scholarly journals Sources of Potential Fungi Generated Biogenic Nanoparticles for the Control of Diseases Transmitting Mosquitoes: A Review

2021 ◽  
Vol 11 (2) ◽  
pp. 3523-3536
Keyword(s):  
Metarhizium Anisopliae ◽  
Anopheles Stephensi ◽  
Verticillium Lecanii ◽  
Mosquito Vectors ◽  
Successful Management ◽  
Biological Sources ◽  
Control Disease ◽  
Aspergillus Sp ◽  
Biogenic Nanoparticles ◽  
Better Than

Vector mosquitoes are diseases transmitting malaria, filarial, dengue, and Japanese encephalitis are an enormous burden to public people worldwide. There is no proper vaccine for those diseases; even though malaria is significant, challenges are still waiting for successful management. Recently, fungi and fungi-derived products control mosquito larvae, pupae, and adults better than compared to plants or other microorganisms. The using fungi such as Aspergillus sp., Beauveria bassiana, Metarhizium anisopliae, Verticillium lecanii are more virulent for controlling mosquito vectors, Aedes aegypti, Anopheles stephensi, Culex quinquefasciatus. The synthesis of silver, gold, zinc, and copper nanoparticles from those fungi has been getting good biological sources for significant reduction of mosquito larval and pupal populations. Fungal-based nanoparticles are highly effective and biorational insecticide for the control of vector populations. In this review, we discussed various sources of fungi that can be synthesized from different nanoparticles to control disease-transmitting mosquito vectors.

scholarly journals Effects of some bioinsecticides on the tomato leaf miner, Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae)

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Alime Bayindir Erol ◽  
Oktay Erdoğan ◽  
İsmail Karaca
Keyword(s):  
Mortality Rate ◽  
Active Ingredient ◽  
Metarhizium Anisopliae ◽  
Mortality Rates ◽  
Tomato Leaf ◽  
Tuta Absoluta ◽  
Leaf Miner ◽  
Verticillium Lecanii ◽  
Main Body ◽  
Tomato Leaf Miner

Abstract Background In this study, commercial bioinsecticides including entomopathogenic fungi, Beauveria bassiana, Metarhizium anisopliae, and Verticillium lecanii, and Spinetoram active ingredient insecticide were evaluated against the tomato leaf miner, Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae) larvae. Main body The active ingredients were prepared at the recommended concentrations under laboratory conditions and applied to the 2nd instar larvae of T. absoluta by spraying with a hand sprayer. On the 1st, 3rd, 5th, and 7th days of the application, evaluations were made by counting survived individuals. The findings showed that the highest mortality rates were detected in the case of Spinetoram with 56, 60, 88, and 100% on all counting days of the experiments, respectively. The highest mortality rate among bioinsecticides was recorded for M. anisopliae, with 87% mortality on the 7th day of application. Short conclusion As a result, Spinetoram was found the most effective insecticide when applied to T. absoluta, followed by M. anisopliae.

Can Wolbachia modulate the fecundity costs of Plasmodium in mosquitoes?

Parasitology ◽  
2017 ◽  
Vol 145 (6) ◽  
pp. 775-782 ◽  
Author(s):  
F Zélé ◽  
J Denoyelle ◽  
O Duron ◽  
A Rivero
Keyword(s):  
Infectious Diseases ◽  
Natural System ◽  
The Other ◽  
Mosquito Vectors ◽  
Fitness Costs ◽  
Other Hand ◽  
Reproductive Losses ◽  
Relationship Of ◽  
Better Than ◽  
Damaging Effects

AbstractVertically transmitted parasites (VTPs) such as Wolbachia are expected not only to minimize the damage they inflict on their hosts, but also to protect their hosts against the damaging effects of coinfecting parasites. By modifying the fitness costs of the infection, VTPs can therefore play an important role in the evolution and epidemiology of infectious diseases.Using a natural system, we explore the effects of a Wolbachia–Plasmodium co-infection on mosquito fecundity. While Plasmodium is known to frequently express its virulence by partially castrating its mosquito vectors, the effects of Wolbachia infections on mosquito fecundity are, in contrast, highly variable. Here, we show that Plasmodium drastically decreases the fecundity of mosquitoes by ca. 20%, and we provide the first evidence that this decrease is independent of the parasite's burden. Wolbachia, on the other hand, increases fecundity by roughly 10%, but does not alter the tolerance (fecundity–burden relationship) of mosquitoes to Plasmodium infection.Although Wolbachia-infected mosquitoes fare overall better than uninfected ones, Wolbachia does not confer a sufficiently high reproductive boost to mosquitoes to compensate for the reproductive losses inflicted by Plasmodium. We discuss the potential mechanisms and implications underlying the conflicting effects of these two parasites on mosquito reproduction.

scholarly journals Beauveria bassiana (Clavicipitaceae): a potent fungal agent for controlling mosquito vectors of Anopheles stephensi, Culex quinquefasciatus and Aedes aegypti (Diptera: Culicidae)

RSC Advances ◽  
2017 ◽  
Vol 7 (7) ◽  
pp. 3838-3851 ◽  
Author(s):  
Chinnasamy Ragavendran ◽  
Nawal Kishore Dubey ◽  
Devarajan Natarajan
Keyword(s):  
Aedes Aegypti ◽  
Beauveria Bassiana ◽  
Bioactive Compounds ◽  
Culex Quinquefasciatus ◽  
Anopheles Stephensi ◽  
Mosquito Vectors ◽  
Laboratory Conditions

The efficacy of bioactive compounds identified from Beauveria bassiana extracts as effective larvicidal and pupicidal agents against Anopheles stephensi, Culex quinquefasciatus and Aedes aegypti mosquito vectors under laboratory conditions are studied.

scholarly journals Improve pineapples growth by nano-membranes accessory and under stress condition in far north of Taiwan

2021 ◽  
Vol 6 (3) ◽  
pp. 799-817
Author(s):  
Dinh Thi Hong Thanh ◽  
◽  
Yu Kaung Chang ◽  
Son Zuang Chen ◽  
Hsiao Dao Chang ◽  
...  
Keyword(s):  
Natural Ventilation ◽  
Boundary Effect ◽  
Anion Form ◽  
Balance Analysis ◽  
Growth Character ◽  
Control Disease ◽  
And Control ◽  
Barrier Model ◽  
Control Water ◽  
Better Than

<abstract> <p>The dual layers of Nano-membranes barrier, could succeeded in regulation nutrient element and control water-borne disease by improving aerations through added dual layers of nano-membranes, this plantation model provide concept of providing hydrophilic properties and 500 nm pore size believed to be much precision tools for agricultural utilization. This rebuilding of pineapple cultivation was optimized in green-house with natural ventilation, Optimized humidity and free watering were properly practiced by implement of diffusion cage for a novel revealed boundary effect by 500 nm mold inject product. Effect indicated as indicated: Cellulose, PBT, CTA in sequence have better boundary effects over limiting the diffusion of nitrate, phosphate, and a small part of potassium in the root boundary regime through proper moisture with 0.5–0.8 L/pot button irrigation, The intensity of boundary effect were revealed in kinetic analysis follow in sequence: EC (1500 mg L<sup>−1</sup>) &gt; &gt; nitrate (300 mg L<sup>−1</sup>) &gt; TPO (2.5 mg L<sup>−1</sup>), while highly fluctuate for TPO. Then indication of hydrophilic PBT was better than PP was verified in barrier model. In the growth stage, separate initial I–III for direct releasing from the fertilizer and III–VI for hydrolysis &amp; secretion of nutrient, especially for TPO anion form, indicate highly ion charged or polar attraction exerted. While phosphate was delivered slowly, the organic practice was found promising in deliver and uptake to the final two or three stage for flowering and fruiting. The verification of deliver of nutrient by double caged box in the rhigime zone, indicated effective in lowered the damping off/nematode syndrome, which opened the extension cropping in suboptimal area for pineapples. The success of growth character improved by control disease and pest, reach complete maturation. Under 80 % of final fruiting, the balance analysis show consistence in expectation for Pya (wild) &gt; Pyc (hybrid) &gt; Pyb (interbreed).</p> </abstract>

scholarly journals FUNGAL PATHOGENS FOR BIOCONTROL OF INSECTS IN GREENHOUSES.

HortScience ◽  
1993 ◽  
Vol 28 (4) ◽  
pp. 260E-260
Author(s):  
Michael Brownbridge ◽  
Bruce L. Parker ◽  
Margaret Skinner
Keyword(s):  
Metarhizium Anisopliae ◽  
Fungal Pathogens ◽  
Green Peach Aphid ◽  
Western Flower Thrips ◽  
Great Promise ◽  
Verticillium Lecanii ◽  
Flower Thrips ◽  
Alternative Approaches ◽  
Further Development ◽  
Selection Of

Western flower thrips (WFT), green peach aphid (GPA) and sweet potato whitefly (SPWF) are major pests of the greenhouse industry. Chemical control of these pests is not desirable. Alternative approaches to pest management need to be developed. Entomopathogenic fungi hold great promise as sustainable biological control options. A broad range of indigenous fungal isolates have been screened for activity vs. WFT and GPA. Strains of Metarhizium anisopliae, Beauveria bassiana and Verticillium lecanii have been shown to be particularly effective. Plant and soil trials vs. WFT are now underway to permit selection of the best strains for further development. To date, assays vs. SPWF indicate that strains of Paecilomyces farinosus and B. bassiana are the most pathogenic.

scholarly journals Eco-Friendly Approach to Control Mosquitos (A. stephensi, C. quinquefasciatus, and A. aegypti) Using Silver Nanoparticle

2020 ◽  
Vol 9 (1) ◽  
pp. 203-210
Keyword(s):  
Silver Nanoparticles ◽  
Silver Nanoparticle ◽  
Ag Nanoparticles ◽  
Leaf Extract ◽  
Anopheles Stephensi ◽  
Methanol Extract ◽  
Silver Ions ◽  
Mosquito Vectors ◽  
Chemical Insecticide ◽  
Ft Ir

The available controlling agents for mosquito vectors are chemical insecticides and the frequent usage of these insecticides creating resistance among mosquito vectors and environmental pollutions. Thus, the study was designed to synthesize and characterize the Ag nanoparticles (AgNPs) through a methanol leaf extract of Ocimum canum and find the larvicidal prospective of the AgNPs on the 4th instar larvae of Anopheles stephensi, Culex quinquefasciatus, and Aedes aegypti. The obtained outcomes show that the methanol leaf extract of O. canum was effectively reduced the silver ions and produce constant silver nanoparticles. It was characterized and confirmed by various scientific techniques such as UV-vis spectrum, XRD, SEM, FT-IR and EDaX. Various concentrations (10, 50, 150, 200, and 250 ppm) of characterized nanoparticles were tested for larvicidal activity. The premier larval death was observed at 24 h of treatment on A. aegypti with LC50= 17.03 ppm, followed by C. quinquefasciatus with LC50= 14.89 ppm of methanol extract of O. canum and no death was noticed on A. stephensi. The LD90 value for A. aegypti and C. quinquefasciatus were 24.18 & 20.65 ppm respectively. Hence, the Ag nanoparticles produced from methanol leaf extract of O. canum retains efficiency to control A. aegypti and C. quinquefasciatus. Thus, it might support partially to replace the chemical insecticide which used against these vectors and might contribute to reduce environmental pollution.

scholarly journals Mosquitocidal properties of Morinda citrifolia L. (Noni) (Family: Rubiaceae) leaf extract and Metarhizium anisopliae against malaria vector, Anopheles stephensi Liston. (Diptera: Culicidae)

2014 ◽  
Vol 4 ◽  
pp. S173-S180 ◽  
Author(s):  
Kalimuthu Kovendan ◽  
Shanmugam Perumal Shanthakumar ◽  
Cheruparambath Praseeja ◽  
Palanisamy Mahesh Kumar ◽  
Kadarkarai Murugan ◽  
...  
Keyword(s):  
Malaria Vector ◽  
Metarhizium Anisopliae ◽  
Leaf Extract ◽  
Anopheles Stephensi ◽  
Morinda Citrifolia
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