scholarly journals USE OF VEGETABLE OILS TO CONTROL BEAN WEEVIL DEVELOPMENT ON COWPEA GRAINS

2019 ◽  
Vol 32 (4) ◽  
pp. 1117-1124 ◽  
Author(s):  
MARIA JOSÉ ARAÚJO WANDERLEY ◽  
NIVÂNIA PEREIRA DA COSTA ◽  
THATIANA MARIA BORGES SILVA ◽  
GEORGE RODRIGO BELTRÃO DA CRUZ ◽  
THIAGO DE SOUSA MELO
Keyword(s):  
Vegetable Oil ◽  
Vegetable Oils ◽  
Insecticidal Activity ◽  
Callosobruchus Maculatus ◽  
Cowpea Weevil ◽  
Insecticidal Effect ◽  
Citronella Oil ◽  
Plastic Containers ◽  
Repellency Activity ◽  
Different Doses

ABSTRACT Callosobruchus maculatus, commonly known as cowpea weevil, is the main pest affecting stored cowpea Vigna unguiculata. The damage resulting from the penetration and feeding of cowpea weevil larvae within the grains or seeds of V. unguiculata leads to weight loss, reduction of germination power and nutritional value and commercial depreciation of this plant. The objective of this work was to evaluate the insecticidal activity and repellency of vegetable oils extracted from fennel, citronella, neem and 'moringa' against C. maculatus adults. To evaluate the insecticidal activity, we placed 20 adult insects in plastic containers lined with filter paper impregnated with different doses (0.0 x 106, 5.0 x 106, 1.0 x 105, 1.5 x 105, 2.0 x 105, 3.05, 4.0 x 105 and 5.0 x 105 L) of each vegetable oil. The number of insects was analyzed 24 hours later. To evaluate the repellency activity, we used an arena formed by five circular plastic containers with the central container interconnected symmetrically to the others by plastic tubes arranged diagonally. Samples of 30 g of cowpea were impregnated with different doses (5.0 x 106, 1.0 x 105, 1.5 x 105 and 2.0 x 105 L) of each vegetable oil. We released 50 adults of C. maculatus in the central container and counted the number of insects per container 24 hours later. Citronella and fennel oils at a dose of 3.0 x 105 L demonstrated a higher insecticidal effect on C. maculatus. However, citronella oil presented the best repellent action.

scholarly journals Insecticidal activity of 2-tridecanone against the cowpea weevil Callosobruchus maculatus (Coleoptera: Bruchidae)

2007 ◽  
Vol 79 (1) ◽  
pp. 35-39 ◽  
Author(s):  
Yussef F.B. Braga ◽  
Thalles B. Grangeiro ◽  
Eder A. Freire ◽  
Helano L. Lopes ◽  
José N. S. Bezerra ◽  
...  
Keyword(s):  
Callosobruchus Maculatus ◽  
Adult Emergence ◽  
Developmental Time ◽  
Northeastern Brazil ◽  
Egg Hatching ◽  
Cowpea Weevil ◽  
Adult Weight ◽  
Insecticidal Effect ◽  
Pilocarpus Microphyllus ◽  
Different Doses

The effect of 2-tridecanone vapor on the cowpea weevil (Callosobruchus maculatus) development was determined. Seeds of cowpea were infested with adults and exposed to different doses of 2-tridecanone isolated from Pilocarpus microphyllus Stapf ex Holm, a plant species native from northeastern Brazil. The pure monoterpene was evaluated both undiluted as well as in the dilutions 1:10, 1:100 and 1:1,000 (v/v). The following parameters of the cowpea weevil life cycle were analyzed in response to decreasing doses of 2-tridecanone: number of eggs laid, percentage of egg hatching on seeds, percentage of adult emergence, adult weight at emergence, mean developmental time and number of adults emerged. Vapor of 2-tridecanone caused a significant (P < 0.05) reduction in the number of eggs laid, in the percentage of eggs hatched and in the number of emerged adults in infested seeds. The fumigant insecticidal effect of 2-tridecanone was mainly due to its ovicidal activity.

scholarly journals Protectant Effect of Vegetable Oils against Cowpea Weevil (Callosobruchus maculatus) on Stored Cowpea [Vigna unguiculata (L.) Walp]

2020 ◽  
pp. 1-8
Author(s):  
Kennedy Poloma Yoriyo ◽  
Garba Usman ◽  
Ezra Abba ◽  
Michael Mamman Degri
Keyword(s):  
Vegetable Oils ◽  
Palm Oil ◽  
Cotton Seed ◽  
Seed Oil ◽  
Callosobruchus Maculatus ◽  
Sesame Oil ◽  
Groundnut Oil ◽  
Cowpea Weevil ◽  
The Common ◽  
Cotton Seed Oil

Cowpea is one of the common edible annual herbaceous legume. Callosobruchus maculatus is one of the common post-harvest pest of cowpea.This work was aimed at determining the protectant effect of five vegetable oils; coconut oil, cotton seed oil, groundnut oil, palm oil and sesame oil for the protection of stored cowpea against cowpea weevil (Callosobruchus maculatus).The study was conducted in Gombe State University between October, 2018 and April, 2019. Black eye seeds were used for the experiment. A completely randomized design with five replicates per treatment was used.Black eyed seeds (susceptible variety) used for the experiment were subjected to different oil treatments namely: coconut, cotton, groundnut, palm and sesame oils applied at 0.4, 0.8 and 1.2 ml/100 g of cowpea equivalent to 4, 8 and 12 kg. Effect of the oils on weight lost and seed germination was also tested.Percentage adult mortality at 12 ml/Kg revealed that all the five oils killed 100% of the insects. Among the different edible oils evaluated, cotton seed oil was more effective killing 95% of the insect at 4 ml/kg and 100% at 8 ml/kg. The lowest mortality was recorded in the treatment with palm oil with 60 and 91.67% mortality at 4 and 8 ml/kg dose treatment respectively. Minimum percentage weight loss after 90 days of storage was observed in grains treated with cotton seed oil (1.95%) followed by sesame oil (2.00%) and groundnut oil (2.38%) at 12 ml/kg grains. Cotton seed oil, groundnut oil and sesame oil at doses between 8 and 12 ml/kg could be effective for protecting cowpea in storage against cowpea weevil for 90 days of storage.All the treatments indicated minimal effect on the germination of cowpea. The 8 ml/kg of cotton seed, groundnut and sesameoils investigated are promising bio friendly preservatives that could serve as an alternative formulations to synthetic chemical based insecticides for storage of cowpea.

LOCATION OF OILSEED PRODUCTION IN TERMS OF VEGETABLE OIL EXPORT

2020 ◽  
Vol 1 (10) ◽  
pp. 94-100
Author(s):  
Yu. V. RAGULINA ◽  
Keyword(s):  
Seed Production ◽  
Vegetable Oil ◽  
Vegetable Oils ◽  
Sunflower Oil ◽  
World Export ◽  
Oil Export ◽  
Oilseed Production

The article is devoted to the issues of placing seed production in the conditions of world export of vegetable oils. In 2019, the volume of Russian exports of sunflower oil exceeded 3 million tons for a total of $ 2,2 billion, which is about 30% of the vegetable oil produced in the country. In Russia, the main oilseeds are sunflower, rapeseed, and soy. Less common crops include oilseed flax, ginger, mustard, and safflower. It is stated that in 2001–2019, the acreage of all types of oilseeds in the country increased by more than 2 times, and the gross harvest – by 3,3 times, while the yield increased by 1,4 times.

scholarly journals Biological Control Against the Cowpea Weevil (Callosobruchus Chinensis L., Coleoptera: Bruchidae) Using Essential Oils of Some Medicinal Plants

2014 ◽  
Vol 54 (3) ◽  
pp. 211-217 ◽  
Author(s):  
Righi Assia Fatiha ◽  
Righi Kada ◽  
Anouar Khelil ◽  
Juli Pujade-Villar
Keyword(s):  
Biological Control ◽  
Medicinal Plants ◽  
Essential Oils ◽  
Germination Rate ◽  
Callosobruchus Chinensis ◽  
Cowpea Weevil ◽  
Chick Pea ◽  
Males And Females ◽  
Germinating Seeds ◽  
Different Doses

Abstract Chickpea (Cicer arietinum L.) is a valuable foodstuff but unfortunately this legume is prone to insect attacks from the chick pea weevil (Callosobruchus chinensis L.). This serious pest damages the chickpea and causes decreases in the yield and in the nutritional quality. Biological control is being used to deal with this problem. We tried different doses of the essential oils of three new medicinal plants, namely Salvia verbenaca L., Scilla maritima L., and Artemisia herba-alba Asso to limit the damage of the chick pea weevil pest, and to protect consumer’s health. To determine the effect and efficiency of the oil, the tests were conducted using the different biological parameters of fertility, longevity, and fecundity, under controlled temperature and relative humidity (28°C and 75%). The effectiveness of organic oils was demonstrated. We tested these oils on the germination of seeds. The obtained results showed that the tested plant oils have a real organic insecticide effect. The essential oil of Artemisia proved most effective as a biocide; achieving a mortality rate of 100%. A significant reduction in longevity was observed under the effect of 30 μl of S. maritima (1.3 days) and S. verbenaca (2.8, 4.6 days), respectively, for males and females compared to 8 and 15 days for the control. For fecundity, an inhibition of oviposition was obtained using 30 μl of Salvia and Scilla essential oils. The test on the seed germination using different essential oils, showed no damage to the germinating seeds. The germination rate was 99%. These findings suggest that the tested plants can be used as a bioinsecticide for control of the C. chinensis pest of stored products.

scholarly journals Insecticidal and repellent activity of the essential oil of Cinnamomum camphora var. linaloolifera Y. Fujita (Ho-Sho) and Cinnamomum camphora (L.) J Presl. var. hosyo (Hon-Sho) on Sitophilus zeamaisMots. (Coleoptera, Curculionedae)

2015 ◽  
Vol 17 (4 suppl 1) ◽  
pp. 769-773 ◽  
Author(s):  
R.L. CANSIAN ◽  
V. ASTOLFI ◽  
R.I. CARDOSO ◽  
N. PAROUL ◽  
S.S. ROMAN ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Insecticidal Activity ◽  
Sitophilus Zeamais ◽  
Repellent Activity ◽  
Cinnamomum Camphora ◽  
Preference Index ◽  
Lethal Doses ◽  
Repellency Activity

ABSTRACT The aim of this work was to evaluate the insecticidal and repellency activity of the essential oil of Cinnamomum camphora var. linaloolifera Y. Fujita (Ho-Sho) and Cinnamomumcamphora (L.) J Presl.var. hosyo (Hon-Sho), against the Sitophilus zeamais in maize grains. The essential oils were obtained by hydrodistillation and analyzed by GC-MS.The insecticidal activity was determined by the toxicity of different concentrations of essential oils during 24 hours of contact with the insects, in the absence of feed substrate. The Bioassays of repellency were conducted with lethal doses (LD50,LD25,and LD12.5) obtained from insecticidal bioassay. In order to compare the treatments the preference index (PI) was employed. The analysis of the essential oils of Cinnamomum camphora leaves indicated 68% of camphor and 9% of linalool for the variation Hon-Sho and 95% of linalool to the variation Ho-Sho. The variation Ho-Sho presented greatest insecticidal activity than the variation Hon-Sho against the Sitophiluszeamais, with LD50 of 0.35 μL/cm2, whereas in the variation Hon-Sho the ratewas 0.48 μL/cm2. However, considering only the concentrations of linalool and camphor of Ho-Sho and Hon-Sho, the lethal doses’ evaluation of these compounds were similar. The values of the preference index ranged from -0.3 to -0.8 for thevariation Ho-Sho and -0.2 to -0.7 for the variation Hon-Sho. The essential oils evaluated in this work showed repellent activity against Sitophiluszeamais in vitro and in trials performed in mini-silos.

scholarly journals Emulsion of systems containing egg yolk, polysaccharides and vegetable oil

2012 ◽  
Vol 36 (5) ◽  
pp. 543-550 ◽  
Author(s):  
Clitor Junior Fernandes de Souza ◽  
Edwin Elard Garcia Rojas
Keyword(s):  
Fatty Acid ◽  
Droplet Size ◽  
Vegetable Oil ◽  
Vegetable Oils ◽  
Xanthan Gum ◽  
Emulsion Stability ◽  
Egg Yolk ◽  
Emulsifying Properties ◽  
Emulsifying Activity ◽  
Excellent Stability

This work characterizes the emulsifying properties of systems containing egg yolk (0.1; 1.0 and 2.5 % w/v) and polysaccharides (xanthan gum, carrageen, pectin and carboxymethylcellulose) and three different vegetable oils (sunflower, canola, and palm oils). Emulsifying activity and emulsion stability were measured of each combination and it was found the effect of the oil on emulsion stability correlated to the amount of monounsaturated fatty acid. Additionally, increased egg yolk concentration increased emulsifying activity by reducing coalescence of oil droplets. Lastly, 2.5% egg yolk and 0.2% polysaccharide generated emulsions with high emulsifying activity, excellent stability, and droplet size of 4.32 µm.

scholarly journals ANÁLISE DE PESTICIDAS ORGANOCLORADOS EM ÓLEOS VEGETAIS POR CROMATOGRAFIA GASOSA DE ALTA RESOLUÇÃO (HRGC)

2018 ◽  
Vol 35 (3) ◽  
pp. 189
Author(s):  
Eudécio Bonfim dos Santos Dias ◽  
Eliane Da Costa Vilela ◽  
Fernando Mauro Lanças
Keyword(s):  
Solid Phase Extraction ◽  
Vegetable Oil ◽  
Vegetable Oils ◽  
Concentration Level ◽  
Solid Phase ◽  
Agricultural Products ◽  
Phase Extraction ◽  
Human Diet ◽  
Animal Fats ◽  
Chemical Products

Vegetable oil were introduced in human diet in the last decade to change the use of animal fats. The chemical products althrought utilized in correct manner can cause residues in food bring to healt there be a necessity of a constant monitoring of the concentration level the several agricultural products. The answer to this necessity has motivated the development of several of a methodology for simultaneous analysis of aldrin, dieldrin, endrin and endosulfanin vegetable oils by HRGC, using solid phase extraction (SPE) using silica and XAD-2. The recovery was 70-110%.

scholarly journals Insecticidal and Antifungal Activities of Chemically-Characterized Essential Oils from the Leaves of Withania frutescens L.

Life ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 88
Author(s):  
El Moussaoui Abdelfattah ◽  
Allali Aimad ◽  
Mohammed Bourhia ◽  
Khalid Chebbac ◽  
Ahmad Mohammad Salamatullah ◽  
...  
Keyword(s):  
Insecticidal Activity ◽  
Mycelial Growth ◽  
Callosobruchus Maculatus ◽  
Mortality Rates ◽  
Inhibitory Effect ◽  
Gas Chromatography Mass Spectrometry ◽  
Contact Toxicity ◽  
Inhalation Toxicity ◽  
Phytochemical Constituents ◽  
Significant Mortality

The current study was conducted to investigate antifungal and insecticidal activities of essential oil extracted from the Moroccan Withania frutescens L. (EOW), and their chemical composition was profiled. To achieve this goal, EOW was extracted by the hydro-distillation method and their phytochemical constituents were characterized by gas chromatography-mass spectrometry analyses (GC-MS). Insecticidal activity was evaluated by use of four tests: contact toxicity, inhalation toxicity, and repellent tests. Antifungal activity was evaluated on Fusarium oxysporum f. sp. Ciceris (F. oxysporum) using different concentrations of EOW. GC/MS analysis revealed that EOW was rich in carvacrol (31.87%), thymol (30.08%), and camphor (9.13%). At a 1-µL/L dose, EOW exhibited mortality rates of 23.13 ± 1.07% and 24.41 ± 1.21% against Callosobruchus maculatus (C.maculatus) by inhalation and contact, respectively. Notably, EOW dose of 20 μL/L caused significant mortality rates of 95.1 ± 3.5% and 76.69 ± 1.71% by inhalation and contact, respectively. EOW exhibited an inhibitory effect on mycelial growth against the tested fungi F. oxysporum of 100% and 93.5 ± 1.1% for the 9 and 4.5 mg/mL doses, respectively. The reduced mycelial growth rate for F. oxysporum was recorded to be 0.3 ± 0.1 and 0.6 ± 0.1 mm/h for the EOW doses of 2.25 and 4.5 mg/mL, respectively. The outcome of the present work showed that EOW has a promising antifungal and insecticidal activity, and it can therefore be employed as a natural alternative insecticidal and mycocidal agent to replace the chemically-synthesized ones.

scholarly journals Spent Coffee Ground Oil as a Potential Alternative for Vegetable Oil Production: Evidence from Oil Content, Lipid Profiling, and Physicochemical Characterization

2021 ◽  
Vol 12 (5) ◽  
pp. 6308-6320
Keyword(s):  
Vegetable Oil ◽  
Vegetable Oils ◽  
Physicochemical Characterization ◽  
Oil Production ◽  
Good Alternative ◽  
Sterol Composition ◽  
Lipid Profiling ◽  
Spent Coffee Ground ◽  
Potential Alternative ◽  
Pharmaceutical Uses

In this work, routinely measured physicochemical indices and lipid profiling of oil extracted from spent coffee grounds (SCG) were evaluated to assess the suitability of SCG as a new candidate for oil production. The obtained results reveal that the oil yield was 18.55±1.5 g/100g. Physicochemical indices were comparable to those of widely consumed vegetable oils in the range set in several studies. The main fatty acids of SCG oil were linoleic acid 43.20±2.19 g/100g, palmitic acid 31.78±2.02 g/100g, and oleic acid 12.68±1.15 g/100g dry basis. For sterol composition, β-sitosterol was the most abundant sterol (44.70±0.01%), followed by stigmasterol (27.57±0.01%) and campesterol (12.16±0.01%). In conclusion, this composition is typical for many other vegetable oils. Therefore, this oil may be considered a good alternative for vegetable oil production for new multi-purpose products such as cosmetic and industrial pharmaceutical uses.

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