Chinese Journal of Entomology (1992) 12, 161-169

M.C. Yao and K.C. Lo (1992)
Insect species and population densities in stored japonica rice in Taiwan
Chinese Journal of Entomology 12 (3), 161-169
Abstract: Thirteen species of insect pests and 3 species of predators were found in stored japonica rice. Pests included 11 coleopteran species, the angoumois grain moth (Sitotroga cerealella), and the book louse (Liposcelis divinatorius). The lesser grain borer (Rhyzopertha dominica), the dominant species, had the highest population density. The rice stored for two months, one year, and two years contained 19.5, 268, and 316 lesser grain borers per kilogram, wihich was 76.9%, 74.9%, and 77%of the total insects collected. In the rice stored for one year, the density of lesser grain bores was the least in mid-Taiwan and highest along east coast. The three predators were Scenopinus fenestralis, Lyclocoris sp. and Chelifer nodosus.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Me-Chi Yao

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
surveys/distribution/isolation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Rhyzopertha dominica	Stored grain	Taiwan
	Sitotroga cerealella	Stored grain	Taiwan
	Liposcelis divinatorius	Stored grain	Taiwan
Scenopinus fenestralis (predator)			Taiwan
Lamprochernes nodosus (predator)			Taiwan