Psyllids are small sap sucking insects with generally very narrow host plant ranges. Some of them are pests that cause major economic losses in agriculture, on ornamental plants and in forestry. They damage the plants by directly removing large quantities of sap or by the transmitting diseases. The chemical control of red gum lerp psyllids in eucalypt plantations in Brazil, for instance, costs millions of reais per year due to intensive use of insecticides. Another example is the transmission of

Status: Completed     Start date: Fri Mar 01 00:00:00 GMT-03:00 2013

The project aimed to assess the forms of land use and forest degradation processes in the Amazon, by reconstructing the history of degradation in three municipalities (Paragominas and Santarém – PA and Feliz Natal – MT). In these municipalities, the socio-environmental aspects of forest degradation, related to changes in land use and coverage, were analyzed (pasture, agriculture, secondary use, logging, etc.), along with data produced by research partner networks and the vast literature already ...

Status: Completed     Start date: Sun Dec 01 00:00:00 GMT-03:00 2013

Ecological alternatives may contribute to the attainment of sustainability of productive family units through the balanced use of natural resources in the Amazon. Among these viable alternatives, stand out in the Amazon the initiatives of land preparation without the use of fire, such as the Tipitamba Project, the Roça without Fires Project, Agroforest Systems and agroecological alternatives practiced by the region's farmers. The availability of knowledge and practices through the training of en ...

Status: Completed     Start date: Tue Mar 01 00:00:00 GMT-03:00 2011

This project aims to increase the adoption of fruit fly management practices for agricultural communities in Uganda, a country on the African continent. The proposal came about due to the observance of damage and economic losses in orchards in Uganda, caused by fruit flies, especially Bactrocera dorsalis, which stems from the low use of efficient management techniques. Although the infestation is lower in farmers' orchards that use management techniques such as toxic baits, methyl euge

Status: Completed     Start date: Mon Aug 01 00:00:00 GMT-03:00 2016

The spittlebug, Mahanarva spectabilis, causes two types of injury to forage crops. The nymphs constantly suck the sap, causing the whole plant to yellow. The other type of damage is caused by the adult spittlebug, which feeds on shoot, leaves and sprouts, causing a phytotoxic response that varies among grass species used in pastures. Given the impact of this insect on forage crops, it is important to understand how global changes may influence its ecology and thus assess whether future i ...

Status: Completed     Start date: Wed Dec 01 00:00:00 GMT-03:00 2010

Spittlebug, Mahanarva spectabilis (Hemiptera: Cercopidae) is capable to cause drastic losses in production and quality of pastures established with grasses. Currently, the use a grass resistant cultivar, to be obtained by means of constitutive antibiosis, is the best spittlebug controlling method. However, the time required for releasing a cultivar after detecting a spittlebug-resistant strain is relatively long. Allied to this, one should take into consideration that the adaptations of

Status: Completed     Start date: Mon Jun 01 00:00:00 GMT-03:00 2015

In last the two decades, the melon agribusiness in Brazil has expanded nine times, reaching a production that is estimated at 500,000 tons per year and is concentrated in the Northeast. Since 2007, melons have become the main national fruit in volume of exports, and in 2008 Brazil was the second top world exporter. Nearly all melon cultivars planted in the Northeast are imported, and hence there is demand for more adapted ones, as the cultivars available were generally developed in soil and clim

Status: Completed     Start date: Sun Apr 01 00:00:00 GMT-03:00 2012

This project aims at the preventive development of genetic stocks resistant to quarantine organisms (pests and diseases that do not yet exist in Brazil) of high risk for Brazilian agriculture in order to reduce the economic, social and environmental impact of their eventual entry into the country. A program of preventive genetic improvement depends on partnership with research institutions from other countries so that quarantine organisms can be studied safely. This project is based on an establ

Status: Completed     Start date: Tue Sep 01 00:00:00 GMT-03:00 2015

A few years ago the carmine cochineal was introduced in the Northeast of Brazil, and its population slowly expanded across the forage cactus plantations of that region. With the occurrence of suitable growth conditions during the drought of 2012, such scale insect reached the condition of pest, and decimated or compromised the productivity of thousands of hectares of forage cactus. It is interesting to note that the long period without drought influenced farmers to neglect the renovation of thei

Status: Completed     Start date: Thu Jan 01 00:00:00 GMT-03:00 2015

The limited knowledge concerning the diversity of species of fruit fly species (Diptera: Tephritidae), on top of the reduced number of researchers working on this biological group in the Amazon region, has motivated the structuring of the Amazonian Network of Fruit Fly Research, a project financed by Embrapa (Call 05/2006 - "Agrofuturo"; SEG code 02.06.05.003), for the period of 36 months (August/2007 to July/2010). The Network has Embrapa Amapá as executing institution and gathers researcher

Status: Completed     Start date: Fri Apr 01 00:00:00 GMT-03:00 2011