entomology at Bangladesh Agricultural University, Mymensingh, during 2013 to manage the mango hopper, Idioscopus clypealis L, using three chemical insecticides, Imidacloprid (0.3%), Endosulfan (0.5%), and Cypermethrin (0.4%), and natural Neem oil (3%) with three replications of each. All the treatments were significantly effective i...

2017
Suman Chaudhary Rupinder K. Kanwar Alka Sehgal David M. Cahill Colin J. Barrow Rakesh Sehgal Jagat R. Kanwar

Over the years, extensive use of commercially available synthetic pesticides against phytophagous insects has led to their bioaccumulation in the environment causing increased resistance and reduction in soil biodiversity. Further, 90% of the applied pesticides enter the various environmental resources as a result of run-off, exposing the farmers as well as consumers of the agricultural produce...

Journal: :Journal of applied microbiology 2015
D J Kelsey C Nieto-Delgado F S Cannon R A Brennan

AIMS To examine organic neem compounds for their effective growth inhibition of saprotrophic soft-rot fungi on anthracite bricks bound with collagen and lignin for use in iron foundry cupolas as an alternative fuel source. METHODS AND RESULTS Azadirachtin, crude neem oil (NO), and clarified neem oil extract (CNO) were combined with copper to inhibit the growth of the soft-rot fungus, Chaetomi...

Journal: :International Journal of Plant and Soil Science 2023

The oldest oil seed crop in India is sesame, which grown semi-arid tropical, subtropical, and temperate climates. It produced over an area of 17.14 million hectares, yielding 7.84 tonnes, at a productivity 457 kg/ha. harm caused by insect pests one the main obstacles to sesame production. Shoot webber capsule borer, Antigastra catalaunalis Duphonchel, leafhopper, Orosius albicinctus Distant, ar...

Journal: :Journal of the American Mosquito Control Association 1999
M S Mulla T Su

Botanical insecticides are relatively safe and degradable, and are readily available sources of biopesticides. The most prominent phytochemical pesticides in recent years are those derived from neem trees, which have been studied extensively in the fields of entomology and phytochemistry, and have uses for medicinal and cosmetic purposes. The neem products have been obtained from several specie...

Journal: :Journal of economic entomology 2016
Therese M Poland Tina M Ciaramitaro Deborah G McCullough

Emerald ash borer (Agrilus planipennis Fairmaire) (Coleoptera: Buprestidae), an invasive phloem-feeding insect native to Asia, threatens at least 16 North American ash (Fraxinus) species and has killed hundreds of millions of ash trees in landscapes and forests. We conducted laboratory bioassays to assess the relative efficacy of systemic insecticides to control emerald ash borer larvae in wint...

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