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Abstract(s)
Na presente nota, descreve-se o ciclo de vida de Popillia japonica Newman, na Ilha Terceira.
A emergência inicia-se na última semana de Maio. A população atinge o pico no início de Agosto e decresce até meados de Outubro.
O 1.º estado larvar é curto. O 2.º é muito variável, 1 a 5 meses, enquanto que o 3.º estado é o mais longo, entre 6 a 8 meses. O estado de pupa não vai além de 1 mês.
São ainda referidos a alimentação dos diversos estados do escaravelho japonês e a mortalidade verificada durante o inverno, em áreas acima dos 300m.
Anota-se ainda a presença de algumas larvas parasitadas por Metarhizium anisopliae (Metch.) Sorokin.
ABSTRACT: In this paper the life cycle of Popillia japonica Newman in Terceira Island is described. The first adults appear in the last week of May, reach its peak in early August and disappear in middle October. The 1st instar larvae don't last long. The 2nd instar has a life span between 1 and 5 months. The 3rd instar is the one that lasts longer, about 6 to 8 months. The pupae stage is short, less than 1 month. Notes are given on the food habits of adults and larvae. In what concerns the natural enemies, only some larvae were found momified with the green muscardine fungus.
ABSTRACT: In this paper the life cycle of Popillia japonica Newman in Terceira Island is described. The first adults appear in the last week of May, reach its peak in early August and disappear in middle October. The 1st instar larvae don't last long. The 2nd instar has a life span between 1 and 5 months. The 3rd instar is the one that lasts longer, about 6 to 8 months. The pupae stage is short, less than 1 month. Notes are given on the food habits of adults and larvae. In what concerns the natural enemies, only some larvae were found momified with the green muscardine fungus.
Description
Keywords
Japanese beetle Popillia japonica Life cycle Natural e~Enemies Terceira Island Azores
Pedagogical Context
Citation
SIMÕES, N. & A. MARTINS (1985). Life cycle of Popillia japonica Newman (Coleoptera, Scarabaeidae) on Terceira Island - Azores. "Arquipélago, Série Ciências da Natureza", 6: 173-179.
Publisher
Universidade dos Açores