BACKGROUND Insecticide application is the main way to control Diaphorina citri. However, it causes environmental contamination, has a negative impact on beneficial organisms and leads to psyllid resistance. The essential oil of Piper aduncum has low toxicity towards the environment and contains dillapiol, which has proven to be effective against several crop pests. Here, we studied its efficacy...

Estudos metabólicos envolvendo a incorporação de D-glicose-[1-13C] em folhas de Piper aduncum (Piperaceae) mostraram que as vias do mevalonato (MVA) e da triose-piruvato (MEP) estão envolvidas na biossíntese da unidade isoprênica presente no 2,2-dimetil-2H-1-cromeno-6carboxilato de metila (1) e no 2,2-dimetil-8-(3’-metil-2’-butenil)-2H-1-cromeno-6-carboxilato de metila (2). O padrão de incorpor...

This paper argues that unemployment insurance increases labor productivity by encouraging workers to seek higher productivity jobs, and by encouraging firms to create those jobs. We use a quantitative general equilibrium model to investigate whether this effect is comparable in magnitude to the standard moral hazard effects of unemployment insurance. Our model economy captures the behavior of t...

This paper characterizes the labor supply and borrowing of a household facing collateral requirements that limit its debt and compel it to accumulate equity in its durable goods stock. The household’s discount rate exceeds the market rate of interest, so it would otherwise finance increased current consumption by borrowing against future wages. Collateral constraints generate a positive comovem...

Abstract The aim of this research was to evaluate the survival and growth native tree saplings planted in a drained Mauritia flexuosa palm swamp (vereda) southeastern Brazil, identify suitable species for restoration projects these hygrophilous environments. Total sapling at one-year post-planting 48%. with highest were Croton urucurana, Cecropia pachystachya, Erythroxylum citrifolium, Hirtella...