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국립수목원 열대식물자원연구센터 내 열대 식물 2종에 발생한 가루깍지벌레와 점박이응애에 대한 천적 적용 효과
Biological Control of Pseudococcus comstocki on Phyllanthus acidus and Tetranychus urticae on Acalypha wilkesiana using Beneficial Insects in Tropical Plants Resources Research Center of Korea National Arboretum
pp.193-199
This study were performed in Tropical Plant Resources Research Center of Korea National Arboretum, Pocheon, Korea to assess the effects of beneficial insects against Pseudococcus comstocki (Kuwana) on Phyllanthus acidus (Linnaeus) Skeels and Tetranychus urticae Koch on Acalypha wilkesiana Muell Arg. We investigated the density of leaf-feeding P. comstocki at intervals of approximately 2 weeks and T. urticae at intervals of approximately 1 weeks after introducing their natural enemies; Chrysoperla nipponensis (Okamoto) and Phytoseiulus persimilis Athias-Henriot. The densities of P. comstocki were suppressed 80.0% (after 4 weeks) and 97.5% (after 8 weeks) after introducing C. nipponensis. The densities of T. urticae were suppressed 84.1% (after 4 weeks) and 99.6% (after 6 weeks) after introducing P. persimilis.
