• 펄프종이기술
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• 제39권3호
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• pp.60-69
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• 2007

This study developed rice packaging paper with exterminating performance against rice weevils such as Tenebroides mauritanicus and Sitophilus oryzae. The exterminating performance of packaging paper was given by treatment of garlic extractives and pine-leaf powder, respectively. For the exterminating test, rice weevils were put in petri dish containing non-treated packaging paper and functional packaging paper for twenty days. Right after being put in the petri dish, the rice weevils moved fast toward the area in the non-treated paper escaping from that in the functional paper. The lethality of the rice weevils on the functional paper reached over 50 per cent. The physical properties of the functional packaging paper were rarely changed in spite of treatment of the exterminating agents.

• 펄프종이기술
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• 제45권2호
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• pp.41-45
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• 2013

Extractives of garlic (Allium scorodorpasum) and green pepper (Capsicum annuum L.) were used to prevent and exterminate rice weevils which contaminate stored rice. The extractives exhibited great efficacy against Sitophilus oryzae and Tribolium castaneum by annihilating all the weevils contained in a bottle. Furthermore, kraft paper coated by 5% extractives also displayed good effectiveness against the rice weevils. When rice weevils were stored with rice in a sack made of extractives-coated kraft paper, the number of living insects was sharply decreased according to elapsed time. In particular, 1,4-benzoquinone, which is very harmful to human, was detected from rice contaminated by Sitophilus oryzae and Tribolium castaneum through the analysis of GC/MS.