Section 2
Chapter 1,107

Oviposition preference of the rice weevil, Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae) , for unpolished and polished rice

Arakaki, N.; Takahashi, F.

Japanese Journal of Applied Entomology and Zoology 26(3): 166-171


ISSN/ISBN: 0021-4914
Accession: 001106210

The results are given of studies in Japan on the oviposition preferences of Sitophilus oryzae (L.) among rice grains at different stages of the milling process. The order of decreasing preference was parboiled-unpolished rice > unpolished rice > parboiled-polished rice > polished rice. The degree of preference decreased as the milling intensity increased. The females tended to oviposit on a particular area of the grain (especially the embryo).

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