臺灣為害經濟植物之葉蟎種類及12種殺蟎劑對二種主要葉蟎之毒性測試

Abstract

1991~1993年調查臺灣為害平地主要經濟植物葉蟎，共發現九種，常見者有七種。以神澤氏葉蟎(Tetranychus kanzawai Kishida)出現頻率最高，為害植物種類最多；其次為二點葉蟎(T. urticae Koch)；偽二點葉蟎之出現頻率、為害植物數及分布均與赤葉蟎相當，重要性顯較習知者為高；柑桔葉蟎(Panonychus citri(McGregor))因一般未取樣山坡地作物而出現頻率偏低；荔枝葉蟎(Oligonychus litchi Lo et Ho)及皮氏葉蟎(T. picrcei McGregor)之出現頻率較前五種葉蟎為低。The survey on the spider mites infesting economic plant in Taiwan during 1991-1993 recorded nine species, with seven species appeared frequently. Tetranychus kanzawai Kishida was most commonly found, and infested more hosts than the others, followed by T. urticae Koch. T. truncatus Ehara was comparable to T. cinnabarinus (Boisduval) in the frequency of occurrence, the number of host plant, and the range of geographical distribution. Its importance was obviously under-estimated in the past.