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The production of pome fruit trees (apples and pears) constitutes a socio-economic activity of great importance for Argentina, Chile and Uruguay. The “apple moth” Cydia pomonella (L.) (Lepidoptera: Tortricidae), an exotic pest for the region, constitutes one of the most frequent limitations for the production of this fruit crop. The strategies tried so far to minimize the negative impact of th...

As the best lands in southern South America turn to agriculture, ranching is limited to less suitable lands in which natural vegetation (grasslands and shrubs) is the main forage resource. This project proposes the development of general knowledge and technologies for a more efficient and sustainable livestock use of the natural vegetation of the three most important livestock regions in southern ...

In the agricultural-livestock systems of Argentina, Chile and Uruguay, alfalfa participates in a high percentage of the cultivation area. It has been repeatedly cited that this species can maintain and even recover the nitrogen level of the soils where it grows. However, this statement could be true only if alfalfa is correctly associated with specific strains of high-efficiency rhizobia, capable ...

The avocado represents an item of high strategic value in the agricultural development initiatives of the Dominican Republic. This is due to the commercialization potential of the fruit in the markets of the United States, and the comparative advantages that the country presents in terms of geographical location in relation to other producing countries. In regional terms, the country could join Ch...

 Tree tomato cultivation and processing was promoted in the high Andean region where its importance is asymmetric, with greater importance in Colombia and Ecuador which have field collections and seed banks. Genetic improvement was addressed through germplasm collection and conservation, to increase productivity and promote value-added agro-industrial processes. Work was done on the planting mate...

The guava is a species of tropical origin that develops in various agroecosystems of the Colombian-Venezuelan Andes from sea level to 1,800 meters above sea level. Currently, a large proportion of the fruit is produced wild in silvo-pastoral systems, through the work of small producers who contribute more than 80% of the family workforce where women play a leading role. In Colombia and Venezuela t...

The yield of five cultivars per country under zero tillage and conventional tillage was compared. The planting method had a differentiated effect, within the conditions of each locality, causing different production levels. In general, there was a trend towards higher yields under zero tillage compared to conventional tillage, with the former likely to improve soil moisture use efficiency. No effe...

Bioinsecticides were formulated from entomopathogenic fungi isolated from infected white flies. Thirty-four fungal isolates were collected, including the genera Beauveria and Paecilomyces.  A selection of the isolates were compared in whitefly virulence tests with fungal strains from the genebank and differences in the ability to infect and kill B. tabaci were observed. Mortality caused by Paecil...

The costs associated with infectious diseases in aquaculture can be very high, and seriously affect the profits of the activity, and even the subsistence of companies and sources of work. A disease outbreak, depending on the crop, the species and the pathology, can end up causing losses of 10 to 50% in biomass in a single outbreak. Or worse still, the appearance of a devastating disease, such as t...