Green insecticides

Ebook "Essential oils as reagents in green chemistry" provides a valuable reference for the contribution of essential oils in the green chemistry, mainly in terms of their characteristics corresponding to their compositions, the development of their extraction technologies including both conventional and green process (e.g. microwave, ultrasound), and their sustainable applications as antioxidants, antimicrobials, insecticides, green solvents and synthons for the green synthesis.

78p tudohanhtau1006 29-03-2024 8 1   Download

The analytical method was validated and showed repeatability and trueness. The decay equations fit well to first-order kinetics with a correlation coefficient of R2 >0.93 and p

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Fruit borer, Helicoverpa armigera (Hubner) is a persistent pest on okra among fruit borer complex throughout India. Experiments were undertaken to investigate the persistence of spinetoram 12 SC against larval stage of H. armigera in the laboratory and to evaluate the effectiveness in the field in two seasons.

9p cothumenhmong9 18-01-2021 15 2   Download

There is a need to investigate the tools for the sucking pests of green gram to develop an effective management strategy as well as focused on the use of safer chemicals and pesticides.

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Experiments were carried out to determine the insecticidal activity of Aegle marmelos Correa against Callosobruchus chinensis L. in the laboratory. Plants were extracted with petroleum ether, methanol, ethanol and water by using Soxhlet apparatus and tested against adult of C. chinensis. Plant extracts were showed insecticidal activity by affecting through mortality, oviposition deterrence and inhibition of F1 adult emergence.

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This resulted in exploration of new alternatives with lesser residues and lower environment threat. One such thing is exploring the opportunities of using ecofriendly insecticides such as Bacillus thuringiensis (Berliner), Beauveria bassiana and NSKE 5% which can provide alternative, eco-friendly options to control this insect pest (Jeyarani and Karuppuchamy, 2010). Keeping in view, the present study was undertaken to evaluate the field efficacy of green insecticides against H. armigera.

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The present study entitled, efficacy of Different Insecticides against Green Semilooper Chrysodeixis acuta on Soybean was undertaken incorporating nine treatments were evaluated for their efficacy against Green Semilooper on soybean. The experiment was laid out in RBD and was conducted during kharif season of 2013-14.

10p trinhthamhodang1215 23-09-2020 12 2   Download

Sucking pests have become a serious problem in Bt cotton. The cotton aphid and mealybug reduces its yield to the extent of 30-40 per cent and 40-50 per cent, respectively. In this context an investigation was carried out on synthesis of silica nanoparticles from rice husk and its impact against cotton aphid and mealybug during 2017-18 at centre for nanotechnology lab, UAS Raichur. For comparison purposes, metal silica nanoparticles and dinotefuran 20% SG was used as an insecticide.

11p nguathienthan5 04-06-2020 15 1   Download

Among 25 insecticides and biorationals evaluated with and without Fish Oil Rosin Soap (5 ml/l) against different instars of scale insect, Hemilecanium imbricans, the insecticides viz., buprofezin 25 SC @ 1.25 ml/l, chlorpyriphos 20 EC @ 2 ml/l, acephate 75 SP @ 1 g/l, lambda-cyhalothrin 5 EC @ 0.5 ml/l, profenophos 50 EC @ 2 ml/l and dichlorvos 76 EC @ 1 ml/l were recorded highest per cent mortality of scales under laboratory conditions.

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The relative toxicity of ten insecticides and three ready to use combination products, used for cotton insect pest management were assessed against the green lace wing, Chrysoperla zastrowi sillemi (Esben-Peterson) in the laboratory, Department of Agricultural Entomology, N. M. College of Agriculture, Navsari Agricultural University, Navsari during 2014.

11p trinhthamhodang4 22-03-2020 20 2   Download

Now a day’s nanotechnology has become one of the most promising approaches in pest management. Nanoparticles represent a new generation of environmental remediation technologies that provide cost–effective solution to some of the most challenging insect pests. S.litura (F.) (Lepidoptera: Noctuidae) is a major polyphagous pest of field crops and vegetables, causing severe damage to the plants in all phenological crop stages.

9p caygaocaolon3 27-02-2020 13 0   Download

A comparative assessment of spray efficacy of different bio-control agents such as Beauveria bassiana (Bb), Trichoderma viridae (Tv), Pseudomonas fluroscence (Pf), Verticillium lecanni (Vl), Metarhizium anisopliae (Ma) were tested in different combinations along with neem soil and chemical insecticides like imidachloprid and Acephate on major insect pest of green gram (Vigna mungo L).

10p trinhthamhodang3 14-02-2020 17 0   Download

Chilli is an economically important and widely cultivated crop of India. Chilli leaf curl disease complex is one of the major limiting factors in chilli production which is drastically decrease yield. The crop grown in Jharkhand usually suffers seriously from this disease. A field experiment on integration of insecticides as soil application with one and/or two sprayings each of other insecticides viz. Imidacloprid 17.8% SL @ 0.003%, Spinosad 45 % SC@160 ml/ha and neem products viz., Neem Seed Kernel extract (NSKE 5%) @ 5ml/ litre and Neem oil 0.

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In this study, the effect of the temperature on the degradation period of Carbaryl (Sevin), a widely used outdoor and indoor insecticide, was investigated in a laboratory in soil and on green plants by using a new quantitative TLC (Thin Layer Chromatography) method.

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This book is part of the Green Chemistry series published by the Royal Society of Chemistry, and is designed to provide a modern overview of the current status of insecticides. We present the current approaches for insect pest control as green alternatives to classical agrochemicals, which should be of interest to a vast group of researchers: agrochemists, biochemists, chemists, toxicologists, etc. Throughout the book, the different approaches to pest control which involve ‘‘greener chemicals’’ in particular are emphasized.

152p banhkem0908 24-11-2012 56 12   Download