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Start Over Author "Hwang Yong Kim" Journal entomological research
2 results on '"Hwang Yong Kim"'

1. Occurrence of cotton aphids (Aphis gossypii) and lady beetles (Hamonia axyridis) onHibiscus syriacusLinne: Are the aphids a pest of cucurbits?

Author

Hwang-Yong Kim, Yong-Heon Kim, and Jeong‐Hwan Kim

Subjects
Aphid, biology, media_common.quotation_subject, medicine.disease_cause, biology.organism_classification, Predation, Agronomy, Insect Science, Aphis gossypii, Infestation, medicine, Hibiscus syriacus, PEST analysis, Reproduction, Predator, media_common
Abstract

Populations of cotton aphid on Hibiscus syriacus increased rapidly from 17 to 24 May 2007, and then decreased as its predator, the lady beetle Hamonia axyridis, increased in number. There was a 10 day time lag between peak populations of aphids and lady beetles. The infestation of aphids on H. syriacus produced some damage, but H. syriacus recovered soon after the lady beetles arrived. Cotton aphid clones from H. syriacus were transferred to other summer host plants: to five different vegetables on two dates, and to cucumber on three dates. Apart from one case where reproduction occurred on eggplant, most H. syriacus aphid clones did not survive on the vegetables. The cotton aphid on H. syriancus was prey and a food source for H. axyridis and acted to conserve natural enemies.

Published
2008
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2. Occurrence of cotton aphids ( Aphis gossypii) and lady beetles ( Hamonia axyridis) on Hibiscus syriacus Linne: Are the aphids a pest of cucurbits?

Author

Yong-Heon KIM, Hwang-Yong KIM, and Jeong-Hwan KIM

Subjects
*COTTON aphid, *LADYBUGS, *ROSE of Sharon, *CUCURBITACEAE, *VEGETABLE diseases & pests
Abstract

Populations of cotton aphid on Hibiscus syriacus increased rapidly from 17 to 24 May 2007, and then decreased as its predator, the lady beetle Hamonia axyridis, increased in number. There was a 10 day time lag between peak populations of aphids and lady beetles. The infestation of aphids on H. syriacus produced some damage, but H. syriacus recovered soon after the lady beetles arrived. Cotton aphid clones from H. syriacus were transferred to other summer host plants: to five different vegetables on two dates, and to cucumber on three dates. Apart from one case where reproduction occurred on eggplant, most H. syriacus aphid clones did not survive on the vegetables. The cotton aphid on H. syriancus was prey and a food source for H. axyridis and acted to conserve natural enemies. [ABSTRACT FROM AUTHOR]

Published
2008
Full Text
View/download PDF

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