The Population Density and Life History of the Tea Red Spider

スポンサーリンク

概要

• 論文の詳細を見る

• 1. The tea red spider (Tetranychus japonicvs HOTTA) is the most common pest of the tea plant in Japan, and during the spring months, it is found in great number, causing much damage. In this paper, an account of its population density and life-history in the field is given.<BR>2. From April 1952 to March 1953, the tea leaves were sampled every five days, and the number of spider was counted separately on every stage.<BR>3. During one year, there occurred two peaks of population density, one in spring and the. other in autumn. In the former season, it was higher than in the latter.<BR>4. The period of total life-cycle observed in the field was different from that in the laboratory and in the former case, it had no correlation with the air temperature.

• 日本茶業技術協会の論文

著者

• 刑部 勝

  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)
• 荒廢した茶園におけるアカダニの棲息密度について
• Biological Notes on the Tea Small Tortrix (Adoxophyes Privatana WALKER) (Part 3):Distribution of the Tea Small Tortrix on Tea Garden
• Ecological Study on the Tea Red Spider Mite (Part 5):On the Hibernation
• The Resistance of Phrixolepia sericea BUTLER at Different Larval Stages to DDT Emulsion
• The Controlling Experiments on the Mulberry Scale (Pseudaulacaspis pentagona TARGIONI TOZZETTI) (Part 1):Spraying and Fumigation Trials
• The Occurrence Period of Tea Small Tortrix Larvae
• The Population Density and Life History of the Tea Red Spider
• The Controling Experiments on the Mulberry Scale (Pseudaulacaspis pentagona TARGIONI TOZZETTI) (Part 2) Gas Dispersion of Cyanide Fumigation in the Sheet Covered on the Tea Bushes

スポンサーリンク