Attractant for Rice Weevil, Sitophilus zeamais MOTSCHULSKY (Coleoptera : Rhynchophoridae), from Rice Grains : I Bioassay Method for the Attractancy of Rice Grains to Rice Weevils
- 1 January 1969
- journal article
- Published by Japanese Society of Applied Entomology & Zoology in Applied Entomology and Zoology
- Vol. 4 (1) , 23-31
- https://doi.org/10.1303/aez.4.23
Abstract
In search of the attractant in rice grains for rice weevils, an olfactometer was devised. That was a modified CHAMBERLAIN'S cage type olfactometer and suitable for bioassay for the attractancy of rice grains and the extract of fractions from the rice grains. The bioassay was conducted at 25-30°C under darkness and 14-16% relative humidity, with 50 rice weevils that had been starved and cut water supply for 2 days prior to the test. This method gave good results for detecting the presence of attractive material in the sample.Keywords
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