BIOEFFICACY OF PLANT EXTRACTS AGAINST MUSTARD APHID AND THEIR NATURAL ENEMIES

2019 ◽  
Vol 25 (1) ◽  
Author(s):  
NARENDRA SINGH ◽  
N. S. BHADAURIA ◽  
PRADYUMN SINGH
Keyword(s):  
Plant Extracts ◽  
Natural Enemies ◽  
Untreated Control ◽  
Plant Material ◽  
Aphid Population ◽  
College Of Agriculture ◽  
Mustard Aphid ◽  
Plant Materials

The Bio-efficacy of eleven plant extracts namely viz.Neem Kernel; Rhizome of Ginger; Leaves of Datura, Gajarghas, Harsingar, Oak and Latjeera; Bulb of Garlic and Onion; Flowers of Chrysenthemum and Fruits of Chilli in the concentration of 5 percent and imidacloprid @ 40 g ai/ha was tested against mustard aphid, Lipaphiserysimi and their effect on D. rapae and Coccinellid beetle were tested in the Department of Entomology, College of Agriculture, Gwalior (M.P.). All the tested plant materials and imidacloprid @ 40 g ai/ha were effective significanty in reducing the aphid population over control.The aphid population in treated plots ranged from 7.2 to 40.0 as against 85.4 aphid/twig in untreated control. Among the plant material, three sprays of Neem Kernel were found most effective followed by three sprays of chilli fruits.All the plant extracts were found significantly safer to D. rapae and coccinellid bettle in comparision to insecticide (imidacloprid).

scholarly journals PlantCrystals—Nanosized Plant Material for Improved Bioefficacy of Medical Plants

Materials ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 4368
Author(s):  
Abraham M. Abraham ◽  
Reem M. Alnemari ◽  
Claus Jacob ◽  
Cornelia M. Keck
Keyword(s):  
Antioxidant Capacity ◽  
Plant Extracts ◽  
Plant Material ◽  
Low Cost ◽  
Physical Stability ◽  
Cosmetic Products ◽  
Plant Materials ◽  
Production Methods ◽  
Medical Plants ◽  
Produce Plant

PlantCrystals are obtained by milling plant material to sizes < 10 µm. Due to the disruption of the plant cells, active compounds are easily released, rendering the PlantCrystal technology an effective and low-cost process for the production of environmentally friendly plant extracts. The extracts can be used to produce phytomedicines, nutritional supplements or cosmetic products. Previous studies could already demonstrate the use of PlantCrystals to improve the antimicrobial or antifungal activity of different plants. This study investigated whether PlantCrystal technology is suitable to produce plant derived formulations with high antioxidant capacity. The study also aimed to identify the most suitable production methods for this. Methods: Various plant materials and parts of plants, i.e., seeds, leaves and flowers, and different methods were employed for the production. PlantCrystals were characterized regarding size, physical stability and antioxidant capacity (AOC). Results: PlantCrystals with particles < 1 µm were produced from the different plant materials. Both production methods, i.e., high-pressure homogenization, bead milling or the combination of both were suitable to obtain PlantCrystals. Nano milling of the plant material greatly affected their AOC and resulted in formulations with distinctly higher AOC when compared to classical extracts. Conclusions: Rendering plant material into small sized particles is highly effective to obtain plant extracts with high biological efficacy.

Comparative Effectiveness Of Seed Treating And Foliar Insecticides Against Sucking Pests Of Cotton And Impact On Their Natural Enemies

2013 ◽  
Vol 38 (1) ◽  
pp. 61-70 ◽  
Author(s):  
SMA Hossain ◽  
MA Baque ◽  
MR Amin
Keyword(s):  
Natural Enemies ◽  
Untreated Control ◽  
Seed Treatment ◽  
Foliar Spray ◽  
Cost Ratio ◽  
Research Station ◽  
Benefit Cost Ratio ◽  
Benefit Cost ◽  
Thrips Population ◽  
Cotton Cultivar

The Imidacloprid insecticide, Gaucho 70 WS at 1.5, 2.5, 3.5, 4.5 and 5.5 g/kg seed was used as seed treatment and monocrotophos 40 WSC at 1120 ml/ha was applied as foliar spray on CB9 cotton cultivar to suppress aphid, whitefly and thrips, and impact on their natural enemies during 2008-2011 at the Regional Cotton Research Station, Dinajpur, Bangladesh. The activity of natural enemies, such as ladybird beetle, lacewing, syrphid, and spider population on the sucking pests attacking cotton cultivar CB9 and yield of cotton were recorded. Imidacloprid significantly reduced aphid, whitefly, and thrips population on cotton crops compared to untreated control or foliar spray of monocrotophos 40 WSC at 1120 ml/ha. Ladybird beetles, lacewings, syrphids, and spiders were abundant in the field but their population decreased in the treated plots compared to untreated control. The CB9 cotton cultivar produced significantly higher yield (1.73 t/ha) with a benefit cost ratio 12.47 when seeds were treated with Imidacloprid at 5.5 g/kg fuzzy seed. This study indicated that Imidacloprid (Gaucho 70 WS) used as a seed treatment may be suggested to the cotton growers for controlling sucking pests. Bangladesh J. Agril. Res. 38(1): 61-70, March 2013 DOI: http://dx.doi.org/10.3329/bjar.v38i1.15190

scholarly journals Biological activity from indigenous medicinal plants of Mauritius

2005 ◽  
Vol 77 (1) ◽  
pp. 41-51 ◽  
Author(s):  
A. Gurib-Fakim ◽  
H. Subratty ◽  
F. Narod ◽  
J. Govinden-Soulange ◽  
F. Mahomoodally
Keyword(s):  
Medicinal Plant ◽  
Plant Extracts ◽  
Biological Properties ◽  
Pharmacological Properties ◽  
Plant Materials ◽  
In Vivo Screening ◽  
Medicinal Plant Extracts ◽  
Minor Ailments

The Mauritian population has a long tradition in the use of ethno-medicine, and the practice is still strong, especially in the treatment of minor ailments. Such interest stems from an existing culture, and many “tisanes” are still prepared from plant materials and sold in several markets around the island.This paper will focus on the various chemical/biological screening techniques currently being used to evaluate the biological properties of medicinal plant extracts. Particular emphasis will be put on extraction and various screening for biological/pharmacological properties. Due consideration will be given to the pharmacological approaches that utilize different animal models for the in vitro and in vivo screening of medicinal plant extracts.

scholarly journals Sonication, a Potential Technique for Extraction of Phytoconstituents: A Systematic Review

Processes ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1406 ◽  
Author(s):  
Muhammad Modassar A. N. Ranjha ◽  
Shafeeqa Irfan ◽  
José M. Lorenzo ◽  
Bakhtawar Shafique ◽  
Rabia Kanwal ◽  
...  
Keyword(s):  
Electric Fields ◽  
Food Processing ◽  
Plant Material ◽  
Primary Objective ◽  
Green Technologies ◽  
Plant Materials ◽  
Novel Technologies ◽  
Green Food ◽  
Microwave Assistance ◽  
Subcritical Fluid

Traditional extraction techniques have lost their optimum performance because of rising consumer demand and novel technologies. In this regard, several techniques were developed by humans for the extraction of plant materials from various indigenous sources, which are no longer in use. Many of the techniques are not efficient enough to extract maximum plant material. By this time, evolution in extraction has led to development of various techniques including microfiltration, pulsed electric fields, high pressure, microwave assistance, enzyme assistance, supercritical fluid, subcritical fluid and ultrasonication. These innovations in food processing/extraction are known as “Green Food Processing”. These technologies were basically developed by focusing on three universal parameters: simplicity, energy efficiency and economy. These green technologies are practical in a number of different food sectors, mostly for preservation, inhibition of microorganisms, inactivation of enzymes and extraction of plant material. Like the others, ultrasonication could also be used for the said purposes. The primary objective of this review is to confine the potential use of ultrasonication for extraction of oils, pectin and phytochemicals by reviewing the literature systematically.

scholarly journals Quality Control of Herbal Medicines: From Traditional Techniques to State-of-the-art Approaches

Planta Medica ◽  
2021 ◽  
Author(s):  
Luiz C. Klein-Junior ◽  
Maira R. de Souza ◽  
Johan Viaene ◽  
Tania M. B. Bresolin ◽  
André L. de Gasper ◽  
...  
Keyword(s):  
Quality Control ◽  
Data Analysis ◽  
Plant Extracts ◽  
Herbal Medicines ◽  
Botanical Origin ◽  
Plant Materials ◽  
Holistic View ◽  
Marker Selection ◽  
Chromatographic Profile ◽  
Oriented Approach

AbstractHerbal medicines are important options for the treatment of several illnesses. Although their therapeutic applicability has been demonstrated throughout history, several concerns about their safety and efficacy are raised regularly. Quality control of articles of botanical origin, including plant materials, plant extracts, and herbal medicines, remains a challenge. Traditionally, qualitative (e.g., identification and chromatographic profile) and quantitative (e.g., content analyses) markers are applied for this purpose. The compound-oriented approach may stand alone in some cases (e.g., atropine in Atropa belladonna). However, for most plant materials, plant extracts, and herbal medicines, it is not possible to assure quality based only on the content or presence/absence of one (sometimes randomly selected) compound. In this sense, pattern-oriented approaches have been extensively studied, introducing the use of multivariate data analysis on chromatographic/spectroscopic fingerprints. The use of genetic methods for plant material/plant extract authentication has also been proposed. In this study, traditional approaches are reviewed, although the focus is on the applicability of fingerprints for quality control, highlighting the most used approaches, as well as demonstrating their usefulness. The literature review shows that a pattern-oriented approach may be successfully applied to the quality assessment of articles of botanical origin, while also providing directions for a compound-oriented approach and a rational marker selection. These observations indicate that it may be worth considering to include fingerprints and their data analysis in the regulatory framework for herbal medicines concerning quality control since this is the foundation of the holistic view that these complex products demand.

scholarly journals Alleviating soil acidity through plant organic compounds

2001 ◽  
Vol 44 (2) ◽  
pp. 185-189 ◽  
Author(s):  
Anderson R. Meda ◽  
Marcelo E. Cassiolato ◽  
Marcos A. Pavan ◽  
Mário Miyazawa
Keyword(s):  
Plant Extracts ◽  
Soil Acidity ◽  
Soil Column ◽  
Soil Surface ◽  
Pigeon Pea ◽  
Drainage Water ◽  
Water Soluble ◽  
Plant Materials ◽  
Mato Grosso ◽  
Oil Seed

A laboratory experiment was conducted to evaluate the effects of water soluble plant extracts on soil acidity. The plant materials were: black oat, oil seed radish, white and blue lupin, gray and dwarf mucuna, Crotalaria spectabilis and C. breviflora, millet, pigeon pea, star grass, mato grosso grass, coffee leaves, sugar cane leaves, rice straw, and wheat straw. Plant extracts were added on soil surface in a PVC soil column at a rate of 1.0 ml min-1. Both soil and drainage water were analyzed for pH, Ca, Al, and K. Plant extracts applied on the soil surface increased soil pH, exchangeable Ca ex and Kex and decreased Al ex. Oil seed radish, black oat, and blue lupin were the best and millet the worst materials to alleviate soil acidity. Oil seed radish markedly increased Al in the drainage water. Chemical changes were associated with the concentrations of basic cations in the plant extract: the higher the concentration the greater the effects in alleviating soil acidity.

scholarly journals Assessment of analgesic and antipyretic activity of traditional formula used in the treatment of seasonal infections

2013 ◽  
Vol 2 (9) ◽  
pp. 143-147
Author(s):  
Kugalur Ganesan Parthiban ◽  
Senthil Kumar Natesan ◽  
Ganesan Sekar ◽  
Krishnamoorthi Mahalakshm
Keyword(s):  
Plant Extracts ◽  
Rural Areas ◽  
Dosage Form ◽  
Pharmaceutical Journal ◽  
Albino Rats ◽  
Individual Plant ◽  
Significant Activity ◽  
Plant Materials ◽  
Antipyretic Activity ◽  
Liquid Dosage Form

Traditional treatments and medicines are the main sometimes the only source of health care for millions of people living in rural areas of developing countries. The aim of the present study is to investigate the analgesic and antipyretic activity of individual plant extracts and poly-herbal formula [PHF] made in to liquid dosage form of three different doses in albino rats. The plant materials were extracted in boiling distilled water for six hours, filtered, concentrated and dried. The aqueous extracts were prepared in to poly-herbal liquid dosage form by using water, glycerol mixture and acacia 2% in three different preparation of varying extract doses.1ml of above preparations orally fed for investigation. Pentozocine and paracetamol was used as standard drugs respectively. For individual plants the extracts were suspended in 2% acacia solution and performed. The results of analgesic and anti-pyretic activity of PHF 1 and PHF 2 showed significant results (P<0.01 and P<0.05 respectively) and PHF3 did not show any significant results. In the individual plant extracts slightly significant activity (P<0.05) was observed.DOI: http://dx.doi.org/10.3329/icpj.v2i9.16075 International Current Pharmaceutical Journal, August 2013, 2(9): 143-147

scholarly journals Badanie wpływu naturalnych ekstraktów roślinnych na izolowane wierzchołki wzrostów pedów w hodowli in vitro [Investigation of the influence of natural plant extracts on isolated generative apices cultivated in vitro]

2015 ◽  
Vol 26 (1) ◽  
pp. 5-15
Author(s):  
E. Kuta ◽  
C. Ryka
Keyword(s):  
Plant Extracts ◽  
Plant Material ◽  
Mineral Nutrient ◽  
Careful Selection ◽  
Natural Plant ◽  
In Vitro Investigation ◽  
Coconut Meal ◽  
Selection Of ◽  
Spinach Leaves

The aim of the present paper Was to test the value of various plant extracts (yeast barm, mature walnut embryos, coconut meal, young spinach leaves and tomato juice) used as the complementary elements of White's mineral nutrient for the culture <i>in vitro</i> of generative apices of winter wheat, rape and wetch. The results showed that the generative apices of investigated planits had various nutritive requirements which point to the necessity of a careful selection of a specific nutrient for particular plant material.

scholarly journals Anticariogenic Potential of Korean Native Plant Extracts against Streptococcus mutans

Planta Medica ◽  
2019 ◽  
Vol 85 (16) ◽  
pp. 1242-1252
Author(s):  
Yun-Chae Lee ◽  
Sung-Gook Cho ◽  
Sang-Woo Kim ◽  
Jeong Nam Kim
Keyword(s):  
Growth Inhibition ◽  
Streptococcus Mutans ◽  
Plant Extracts ◽  
Negative Control ◽  
Minimal Bactericidal Concentration ◽  
Native Plant ◽  
Plant Materials ◽  
The Individual ◽  
Adhesive Proteins

AbstractNumerous chemically synthesized compounds are widely used in oral hygiene products. However, due to their potential risk, there is a need to improve the safety and quality of dental care by seeking alternative control agents such as those naturally found in plant materials. Here we assessed antibacterial potentials of extracts from 100 species of Korean native plants against Streptococcus mutans on cariogenesis. Among those, extracts from five plants (Arctii Fructus, Caryopteris incana, Aralia continentalis, Symplocarpus renifolius, and Lamium amplexicaule) showed a growth inhibition of S. mutans. The five extracts were further individually evaluated for their minimal inhibitory concentration and minimal bactericidal concentration. Interestingly, a synergistic antibacterial activity was observed with the combination of sodium fluoride and the plant extracts. To determine the anti-biofilm activity of plant extracts, S. mutans was treated with increasing concentrations of the extracts in the range from 1250 to 3750 µg/mL. When S. mutans was grown in the defined biofilm medium containing the individual extracts of 47 species, the biofilm amount markedly decreased compared to that of a negative control. Notably, the extract of S. renifolius significantly downregulated the gtf and spaP genes for synthesis of glucan and adhesive proteins in S. mutans, and L. amplexicaule decreased the expression of gtfD gene. Therefore, these results demonstrate that the five plant extracts modulate survival and pathogenesis of S. mutans by growth inhibition and downregulation of the gene(s) implicated in biofilm formation.

scholarly journals Using UHPLC-MS Profiling for the Discovery of New Dihydro-β-Agarofurans from Australian Celastraceae Plant Extracts

Molecules ◽  
2019 ◽  
Vol 24 (5) ◽  
pp. 859 ◽  
Author(s):  
Mario Wibowo ◽  
Paul Forster ◽  
Gordon Guymer ◽  
Andreas Hofmann ◽  
Rohan Davis
Keyword(s):  
Natural Products ◽  
Detailed Analysis ◽  
Plant Extracts ◽  
Analytical Method ◽  
Large Scale ◽  
Endemic Plant ◽  
Plant Materials ◽  
Scientific Databases ◽  
New Compounds ◽  
Mixed Samples

An analytical method using UHPLC-MS was developed and applied to 16 crude CH2Cl2 extracts from Australian Celastraceae plants; the endemic plant materials were accessed from Griffith University’s NatureBank resource and included bark, fruit, leaf, root, twig and mixed samples, all of which were collected from Queensland, Australia. The generated UHPLC-MS data were analysed and dereplicated using the scientific databases Dictionary of Natural Products and SciFinder Scholar in order to potentially identify new dihydro-β-agarofurans from local Celastraceae plants. These investigations led to the large-scale extraction and isolation work on a prioritised fruit sample that belonged to the rainforest plant Denhamia celastroides. Chemical investigations resulted in the purification of four new natural products, denhaminols O–R (1–4), along with the related and known compound, denhaminol G (5). The structures of all the new compounds were determined via detailed analysis of NMR and MS data.

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