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KMID : 0613820030130020150
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Journal of Life Science
2003 Volume.13 No. 2 p.150 ~ p.153
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Control Effect of New Developed Insecticide on Two Spotted Spider Mite (Tetranychus urticae Koch) Collected from Commercial Roses
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Park Hyun-Chul
Choi In-Soo
Kang Jeom-Soon
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Abstract
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To determine the effect of newly developed insecticide on two spotted spider mite, Tetranychus Urticae, populations, ten leaf discs were sprayed with three different concentrations (0.5%, 1.0%, and 1.5%) of the tested insecticide solution, and with a water-sprayed control. The tested insecticide solution was toxic to adult female and immature of two spotted spider mite, but was relatively non-toxic to eggs. For equivalent concentrations, more adult females were killed than immature stages. There was no marked difference between the hatch of treated and untreated eggs, although a weak trend between the numbers of unhatched eggs and the insecticide concentration after 7 days is shown.
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KEYWORD
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Two spotted spider mite, Tetranychus urticae, mititicide, mite control
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