Portal de Periódicos da CAPES

Artigo Acesso aberto Produção Nacional Revisado por pares

BIBTEX RIS

Comportamento e ecologia de fêmeas ingurgitadas do carrapato Boophilus microplus em pastagem de Brachiaria decumbens no Brasil

2001; UNIVERSIDADE DE SÃO PAULO; Volume: 38; Issue: 4 Linguagem: Inglês

10.1590/s1413-95962001000400008

1678-4456

A. C. de S. Chagas, John Furlong, Cristiane Barbuda Nascimento,

Insect and Pesticide Research

The Boophilus microplus tick poses great economic and cattle health problems that causes annual costs of one billion dollars in Brazil. The current study sought to investigate preoviposition stage of B. microplus in natural conditions. A total of 300 engorged female ticks were used, in each of the Winter of 1998 and the Summer of 1998/1999, at the Embrapa Gado de Leite, Juiz de Fora, MG, Brazil. On cloudy and humid days, engorged female traveled very little, while at temperatures of less than 15oC and relative humidity of 95%, they were practically stationary. They did not travel at night or during rainfall. They traveled in a similar way in the Winter and in the Summer, laying almost the same amount of eggs (being 0.12 g and 0.11 g, respectively).