...Comprehensive pest control requires tasks such as estimating pest density and grasping its dynamics, analyzing damage, evaluating the economic level of crops, and evaluating the incorporation of new control methods. Pesticides should also be used to the maximum extent possible to make maximum use of the natural control mechanisms of pest populations, and should only be used temporarily when pest damage exceeds the tolerable level of economic damage to crops. The advantage of integrated ecosystem management is that it slows the development of resistance caused by the excessive use of pesticides. ... *Some of the terminology that refers to "natural control" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…害虫の総合防除のためには,害虫密度の推定と動態の掌握,被害解析,作物の経済水準の評価,新防除手段の組入れ評価などの作業が必要である。殺虫剤の使用も害虫個体数の自然制御natural control機構を最大限利用し,害虫の加害が作物の経済的損害の許容水準以上になる時だけ一時的に使用する。生態系の総合管理による利点は,殺虫剤多用による抵抗性の発達を遅らせることにある。… ※「natural control」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
A newspaper published in Japan in which English is...
…Due to the above circumstances, what has come in...
Herbaceous semi-shrub of the Araceae family. It r...
A Mesolithic culture found in the northern half o...
Year of death: September 12, 1921 Year of birth: 2...
1906-1981 A Buraku liberation activist from the T...
A Spanish guitarist. He revived the classical guit...
Various rights that shareholders have based on th...
…It has a high sprouting ability and forms second...
...The causative bacteria was previously consider...
...the basic ideas that the founders and managers...
A device in automobiles that automatically changes...
…In 282 BC, the Macedonian Philetairos became rul...
A military commander in the Tohoku region at the ...
British medieval historian. After graduating from ...