Ferrisia virgata (striped mealybug).

Author(s):  
Gillian Watson

Abstract Ferrisia virgata is a highly polyphagous mealybug. It reproduces quite rapidly in tropical conditions, but it tolerates subtropical and to some extent temperate conditions too. It has been reported on host-plants belonging to over 203 genera in 77 families, and can damage many crops, particularly tropical fruit, nut and spice crops and field crops like soybean and tomato. It is known to transmit plant badnavirus diseases of cocoa and black pepper. It is of Neotropical origin and spread around the world in only about 10 years after being first described from Jamaica. Its polyphagy has facilitated its spread by human transport of infested plants, and it is now established in all the subtropical and tropical zoogeographic regions. Its small size and cryptic habits make it difficult to detect and identify at plant quarantine inspection. The increase in international trade in fresh plant material in recent years is likely to facilitate its continued spread.

2021 ◽  
Author(s):  
Gillian Watson

Abstract Planococcus citri is a highly polyphagous, adaptable mealybug that can feed on many host plants in a variety of conditions, and can reproduce rapidly. It has been reported on over 200 host-plant species belonging to 191 genera and 82 families, and can seriously damage many crops, particularly citrus and glasshouse tomatoes. It is known to transmit some plant virus diseases like Cacao swollen shoot virus. The mealybug is of Old World origin, but its polyphagy has facilitated its spread about the world by human transport of infested plants over many years, and it is now established in in all the temperate and tropical zoogeographic regions, and lives under glass in higher latitudes. Its small size and cryptic habits makes it difficult to detect and identify at plant quarantine inspection. The increase in international trade in fresh plant material in recent years is facilitating its continued spread.


Author(s):  
Rafail R. Mukhametzyanov ◽  
◽  
Ana Isabel Fedorchuk Mac-Eachen ◽  
Gulnara K. Dzhancharova ◽  
Nikolay G. Platonovskiy ◽  
...  

The orientation of a part of the population of economically developed countries to a healthy diet, the spread of ideas of vegetarianism, concern for the environment, and relatively higher incomes contributed to an increase in demand for fruits, berries and nuts of tropical and subtropical origin. Some of them, in particular bananas, oranges, tangerines, lemons, have become common food products and practically everyday consumption for the majority of the population of developed countries in the last quarter of the 20th century. In the future, some other types of fresh fruit and berry products from the tropics and subtropics (for example, pineapple, kiwi, avocado) gradually, due to increased production and international trade, also became more economically available to the ordinary consumer. Based on the analysis of statistics from the Food and Agriculture Organization of the United Nations for 1961-2019, the article shows a number of trends in international trade (for exports) of major tropical fruits are reflected, with a deeper look at the participation of Latin American countries in this process. It was revealed that some states of this region, such as Mexico, Ecuador, Guatemala, Costa Rica, Colombia, Honduras, Peru, Brazil, Chile, occupy significant positions in the supply of bananas, pineapple, avocado, mango, papaya to the world market. Currently, Russia is one of the largest countries in the world in terms of imports of fruit and berry products, therefore, the issue of its participation as a subject of demand in the world tropical fruit market is raised.


2017 ◽  
Vol 32 (2) ◽  
pp. 95-103 ◽  
Author(s):  
Marija Saric-Krsmanovic ◽  
Sava Vrbnicanin

Field dodder is a parasitic plant that attaches to stems and leaves of broadleaf plants, including weeds, field crops, vegetables and ornamentals, across most agricultural regions of the world. Effective field dodder control is extremely difficult to achieve due to the nature of attachment and close association between the host and the parasite, which require a highly effective and selective herbicide to destroy the parasite without damaging its host. To establish a strategy for controlling parasite growth and restricting the spread of field dodder in crop fields, it is important to learn more about this weed, its life cycle and development.


2017 ◽  
pp. 114-127 ◽  
Author(s):  
V. Klinov

Causes of upheaval in the distribution of power among large advanced and emerging market economies in the XXI century, especially in industry output and international trade, are a topic of the paper. Problems of employment, financialization and income distribution inequality as consequences of globalization are identified as the most important. Causes of the depressed state of the EU and the eurozone are presented in a detailed review. In this content, PwC forecast of changes in the world economy by 2050, to the author’s view, optimistically provides for wise and diligent economic policy.


Author(s):  
Larysa Nosach ◽  
◽  
Victoria Morgun ◽  

The author's research of the current state and features of the development of the world market for services in conditions of turbulence of world processes was carried; the world leaders of the service sector in the global dimension and leaders of the most dynamic articles of service categories were identified; the share of world exports of services by countries by the level of their economic development was justified; weaknesses in the assessment of indicators of international trade in services were identified; the research is based on UNCTAD statistics.


2021 ◽  
Vol 20 (1) ◽  
pp. 63-79
Author(s):  
Vesa Kilpi ◽  
Tomi Solakivi ◽  
Tuomas Kiiski

AbstractShipping plays an important role in the world, transporting over 80% of international trade and employing over 1.5 million seafarers. The maritime industry, including shipbuilding and equipment manufacturing, is extensive. Both of these interconnected businesses are facing rapid change caused by increasingly speedy technological development and the tightening of environmental regulation. This survey-based research analyzes the current and future competence needs of firms operating in maritime logistics and the maritime industry. The findings indicate that in both contexts, the increasing importance of various general competences is understood and the need is recognized in particular to improve those related to environmental regulation as well as technology and automation. Overall, the gap between current and desired levels of competence is expected to widen. In terms of education, this is likely to affect vocational training and university-level learning differently in that functional competences are emphasized more in the former and social and meta-competences in the latter.


2021 ◽  
pp. 1-16
Author(s):  
Alessandra GUIDA

The international trade in biotech products boosts national economies and advances scientific as well as technology innovation. However, while trading these products increases the spread of benefits on a global scale, it also increases risks to human health and the environment (ie biosafety). This is because the effects of this technology on biosafety are still highly uncertain. Against this background, the judicial bodies under the World Trade Organization (WTO) find themselves in the middle of an intricate and polarised debate in which a proper judicial balance between free trade and biosafety becomes fundamental in order to determine whether requests for ensuring human and environmental health justify trade restrictions. This paper aims to highlight that the WTO is institutionally unready for balancing economic and non-economic values. In suggesting how to rationalise the judicial balance between the competing interests in the context of biotechnology, this paper demonstrates that the judicial adoption of a well-structured proportionality analysis can turn the current balance by chance into a balance by structure.


2008 ◽  
Vol 60 (2) ◽  
pp. 147-188 ◽  
Author(s):  
Olivier Accominotti ◽  
Marc Flandreau

Textbook accounts of the Anglo-French trade agreement of 1860 argue that it heralded the beginning of a liberal trading order. This alleged success holds much interest from a modern policy point of view, for it rested on bilateral negotiations and most-favored-nation clauses. With the help of new data on international trade (the RICardo database), the authors provide empirical evidence and find that the treaty and subsequent network of MFN trade agreements coincided with the end of a period of unilateral liberalization across the world. They also find that it did not contribute to expanding trade at all. This is contrary to a deeply rooted belief among economists, economic historians, and political scientists. The authors draw a number of policy lessons that run counter to the conventional wisdom and raise skepticism toward the ability of bilateralism and MFN arrangements to promote trade liberalization.


Author(s):  
Rafail R. Mukhametzyanov ◽  
◽  
Nikolay G. Platonovskiy ◽  
Akhmed M. Khezhev ◽  
Tatiyana V. Ostapchuk ◽  
...  

In the context of the modern global financial world order, an important element of the stability of the national monetary unit of the overwhelming majority of countries in the world, especially developing countries, is foreign exchange earnings. For some countries with favorable natural and climatic conditions, the production, processing and export of agricultural products plays a significant role in the overall structure of foreign exchange earnings in the country. The constantly increasing demand from consumers for fruits, berries, nuts and their processed products allows economic entities of national fruit and berry subcomplexes to increase the volume of growing and exporting these types of products. This study analyzes the change in the volume of exports and imports of fruit and berry products in value terms for the period 2010-2019. It is revealed that some states, being the largest exporters of fruits, berries, nuts and products of their processing, occupy significant positions in the import of these types of products from abroad. Based on the author’s calculations, the top 30 countries of the world have been compiled in terms of net foreign exchange earnings from international trade in this type of product. According to this indicator, the first line with a level of $ 7.506 billion was occupied by Spain, while it increased it by $ 1.675 billion over 10 years. As for Russia, despite the counter-sanctions against the countries of the European Union and some other countries of the world, as well as the ongoing policy of import substitution, including in domestic gardening, it continues to be one of the main importers of fruits, berries, nuts and their processing products in the world. Thus, our country supports both foreign producers and other commercial structures that carry out the processes of commodity circulation of fruit and berry products, and the receipt of foreign exchange earnings in these powers.


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