Ecological Studies of the Mulberry Scale (Pseudaulacaspis pentagona TARGIONI TOZZETTI) on the Tea Plant

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概要

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• The life-history and the habit of the mulberry scale were studied. This species has come to inflict severe damage on the tea plant after the II War. It is polyphagous, attacking tea, mulberry, peach, pear, plum, kaki, cherry and other 22 species of plants.<BR>Normally 3 generations were repeated in a year, sometimes 4 generations observed in the laboratory. The female overwintered in adult and laid eggs in May. One female laid 50-100 eggs. 174 in maximum. The eggs in respective generations hatched out in May, July, and September-October, after 1-2-weeks' incubation. It took about for 5-6 weeks in one generation.<BR>The hatching happened in eaeh plucking season, this coincidence made the distribution of the nymphs wider.<BR>The mass production of this insect was tested with potato and squash, better results were obtained with squash than potato.

• 日本茶業技術協会の論文

著者

• 南川 仁博

  農林省東海近畿業農試験場茶業部

• 久保田 幸弘

  農林省東海近畿農業試験場茶業部

• 吉田 正義

  農林省東海近畿農業試験場茶業部

関連論文

• 殺虫剤散布による茶葉の薬害について (第1報)
• Biological Notes on the Tea Small Tortrix (Adoxophyes Privatana WALKER) (Part 3):Distribution of the Tea Small Tortrix on Tea Garden
• Ecological Studies of the Mulberry Scale (Pseudaulacaspis pentagona TARGIONI TOZZETTI) on the Tea Plant
• The Controlling Experiments on the Mulberry Scale (Pseudaulacaspis pentagona TARGIONI TOZZETTI) (Part 1):Spraying and Fumigation Trials

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