scholarly journals Microbial Control of Invasive Forest Pests with Entomopathogenic Fungi: A Review of the Current Situation

Insects ◽  
2019 ◽  
Vol 10 (10) ◽  
pp. 341 ◽  
Author(s):  
Surendra K. Dara ◽  
Cristian Montalva ◽  
Marek Barta
Keyword(s):  
Entomopathogenic Fungi ◽  
Insect Pests ◽  
Microbial Control ◽  
Environmental Implications ◽  
Forest Pests ◽  
The North ◽  
The World ◽  
Forest Pest Management ◽  
The Status ◽  
Cypress Aphid

The health of the forestlands of the world is impacted by a number of insect pests and some of them cause significant damage with serious economic and environmental implications. Whether it is damage of the North American cypress aphid in South America and Africa, or the destruction of maple trees in North America by the Asian long horned beetle, invasive forest pests are a major problem in many parts of the world. Several studies explored microbial control opportunities of invasive forest pests with entomopathogenic bacteria, fungi, and viruses, and some are successfully utilized as a part of integrated forest pest management programs around the world. This manuscript discusses some invasive pests and the status of their microbial control around the world with entomopathogenic fungi.

scholarly journals Neglected tropical diseases in Brazil

2009 ◽  
Vol 51 (5) ◽  
pp. 247-253 ◽  
Author(s):  
José Angelo L. Lindoso ◽  
Ana Angélica B.P. Lindoso
Keyword(s):  
Neglected Tropical Diseases ◽  
Clinical Manifestations ◽  
Northern Region ◽  
New Drugs ◽  
World Health ◽  
Tropical Diseases ◽  
The North ◽  
The World ◽  
The Status ◽  
Health Organization

Poverty is intrinsically related to the incidence of Neglected Tropical Diseases (NTDs). The main countries that have the lowest human development indices (HDI) and the highest burdens of NTDs are located in tropical and subtropical regions of the world. Among these countries is Brazil, which is ranked 70th in HDI. Nine out of the ten NTDs established by the World Health Organization (WHO) are present in Brazil. Leishmaniasis, tuberculosis, dengue fever and leprosy are present over almost the entire Brazilian territory. More than 90% of malaria cases occur in the Northern region of the country, and lymphatic filariasis and onchocerciasis occur in outbreaks in a particular region. The North and Northeast regions of Brazil have the lowest HDIs and the highest rates of NTDs. These diseases are considered neglected because there is not important investment in projects for the development of new drugs and vaccines and existing programs to control these diseases are not sufficient. Another problem related to NTDs is co-infection with HIV, which favors the occurrence of severe clinical manifestations and therapeutic failure. In this article, we describe the status of the main NTDs currently occurring in Brazil and relate them to the HDI and poverty.

scholarly journals HISTORICAL PERSPECTIVES ON THE DEVELOPMENT AND SPREAD OF ENGLISH

2012 ◽  
Vol 5 ◽  
pp. 52-69
Author(s):  
Graeme Davis
Keyword(s):  
World Wide ◽  
Mother Tongue ◽  
Historical Perspectives ◽  
The North ◽  
Local Dialect ◽  
The World ◽  
The Status ◽  
Global Status ◽  
Global Language ◽  
A Minor

There has never been a language like English. Mother tongue to around 375 million people and second language to many hundreds of millions more, the first language of business and the internet, English is truly a world-wide language. English has a unique position as the essential language skill for the world, for it is in English that the world is communicating. It is the prime beneficiary of the world-wide communications revolution and the only language ever to have achieved global status. In recorded history – in a little over one-thousand five-hundred years - it has grown from the local dialect of a minor Germanic tribe of a few thousand people living in the north of continental Europe to become the most widespread language ever. Never before has any language achieved the status now enjoyed by English, nor could this dominance have been predicted. How English has become the global language is a natural area for enquiry.

scholarly journals IRANIAN PEOPLES: LINGUISTIC CLASSIFICATION AND LANGUAGE SITUATION.

2019 ◽  
Author(s):  
Э.Б. Сатцаев
Keyword(s):  
The North ◽  
Trace Back ◽  
Western Asia ◽  
North Eastern ◽  
The World ◽  
The Status ◽  
Official Languages ◽  
Ancient Times ◽  
Linguistic Classification ◽  
Official Status

Иранские языки входят в группу индоевропейских языков. Они являются близкородственными индоарийским языкам. Предки индоарийских и иранских народов в глубокой древности жили в тесном общении, занимали одну общую территорию и говорили на близкородственных арийских диалектах. Обособление иранских диалектов от индийских произошло не позднее начала II тысячелетия до н.э. На иранских языках говорили многочисленные древние племена и народности, сыгравшие важную роль в мировой истории. Все иранские языки ведут свое происхождение к одному языку, который явился материальной основой их исторической общности. По своему статусу современные иранские языки значительно отличаются друг от друга. Наиболее значимыми иранскими языками, имеющими широкое применение в официальной сфере, являются персидский, дари, таджикский, афганский (пушту), курдский, осетинский и белуджский. Современный персидский язык распространен в основном в Иране. Из современных иранских языков к нему ближе всего таджикский и дари, которые имеют общее происхождение. Персидский язык является наиболее крупным, развитым и распространенным иранским языком, который охватывает все жизненно важные сферы. Одним из крупнейших по численности иранских народов являются афганцы (пуштуны). В Афганистане официальными языками признаны афганский (пушту) и дари (фарси-кабули). Дари занимал и занимает более сильные позиции. Другим крупным ираноязычным народом являются белуджи. Белуджский язык распадается на две основные группы. Другой иранский народ – курды – испокон веков населяет территорию Западной Азии. Численность курдов в мире составляет около 40 млн. человек. Курдский язык представлен в многочисленных диалектных разновидностях. Выделяются две группы диалектов – северная и южная. Курдский язык имеет многовековую литературную традицию, но его официальный статус невысок. Осетинский язык – остаток северо-восточной скифо-сарматской ветви иранских языков. Он на протяжении почти двух тысяч лет развивался вне каких-либо прямых контактов с иранскими языками. Официальный статус осетинского языка сравнительно высок, однако, численность говорящих на нем уменьшается. The Iranian languages are part of the Indo-European language family. They are closely related Indo-Aryan languages. The ancestors of the Indo-Aryan and Iranian peoples in ancient times lived in close communication, occupied common territory and spoke closely related Aryan dialects. The divergence of the Iranian and the Indian dialects took place prior to the beginning of the 2nd millennium BC. Numerous ancient tribes and nationalities who played important role in the world history spoke Iranian languages. All Iranian languages trace back their origin to one language, which was the material basis of their historical community. The status of each of the modern Iranian languages is different. The most significant Iranian languages widely used in the official sphere are Persian, Dari, Tajik, Afghan (Pashto), Kurdish, Ossetian, and Baluchi. Modern Persian is widely spoken in Iran. Of all modern Iranian languages, the closest to it are Tajik and Dari, which share common origin. Persian is the largest, most developed and widespread Iranian language, which covers all vital areas. One of the largest in number of Iranian peoples are Afghans (Pashtuns). In Afghanistan the official languages are recognized as Afghan (Pashto) and Dari (Farsi-Kabuli). Dari held and holds a stronger position. A large Iranian-speaking people are the Balochi. Baluchi is divided into two main groups. Another Iranian people are the Kurds, who for centuries have inhabited the territory of Western Asia. The number of Kurds in the world is about 40 million people. The Kurdish language is represented in numerous dialectal varieties. There are two groups of dialects – north and south. Although Kurdish has a centuries-old literary tradition, its official status is low. The Ossetian language is a remnant of the north-eastern Scythian-Sarmatian branch of the Iranian languages. For almost two thousand years, it has been developing without any direct contacts with Iranian languages. The official status of the Ossetian language is relatively high, but the number of speakers is decreasing.  

scholarly journals Entomopathogenic Fungi: Factors Involved in Successful Microbial Control of Insect Pests

2020 ◽  
Vol 17 (2) ◽  
pp. 74-83
Author(s):  
Ghulam Ali Bugti ◽  
Wang Bin ◽  
Shafique Ahmed Memo ◽  
Ghulam Khaliq ◽  
Muhammad Abuzar Jaf
Keyword(s):  
Entomopathogenic Fungi ◽  
Insect Pests ◽  
Microbial Control

scholarly journals Activity of strains of Metarhizium anisopliae (Metsch) Sorokin against white grub (Chiloloba acuta, Scarabaeidae, Coleoptera) under laboratory condition in Nepal

2018 ◽  
Vol 17 ◽  
pp. 82-91 ◽  
Author(s):  
Dipak Khanal
Keyword(s):  
Entomopathogenic Fungi ◽  
Metarhizium Anisopliae ◽  
Insect Pests ◽  
Microbial Control ◽  
White Grub ◽  
White Grubs ◽  
Larval Stages ◽  
Commercial Strain ◽  
Randomized Design ◽  
Completely Randomized Design

Soil insect pests are the major productivity constrains of different crops among which white grubs (Coleoptera: Scarabaeidae), both adult and larval stages, are extremely destructive in nature. Laboratory studies were conducted to evaluate the virulence of an indigenous and a commercial strain of the entomopathogenic fungi, Metarhizium anisopliae (Metsch.) Sorokin, against white grubs species Chiloloba acuta by applying the dipping method at Entomology Division, NARC, Nepal. Third instars larvae of C. acuta were dipped in suspensions of indigenous and commercial strains (Pacer) of M. anisopliae at different concentrations ranging from 3.33×104 to 1.04×108 spores/ml for 3-5 seconds which resulted in 97.8% and 89% mortalities with the highest dose of 1.04×108 spores/ml 40 days after inoculation (DAI), respectively. The LC50 values for indigenous and commercial strain were 3.5×105 and 1.88×106 spores/ml, respectively, with the potency of 1:0.28 at 40 DAI. Bioassays were conducted in completely randomized design. From results it is concluded that the tested strains of entomopathogenic fungi have potential as microbial control agents in managing white grubs in laboratory and it is suggested to be tested under farmers field condition.

Virulence of Some Entomopathogenic Fungi Isolates of Beauveria bassiana (Hypocreales: Cordycipitaceae) and Metarhizium anisopliae (Hypocreales: Clavicipitaceae) to Aulacaspis tubercularis (Hemiptera: Diaspididae)and Icerya seychellarum (Hemiptera: Monophlebidae) on Mango Crop

2019 ◽  
Author(s):  
Atef M M Sayed ◽  
Christopher A Dunlap
Keyword(s):  
Beauveria Bassiana ◽  
Entomopathogenic Fungi ◽  
Metarhizium Anisopliae ◽  
Insect Pests ◽  
Microbial Control ◽  
Probit Analysis ◽  
Scale Insects ◽  
Elapsed Time ◽  
Fungal Isolates ◽  
Further Development

Abstract Six fungal isolates of Beauveria bassiana (Balsamo) Vuillemin and one isolate of Metarhizium anisopliae (Metschnikoff) Sorokin were isolated and evaluated for their pathogenicity to Icerya seychellarum (Westwood) and Aulacaspis tubercularis Newstead. There is a positive correlation between the concentration of the fungal blastospore concentrations and the percentage of mortality. Bio-efficacy increased significantly after inoculation with increasing concentration of blastospores and elapsed time up to 12 d after inoculation. The mortality of nymphs exposed to fungal isolates at various concentrations varied between 2.5 and 88.8%. Probit analysis of data at 95% confidence limits of LC50 and LT50s showed significant differences in the susceptibility of nymphs of I. seychellarum and A. tubercularis to the tested fungal isolates. The fungal isolates of Egy-6 and Egy-9 were the most effective against I. seychellarum and A. tubercularis, respectively. They had the lowest LC50 (4.20 × 105 and 5.71 × 103 blastospore ml−1) and LT50 (ranged from 4.61 to 9.79 and 4.84 to 8.71 d), respectively. The current study showed that all the fungal isolates yielded moderate mortality rates of nymphs and adult female populations of both the tested insect pests. To our knowledge, this is the first report of bio-efficacy of Beauveria and Metarhizium isolates against members of the Diaspidadae and Monophlebidae family insects. These results establish that the use of these native entomopathogenic fungi isolates of B. bassiana (Egy-3, Egy-4, Egy-6, Egy-7, Egy-9, and Egy-10) and M. anisopliae (Egy-5) could be considered for further development as microbial control agents of the mealybug and scale insects as a potential biological agent for use in an IPM program.

scholarly journals The linguocultural semantics of the anthroponyms and toponyms in G. Martin’s novel A Game of Thrones and the peculiarities of their translation into Ukrainain

2021 ◽  
Keyword(s):  
Great Britain ◽  
Proper Names ◽  
Real Life ◽  
The Novel ◽  
The North ◽  
The World ◽  
The Status ◽  
Single Strategy ◽  
Social Code ◽  
Game Of Thrones

The article analyses the linguocultural features of the anthroponyms and toponyms in fiction and their translation into Ukrainian (linguocultural factor taken into account) basing on G. Martin’s novel A Game of Thrones. The main differences between fiction onyms and real life onyms existing in language are defined. Fiction onyms are influenced by such factors as the cultural and social code, historical information, fiction space, the author’s attitude to this or that phenomenon. It is established that in the analysed novel, the characters’ names contain information about the status and place of living of their owners: the names of those who live in the North are based on old English, Scottish and Welsh names, the wildings get Scandinavian ones, those who live in the South get variants of Roman, Greek and Arabic names. The author often makes speaking names and allusions to real historic personalities. It is pointed out that the world in which the characters of the novel exist has a medieval English colouring, so the characters’ names often look like real names of that period or are their derivatives. Complex toponyms often contain parts of words that can be found among the toponyms of Great Britain and carry certain historic information. A conclusion is drawn about the expressive linguocultural features of the proper names of the novel by G. Martin A game of Thrones which reflect the nationally specific cultural and historic information. Choosing translation means in each case is up to the translator who has to consider the linguocultural factor too, as the translation of fiction onyms is much more difficult than the translation of real proper names. In certain cases, the translation can be called more or less successful but there is no single strategy for rendering authorial proper names that carry semantic and cultural information.

scholarly journals Entomopathogenic fungi as biological controllers: New insights into their virulence and pathogenicity

2012 ◽  
Vol 64 (1) ◽  
pp. 21-42 ◽  
Author(s):  
Ali Shahid ◽  
Qayyum Rao ◽  
Allah Bakhsh ◽  
Tayyab Husnain
Keyword(s):  
Entomopathogenic Fungi ◽  
Extracellular Enzymes ◽  
Insect Pests ◽  
Microbial Control ◽  
Successful Infection ◽  
Fungal Entomopathogens ◽  
Penetration Ability ◽  
Insect Integument ◽  
Managed Ecosystems ◽  
Effective Use

Entomopathogenic fungi vary considerably in their mode of action and virulence. Successful infection depends primarily on the adherence and penetration ability of a fungus to the host integuments. A variety of extracellular enzymes is produced during the degradation of insect integument. The attempts to control insects have changed over time from chemicals to natural control methods. This is why the development of natural methods of insect control or biopesticides, is preferred. By the use of fungal entomopathogens, insect pests can be controlled. There is no doubt that insects have been used for many years, but their effective use in the field remains elusive. However, their additional role in nature has also been discovered. Comparison of entomopathogens with conventional chemical pesticides depends on their efficiency and cost. In addition to efficiency, there are advantages in using microbial control agents, such as human safety and other non-target organisms; pesticide residues are minimized in food and biodiversity increased in managed ecosystems. In the present review the pathogenicity and virulence of entomopathogenic fungi and their role as biological control agents using biotechnology will be discussed.

scholarly journals Water balance and hydrology research in a mountainous permafrost watershed in upland streams of the Kolyma River, Russia: a database from the Kolyma Water-Balance Station, 1948–1997

2018 ◽  
Vol 10 (2) ◽  
pp. 689-710 ◽  
Author(s):  
Olga Makarieva ◽  
Nataliia Nesterova ◽  
Lyudmila Lebedeva ◽  
Sergey Sushansky
Keyword(s):  
Water Balance ◽  
Scientific Research ◽  
Natural Conditions ◽  
North East ◽  
The North ◽  
The World ◽  
The Status ◽  
Scientific Significance ◽  
Meteorological Observations ◽  
Kolyma River

Abstract. In 2018, 70 years have passed since the beginning of observations at the Kolyma Water-Balance Station (KWBS), a unique scientific research hydrological and permafrost catchment. The volume and duration (50 continuous years) of hydrometeorological standard and experimental data, characterizing the natural conditions and processes occurring in mountainous permafrost conditions, significantly exceed any counterparts elsewhere in the world. The data are representative of mountainous territory of the North-East of Russia. In 1997, the station was terminated, thereby leaving Russia without operating research watersheds in the permafrost zone. This paper describes the dataset containing the series of daily runoff from 10 watersheds with an area from 0.27 to 21.3 km2, precipitation, meteorological observations, evaporation from soil and snow, snow surveys, soil thaw and freeze depths, and soil temperature for the period 1948–1997. It also highlights the main historical stages of the station's existence, its work and scientific significance, and outlines the prospects for its future, where the Kolyma Water-Balance Station could be restored to the status of a scientific research watershed and become a valuable international centre for hydrological research in permafrost. The data are available at https://doi.org/10.1594/PANGAEA.881731.

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