Efeito da aplicação de inseticidas na floração da macieira sobre Apis mellifera L. (Hymenoptera: Apidae).

Os inseticidas Bacillus thuringiensis (Dipel 100mL.100L-1) e Novaluron (Rimon 100 CE 40 ml.100L-1) são registrados para o controle de Lepidoptera na cultura da macieira. O objetivo deste trabalho foi avaliar o efeito da aplicação destes inseticidas no período de floração da macieira sobre Apis mellifera. O experimento foi conduzido na safra 2014/2015 em Fraiburgo, SC, utilizando pomares de macieira com 5 hectares

Avaliação econômica dos sistemas de produção de morango: convencional, integrado e orgânico.

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Caracterização Agronômica da Amoreira-preta Cultivada no Sul do Estado do Paraná.

bitstream/CPACT-2010/12912/1/documento-271.pd

Controle de pássaros e insetos frugívoros e manutenção da qualidade da uva com uso de tela.

A incidência de pássaros frugívoros, como o tico-tico (Zonotrichia capensis), o azulinho (Cyanoloxla glacocaerulea), o sabiá (Turdus rufiventris rufiventris), entre outros, em vinhedos Comerciais da região do Alto Vale do Rio do Peixe é um problema permanente para os viticultores Estas aves, além de ocasionar danos diretos às uvas, potencializam o ataque de insetos (principalmente abelhas e vespas), os quais encontram no resíduo do suco extravasado pelo rompimento da baga, uma importante fonte alimentar num período de escassez de recursos..Resumo

The VISCACHA survey -- V. Rejuvenating three faint SMC clusters

We present the analysis of three faint clusters of the Small Magellanic Cloud RZ82, HW42 and RZ158. We employed the SOAR telescope instrument SAM with adaptive optics, allowing us to reach to V~23-24 mag, unprecedentedly, a depth sufficient to measure ages of up to about 10-12Gyr. All three clusters are resolved to their centres, and the resulting colour-magnitude diagrams (CMDs) allow us to derive ages of 3.9, 2.6, and 4.8Gyr respectively. These results are significantly younger than previous determinations (7.1, 5.0, and 8.3Gyr, respectively), based on integrated photometry or shallower CMDs. We rule out older ages for these clusters based on deep photometry and statistical isochrone fitting. We also estimate metallicities for the three clusters of [Fe/H]=-0.68, -0.57 and -0.90, respectively. These updated ages and metallicities are in good agreement with the age-metallicity relation for the bulk of SMC clusters. Total cluster masses ranging from ~7-11x10^3Mo were estimated from integrated flux, consistent with masses estimated for other SMC clusters of similar ages. These results reduce the number of SMC clusters known to be older than about 5 Gyr and highlight the need of deep and spatially resolved photometry to determine accurate ages for older, low-luminosity SMC star clusters.Comment: Accepted for publication as MNRAS letter, 5 pages, 5 figure

Social Enterprise in Europe: At the Crossroads of Market, Public Policies and Third Sector

Peer reviewe

Mass wasting triggered by seasonal CO₂ sublimation under Martian atmospheric conditions: Laboratory experiments

Sublimation is a recognized process by which planetary landscapes can be modified. However, interpretation of whether sublimation is involved in downslope movements on Mars and other bodies is restricted by a lack of empirical data to constrain this mechanism of sediment transport and its influence on landform morphology. Here we present the first set of laboratory experiments under Martian atmospheric conditions which demonstrate that the sublimation of CO2 ice from within the sediment body can trigger failure of unconsolidated, regolith slopes and can measurably alter the landscape. Previous theoretical studies required CO2 slab ice for movements, but we find that only frost is required. Hence, sediment transport by CO2 sublimation could be more widely applicable (in space and time) on Mars than previously thought. This supports recent work suggesting CO2 sublimation could be responsible for recent modification in Martian gullies

Recomendação de calagem a adubação na cultura da videira americana cultivada em Santa Catarina.

Este trabalho apresenta as recomendações de calagem e adubação para a cultura da videira.Editores: Luciélio Manoel da Silva; Paulo Guilherme Salvador Wadt; Karina Thais Lima Buriti; Elaine Almeida Delarmelinda Honoré; Marcos Gervasio Pereira