ウンシュウミカン園における白色剤散布と光反射シートマルチによるチヤノキイロアザミウマの樹内密度の減少

概要

論文の詳細を見る
Reduction of population density of yellow tea thrips, Scirtothrips dorsalis, on mandarin orange (Citrus unshiu MARC.) trees by application of a 4% aqueous solution of CaCO_3 micro powder (AASC) with/without reflective-sheet mulching (RSM) was examined in 1994. AASC without RSM gave reduced trap catches and thrips population densities on fruits, and resulted in low fruit damage with marketable quality. AASC with RSM gave lower fruit damage than either RSM or AASC alone. AASC increases the spectral reflectance of mandarin orange leaves much more from 400 to 500 nm than from 600 to 700 nm, the leaves turning a bluish color for 48 days. Since reduced trap catches is observed on transparent sticky sheets of a color similar to leaves dipped in 2-4% white solution, the reduced population density of thrips on trees is believed to be influenced by the color of the tree.
日本応用動物昆虫学会の論文
1995-11-25