scholarly journals Miticidal Evaluation of Different Non-Volatile Bioactive Compounds Extracted from Ferula Oopoda Against Apple Mites

2021 ◽  
Vol 24 (1) ◽  
pp. 16-19
Author(s):  
Ahmed Saeed ◽  
◽  
Nizam Baloch ◽  
Taimur Qambrani ◽  
Sheraz Khan ◽  
...  
Keyword(s):  
Sodium Hydroxide ◽  
Human Health ◽  
Filter Paper ◽  
Leaf Tissue ◽  
Mortality Rates ◽  
Bunsen Burner ◽  
Environment Friendly ◽  
Yellow Colour ◽  
Aerial Stem ◽  
Grown Plant

The research was administered in order to spot the miticidal effect of wild grown plant namely Ferula oopoda against the mites that destroy the leaf tissue and also the colour of the fruit in trees. The theme was to get the herb’s (1) aerial, stem and root part about 1 kg and was soaked for about 7 days and then extract the oil by the help of vaccum rotary evaporator, the extracted oil is then allowed to stay for a day in HCl (0.2M), then the solution is filtered and then some charcoal is added to the filtrate and now, it is put on the Bunsen burner for a while, now the HCl extract is again filtered and basified by the addition of Sodium hydroxide (5M), the yellow colour is the indication of basification and now the ppts are collected that are formed over the filter paper, the ppts are dried and later on sprayed on the apple mites and their mortality rates are noted at exposure time of 6, 12, 24, 36 and 48h. It may be a new revolutionary technique that can be economical as well as environment friendly as the oil is only lethal for the target apple mites and doesn’t not harm human health.

Study on the Lead-Free Easy-Cutting Mg-Sb Brass

2011 ◽  
Vol 239-242 ◽  
pp. 1670-1673 ◽  
Author(s):  
Lei Li ◽  
Biao Ma ◽  
Qiang Li ◽  
Guo Jie Huang
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Grain Boundaries ◽  
Human Health ◽  
Hot Working ◽  
Experimental Results ◽  
Lead Free ◽  
Environment Friendly ◽  
Working Property ◽  
Pipe Joint

Traditional lead brass is gradually prevented from application by many countries’ governments because lead does harm to human health and pollutes the environment. New types of environment-friendly lead-free brass with favorable machinability are urgently demanded in the electrical, electronics and plumping fields. Lead-free Mg-Sb brass was fabricated in present. Experimental results showed that when the content of Mg is 1.0wt%, Sb is 0.8wt% and Cu is 58.0~59.0wt%, the alloy’s mechanical properties and machinability are favorable for industry application. With the increase of the content of Sb, the machinability increased, while the mechanical properties decreased. Lots of Cu2Mg and Cu9Sb2 particles on the order of microns exist in the inner-grain and grain boundaries. These particles improve the machinability, however, lower the tensile strength and the elongation. A three-way pipe joint was successfully punched with the fabricated Mg-Sb brass bar, and this demonstrated that the fabricated Mg-Sb brass possesses favorable hot working property.

scholarly journals Selectivity of Insecticides Against Telenomus podisi Ashmead (Hymenoptera: Platygastridae) on Corn

2018 ◽  
Vol 10 (12) ◽  
pp. 185 ◽  
Author(s):  
Elidiane Feltrin-Campos ◽  
Marcos Gino Fernandes ◽  
Gabrielle de Lima Masson ◽  
Thaís Araujo Corrêa ◽  
José Fernando Jurca Grigolli
Keyword(s):  
Adverse Effects ◽  
Pest Management ◽  
Human Health ◽  
Control Strategy ◽  
Mortality Rates ◽  
Biological Trait ◽  
Parasitism Rates ◽  
Lambda Cyhalothrin ◽  
Euschistus Heros ◽  
Telenomus Podisi

Use of synthetic insecticides remains main control strategy for percevejo-marrom (Euschistus heros) in corn. However, indiscriminate use of these products can have adverse effects on the environment and human health. Thus, incorporation of bio-agents like Telenomus podisi a preferred option in corn pest management. Study was conductedto evaluate the effects of insecticides application on T. podisi mortality rates, the number of eggs parasitized by the F0 generation, and number of emergent F1 parasitoids. The insecticides tested were: imidacloprid+bifenthrin, bifenthrin+carbosulfan, thiametoxam+lambda-cyhalothrin, acephate, bifenthrin, and imidacloprid at the highest concentrations indicated for corn. Each insecticide was classified according to its selectivity, based on the methodology proposed by IOBC/WPRS. Only imidacloprid did not affect parasitoid survival however the parasitism rates of F0 females, were affected, classifying this product as slightly harmful for this biological trait. Regarding parasitoid emergence (F1), thiametoxam+lambda-cyhalothrin was classified as moderately harmful, while bifenthrin+carbosulfan and bifenthrin were considered harmful, no parasitism occurred. Thus the evaluated insecticides were classified as slightly harmful to the parasitoid T. podisi under laboratory conditions for the biological characteristics evaluated. Further studies under semi-field and field conditions are needed in order to confirm these toxicity levels on T. podisi.

RESPONSES OF LARVAL CHORISTONEURA ROSACEANA (HARRIS) (LEPIDOPTERA: TORTRICIDAE) TO A FEEDING STIMULANT

1997 ◽  
Vol 129 (2) ◽  
pp. 363-369 ◽  
Author(s):  
S.Y. Li ◽  
S.M. Fitzpatrick
Keyword(s):  
Bacillus Thuringiensis ◽  
Filter Paper ◽  
Leaf Tissue ◽  
Choice Experiments ◽  
Choristoneura Rosaceana ◽  
Leaf Discs ◽  
Feeding Stimulant ◽  
Treated Leaf

AbstractThe commercial feeding stimulant Pheast® was tested in the laboratory to determine its attractive and phagostimulatory effects on larval Choristoneura rosaceana (Harris). In choice experiments, larvae were attracted initially to filter paper discs treated with Pheast, but did not remain on or near treated discs. Larvae were not attracted initially to raspberry leaf discs treated with Pheast, but were more likely to stay near treated leaf discs than water-dipped ones. Larvae were neither attracted to nor arrested on whole raspberry leaves treated with Pheast. In no-choice experiments, larvae fed Pheast-treated leaves consumed more leaf tissue than, and grew almost twice as quickly as, larvae fed leaves dipped in water. When larvae were fed leaves treated with Dipel WP (Bacillus thuringiensis var. kurstaki) plus 5% Pheast, the mortality was 93% greater than that of larvae fed leaves treated with Dipel WP alone. These results suggest that Pheast has potential to enhance efficacy of B. thuringiensis against C. rosaceana on raspberries in the field.

Assimilate distribution patterns and carbohydrate concentration changes in organs of Solidago canadensis during an annual developmental cycle

1977 ◽  
Vol 55 (9) ◽  
pp. 1121-1127 ◽  
Author(s):  
Ian K. Bradbury ◽  
G. Hofstra
Keyword(s):  
Leaf Tissue ◽  
Dry Weight ◽  
Distribution Patterns ◽  
Growth Cycle ◽  
Developmental Cycle ◽  
Solidago Canadensis ◽  
Inflorescence Development ◽  
Carbohydrate Concentration ◽  
Concentration Changes ◽  
Aerial Stem

At different stages in the growth cycle the short-term translocation pattern of 14C-labelled assimilates was determined together with carbohydrate concentration changes in two Solidago canadensis L. populations growing on abandoned pasture sites in southern Ontario. Tagging whole shoots with 14C revealed that (1) a high (50–70%) proportion of assimilated carbon is retained by leaf tissue, (2) the proportion of assimilated carbon incorporated in the aerial stem increases during shoot extension but declines later during inflorescence development, (3) the proportion of assimilated carbon translocated to the inflorescence during flowering and fruiting is considerably in excess of its dry weight contribution, and (4) underground tissues, even the new rhizomes which develop in late season, account for a comparatively small proportion of assimilated carbon. Tagging individual leaves with 14C during reproductive development showed that the proportion of leaves exporting assimilates to the new rhizome system progressively increases, while that supplying the inflorescence decreases, after August and that individual leaves do not simultaneously export carbon to the inflorescence and new rhizomes. Carbohydrate analysis showed that early shoot development is associated with a marked reduction in carbohydrate status of both roots and rhizomes, which is subsequently restored, and that roots and rhizomes retain a storage function for at least 2 and 3 years, respectively.

scholarly journals Nutraceutical Properties of Apples and Derived Products (Pomace, Seeds, Peels)

2019 ◽  
Vol 70 (3) ◽  
pp. 934-939 ◽  
Author(s):  
Gabriela Ploscutanu ◽  
Alina Mihaela Elisei ◽  
Olimpia Dumitriu Buzia
Keyword(s):  
Human Health ◽  
Industrial Production ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Scientific Field ◽  
Total Phenolic ◽  
Environment Friendly ◽  
Polyphenolic Profile ◽  
Significant Attention ◽  
Nutraceutical Properties

Because of multiple benefits for human health, apple polyphenols have attracted significant attention in the scientific field. This review is a compilation of the polyphenolic profile of apple and apple derived products. This approach may represent an environment-friendly alternative for the revalorization of the apples derived products, generated in excessive amounts by the industrial production of juice, ciders, vinegar. In conclusion, our results demonstrate that the total phenolic content varies considerably in fresh apples and products resulted from their processing, influencing their nutraceutical properties.

scholarly journals DIFFERENCES OF CULEX SPP AND AEDES SPP LARVAE MORTALITY RATES ON THE USE OF THEMEFOS

2021 ◽  
Vol 12 (1) ◽  
pp. 99-105
Author(s):  
Wahyu Darmawan
Keyword(s):  
Mortality Rate ◽  
Filter Paper ◽  
Human Activities ◽  
Mortality Rates ◽  
Probit Analysis ◽  
Mosquito Vectors ◽  
Water Reservoirs ◽  
Stagnant Water ◽  
Quasi Experimental ◽  
Small Discharge

Eradication of the mosquito vectors that cause several diseases is still being carried out today where methods are still being developed. This research aims to identify the mortality rate of Culex spp. and Aedes spp. larvae for the use themefos or abate with sowed and wrapped of filter paper. The author uses quasi-experimental to observe that mortality. The design was devided into two groups, giving themepos/abate with a national dose of (1gr/10 liters of water) in 24 hours with threatment sowed and wrapped of filter paper through the analysis of varians/annova test to observe the varians of the time of mortality of Culex spp. and Aedes spp. larvae as well as probit analysis to see the probability of time of the larvae’s death.The result of this research is no defference in the mortality of Culex spp. and Aedes spp. larvae for the uses of themefos/abate with sowed and wrapped of filter paper. The authors suggestion is giving themefos or abate by wrapping filter paper preverably for larvae in a stagnant water such as Aedes spp larvae because it does not provide residual granules in water reservoirs used for human activities while the used of themepos/abate with sowed can also be used for a stagnant water or has a small discharge.

scholarly journals Analysing the Impact of Carbon Emissions and Non-renewable Energy Use on Infant and Under-5 Mortality Rates in Europe: New Evidence Using Panel Quantile Regression

2021 ◽  
Author(s):  
Bosede Ngozi ADELEYE ◽  
Aviral Kumar Tiwari ◽  
Muhammed Ibrahim SHAH ◽  
Saif Ullah
Keyword(s):  
Renewable Energy ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Human Health ◽  
Carbon Emissions ◽  
Energy Use ◽  
Mortality Rates ◽  
Gas Emissions ◽  
Access To Food ◽  
The Impact

Abstract The concentration of greenhouse gas emissions is considered to increase, and this can undermine the access to basic resources that are necessary for leading a healthy life such as access to food, water, health and environment. Environmental health is closely linked to human health and the world is witnessing an exponential increase in the trend of the greenhouse gas emissions which pose significant threat to both the environment and human health. Hence, this study contributes to the health-environment discourse and uses an unbalanced panel data on 46 European countries from 2005 to 2015 to investigate the impact of carbon emissions and non-renewable energy on infant and under-5 mortality rates. Consistent findings from static and dynamic analyses reveal that: (1) carbon emissions exhibit mortality-inducing properties; (2) non-renewable energy show mortality-reducing properties; (3) persistency in mortality rates exist; (4) the exacerbating (reducing) impact of emissions (non-renewable energy) dwindles (increases in absolute values) at higher distributions of mortality rates; and (5) Euro Union countries show lower mortality rates relative to non-Euro Union members. Policy recommendations are discussed.JEL Classification: I00, I10, I15, I18, I19

scholarly journals POTENTIATION OF COPAÍBA OIL-RESIN WITH SYNTHETIC INSECTICIDES TO CONTROL OF FALL ARMYWORM

2017 ◽  
Vol 30 (4) ◽  
pp. 1059-1066
Author(s):  
WALDIANE ARAÚJO DE ALMEIDA ◽  
IGOR HONORATO LEDUÍNO DA SILVA ◽  
ANA CLÁUDIA VIEIRA DOS SANTOS ◽  
AURÉLIO PAES BARROS JÚNIOR ◽  
ADALBERTO HIPÓLITO DE SOUSA
Keyword(s):  
Human Health ◽  
Spodoptera Frugiperda ◽  
Filter Paper ◽  
Fall Armyworm ◽  
Botanical Insecticides ◽  
Response Curves ◽  
Significant Toxicity ◽  
Copaiba Oil ◽  
Lepidoptera Noctuidae ◽  
Selection Of

ABSTRACT The control of Spodoptera frugiperda (J. E. SMITH) (Lepidoptera: Noctuidae) has been carried out mainly with pyrethroids and organophosphates insecticides. The continuous and indiscriminate use of synthetic insecticides, for decades, has led to the selection of resistant populations and has caused concerns for human health and the environment. An alternative is the use of botanical insecticides, including through the mixtures with synthetic insecticides. This study aimed to investigate the toxicity of copaiba oil-resin mixtures (COR) with deltamethrin, beta-cyfluthrin, beta-cypermethrin, methomyl, triazophos and chlorpyrifos for S. frugiperda. Bioassays were performed in the laboratory using newly hatched caterpillars on a contaminated surface (filter paper). Initially, concentration-mortality curves were established for each insecticide and COR. Based on the results, experiments were conducted to verify the effect of the COR mixtures with synthetic insecticides in the proportions of 1:1 (LC25 + LC25) on larvae of S. frugiperda. Additionally, COR concentration-response curves were established by adding 1/8 of the recommended rate of each insecticide. Notably, the use of this concentration for all insecticides was previously determined in bioassays, and no significant toxicity was found for S. frugiperda caterpillars. It was found that the toxicity of COR increased substantially by adding synthetic insecticides, especially with lower mixtures with beta-cypermethrin, methomyl and triazophos.

Efficient Destruction of Chlorophenols by Ultraviolet Irradiation

2012 ◽  
Vol 476-478 ◽  
pp. 1955-1959
Author(s):  
Xu Chun Li ◽  
Jun Ma ◽  
Si Yang Yue
Keyword(s):  
Human Health ◽  
Ultraviolet Irradiation ◽  
Chloride Ions ◽  
Solution Ph ◽  
Environment Friendly ◽  
Chlorine Atoms ◽  
Efficient Treatment ◽  
First Order ◽  
First Order Kinetics ◽  
Pseudo First Order

Chlorophenols (CPs), a group of recalcitrant and toxic pollutants, are widespread in the environment and threating human health. The environment-friendly technology, UV irradiation, could efficiently destruct CPs. The study investigated the influence of solution pH and positions and number of substituted chlorine atoms on photodegradation process of CPs, and also studied the photodegradation pathway. It found that the photodegradaton process of CPs was highly dependent on solution pH, and higher pH favored the degradation. The photodegradation processes agreed well with the pseudo-first order kinetics, and para- and ortho- positions and lower chlorination degree were more favorable for photodegradation of CPs. Most of the chlorine atoms were released as chloride ions, and suggest that the cleavage of the C-Cl bond occurred during the photodegradation process. It will provide some guidance for efficient treatment of CPs in water.

Triphosgene as a Safe and Environment-Friendly Carbonylation Reagent for the Preparation of 2-Benzimidazolone

2014 ◽  
Vol 955-959 ◽  
pp. 651-655
Author(s):  
Wen Bin Yi ◽  
Fang Luan ◽  
Jian Min Xiu ◽  
Lv Qi Jiang ◽  
Chun Cai
Keyword(s):  
Human Health ◽  
Organic Synthesis ◽  
Dimethyl Carbonate ◽  
Synthetic Methods ◽  
Environment Friendly ◽  
Wide Range ◽  
Pharmaceutical Activity ◽  
Novel Method

2-Benzimidazolone and their derivatives which have a wide range of biological and pharmaceutical activity are important intermediates for organic synthesis. Reported synthetic methods mostly involved unfriendly materials like phosgene, dimethyl carbonate and urea. This paper developed a novel method for the synthesis of 2-benzimidazolone by the reaction of o-phenylendiamine with triphosgene (BTC) instead of phosgene. BTC is a safer solid and easier to handle compared to phosgene. BTC can greatly reduce risks to both human health and the environment.

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