Japanese Journal of Applied Entomology and Zoology (2005) 49, 251-254

Masatoshi Hori, Yuko Araki, Wataru Sugeno, Yoshitaka Usui and Kazuhiro Matsuda (2005)
[Luteolin 7-O-glucoside in hozuki leaves, Physalis alkekengi, is involved in feeding stimulation in Epilachna vigintioctopunctata]
Japanese Journal of Applied Entomology and Zoology 49 (4), 251-254
Abstract: Hozuki, Physalis alkekengi, is one of the host plants of the twenty eight-spotted ladybird, Epilachna vigintioctopunctata. We investigated feeding stimulants for E. vigintioctopunctata in hozuki leaves. The methanol extract of hozuki leaves and its chloroform-soluble fraction stimulated feeding of the adult beetle. Although the butanol-soluble and water-soluble fractions were inactive by themselves, the butanol-soluble fraction or the deposit formed during concentration of this fraction acted synergistically with the water-soluble fraction. The deposit was identified as luteolin 7-O-glucoside. This compound is considered to be one of the factors in hozuki that induce feeding in E. vigintioctopunctata.
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(original language: Japanese)
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Database assignments for author(s): Masatoshi Hori

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Henosepilachna vigintioctopunctata		Japan
	Physalis alkekengii (weed)		Japan