Produção Nacional
Revisado por pares
The reproductive capacity of Panstrongylus megistus (Hemiptera: Reduviidae) males treated with precocenes
1992; Instituto Oswaldo Cruz, Ministério da Saúde; Volume: 87; Issue: 4 Linguagem: Inglês
10.1590/s0074-02761992000400002
ISSN1678-8060
AutoresVânia M. S. Cavalcante, Lêda Regis,
Tópico(s)Insect-Plant Interactions and Control
ResumoReproductive performance including mating, semen transfer, egg production and hatching rate were investigated in pairs of Panstrongylus megistus in wich the male was treated with either precocene II or ethoxyprecocene II, topically applied shortly after imaginal molt. Eighty percent of the males were not able to mate for a period as long as 40 days after treatment. Those males wich did mate (20%) produced small spermatophores; a few (10%) were unable to transfer spermatozoa to female, while the others (10%) exhibited reproductive performance similar to that of non-treated males. The cumulative effects of the precocene on the different stages of reproduction resulted in a drastic reduction of offspring production. The anti-allatal compound precocene seems to inhibit successful reproduction through a corpus allatum inactivation and subsequent lack of secretory activity of the male accessory glands.
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