|Title:||水稻紋枯病之系統性藥劑室內及田間防治試驗||Other Titles:||Greenhouse Study and Field Experimentation on the Control of Sheath Blight of Rice with Systemic Fungicides||Authors:||簡錦忠
|Issue Date:||5-Sep-1972||Publisher:||農業試驗所||Journal Volume:||21||Journal Issue:||3||Start page/Pages:||191-202||Source:||農業研究||Abstract:||
在室內測定幾種藥劑之預防及治療效果，結果以Benlate水和劑每盆400倍液灌注20ml區（每公頃13.2公斤）及10ml （每公頃6.6公斤）區之效果最佳，不過按此施藥量對紋枯病之防治固有效果，但其價格昂貴，在實用上藥劑費用似嫌過高。在預防方面，Tachigaren液劑和Mon乳劑之防治效果略相同；但治療方面 Mebenil水和劑，Tachigaren液劑和Mon乳劑等藥劑，自接種病原菌後施藥愈遲其防治效果愈差。
This experiment is aimed at searching systemic fungicides for control of rice sheath blight in order to solve the problem of the practical difficulties of using fungicides spray.
In greenhouse trials, Benlate W.P. showed the remarkable preventive and therapeutic effect when 20 ml. of 1:400 solution (13.2 Kg/ha) or 10 ml. of 1:400 (6.6 Kg/ha) solution of Benlate were added to the pots, 22 cm in diameter, respectively. However, the application of such fungicide at the rate of 13.2 Kg/ha or 6.6 Kg/ha seems to be too expensive for practical use in controlling the disease.
In preventive effect, Tachigaren Solution and Mon Emulsion were similar in effectiveness of controlling the disease. But in case of therapeutic action, fungicides of Mebenil W.P., Tachigaren Sol. and Mon Emul. showed that the later the application after inoculation of pathogen, the less control effect to the disease.
For the prevention of phytotoxicity, the application of organo-arsenate shouldn’t less than 10 days before heading stage and the rate applied shouldn’t higher than the recommended concentration recorded in the Extension Manual.
Among the four fungicides tested in the field, Benlate W.P. was the best one in controlling the disease either by adding to the field soil or treating the seedling soil. Simultaneously, it also showed the effectiveness in controlling the disease of rice stem rot.
|Appears in Collections:||1.台灣農業研究(1950～迄今)|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.