The susceptibility of Dermanyssus gallinae adults, collected from poultry farm in 5 regions and acaricidal activity for D. gallinae from plant was investigated. The susceptibility of poultry farms in Yeoncheon and Anseong to acaricide was investigated high, however the other three areas (Gyeongju, C...
The susceptibility of Dermanyssus gallinae adults, collected from poultry farm in 5 regions and acaricidal activity for D. gallinae from plant was investigated. The susceptibility of poultry farms in Yeoncheon and Anseong to acaricide was investigated high, however the other three areas (Gyeongju, Chilgok, Geumsan), the susceptibility was dfferent activities to acaricides. Clothianidin, thiamethoxam, fenitrothion, formic acid with pyridaben showed difference activity among 5 regions, should be selected with caution. However carbaryl and catrtap hydrochloride, dichlorvos, and bifenthrin showed highly acaricidal activity in all regions, could be used in most of these regions. To control D. gallinae, It is necessary to avoid the indiscriminate acaricide, and to use alternate acaricide.
The acaricidal activities of Cnidium officinale were examined using spray bioassay against the adult of D. gallinae. The C. officinale extract showed 100% acaricidal activity after 48 h treatment at a concentration 4,000 ppm. The C. officinale extract showed 100% acaricidal activity after 48 h treatment at a concentration 4,000 ppm. Acaricidal substance from C. officinale was partitioned and purification with solvent fraction, silica gel open column chromatography, HPLC (high-performance liquid chromatography). Then using GC-MS, molecular weight was investigated. Structure of acaricidal substance was analyzed as (Z)-ligustilide (C12H14O2) with 190.1 molecular weight. Acaricidal activity of (Z)-ligsutilide and C. officinale methanol extract was investigated by contact, fumigation, contact bioassay, then spray method showed highly activities. C. officinale methanol extract showed acaricidal activity in 3 bioassay method, but (Z)-ligustilide showed acaricidal activity only fumigation method. Bifenthrin showed highly acaricidal activity among (Z)-ligustilide, C. officinale methanol extract, and 3 commercial acaricide (bifenthrin, cypermethrin, spinosad). The activity of butylidenephthalide was 2.3-fold higher than C. officinale methanol extract. These results suggest that C. officinale derived material can be used for the development of a control agent for D. gallinae.
The susceptibility of Dermanyssus gallinae adults, collected from poultry farm in 5 regions and acaricidal activity for D. gallinae from plant was investigated. The susceptibility of poultry farms in Yeoncheon and Anseong to acaricide was investigated high, however the other three areas (Gyeongju, Chilgok, Geumsan), the susceptibility was dfferent activities to acaricides. Clothianidin, thiamethoxam, fenitrothion, formic acid with pyridaben showed difference activity among 5 regions, should be selected with caution. However carbaryl and catrtap hydrochloride, dichlorvos, and bifenthrin showed highly acaricidal activity in all regions, could be used in most of these regions. To control D. gallinae, It is necessary to avoid the indiscriminate acaricide, and to use alternate acaricide.
The acaricidal activities of Cnidium officinale were examined using spray bioassay against the adult of D. gallinae. The C. officinale extract showed 100% acaricidal activity after 48 h treatment at a concentration 4,000 ppm. The C. officinale extract showed 100% acaricidal activity after 48 h treatment at a concentration 4,000 ppm. Acaricidal substance from C. officinale was partitioned and purification with solvent fraction, silica gel open column chromatography, HPLC (high-performance liquid chromatography). Then using GC-MS, molecular weight was investigated. Structure of acaricidal substance was analyzed as (Z)-ligustilide (C12H14O2) with 190.1 molecular weight. Acaricidal activity of (Z)-ligsutilide and C. officinale methanol extract was investigated by contact, fumigation, contact bioassay, then spray method showed highly activities. C. officinale methanol extract showed acaricidal activity in 3 bioassay method, but (Z)-ligustilide showed acaricidal activity only fumigation method. Bifenthrin showed highly acaricidal activity among (Z)-ligustilide, C. officinale methanol extract, and 3 commercial acaricide (bifenthrin, cypermethrin, spinosad). The activity of butylidenephthalide was 2.3-fold higher than C. officinale methanol extract. These results suggest that C. officinale derived material can be used for the development of a control agent for D. gallinae.
주제어
#닭진드기 천궁 약제 감수성 Dermanyssus gallinae Cnidium officinale Acaricidal activity
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