Transmissão transovariana de Babesia bovis em Boophilus microplus: obtenção de cepa de carrapato livre de Babesia spp.

Acaricide resistance mechanisms in Rhipicephalus (Boophilus) microplus Mecanismos de resistência aos acaricidas em Rhipicephalus (Boophilus) microplus

Acaricide resistance has become widespread in countries where cattle ticks, Rhipicephalus (Boophilus) microplus, are a problem. Resistance arises through genetic changes in a cattle tick population that causes modifications to the target site, increased metabolism or sequestration of the acaricide, or reduced ability of the acaricide to penetrate through the outer protective layers of the tick’...

Adoção de Software Livre em Universidades Brasileiras

Description de formes schizogoniques de Babesia bigemina. Comparaison avec des formes identiques, decrites par E. Dschunkowsky, 1937, sous le nom Lushia bovis

Perspectives for the use of plant extracts to control the cattle tick Rhipicephalus (Boophilus) microplus Perspectivas para o uso de extratos de plantas para o controle do carrapato de bovinos Rhipicephalus (Boophilus) microplus

The evolution of resistance of Rhipicephalus (Boophilus) microplus to synthetic acaricides has given rise to the need for new scientific investigations on alternative ways to control this tick. In this regard, various studies on plants have been developed in an attempt to find extracts with acaricidal properties. Evaluations on plant extracts for controlling R. (B.) microplus have grown intense...

Utilização de Imagens de Sensoriamento Remoto de Alta Resolução para Realizar a Contagem de Copas em Povoamento de Eucalyptus spp

The present work aims at performing automatic tree crown counting in planted Eucalypt forests. High resolution remote sensing imagery and digital image processing using Lee Filters and the unsupervised classification algorithm ISODATA were used. The classification result that best extracted tree crowns was exported to a GIS for tree counting. The resulting number of trees was compared to the nu...