幾種殺菌劑對薄荷白粉病防除之效果
Other Title
The Effectiveness of Certain Fungicides for the Control of Mint Powdery Mildew (Erysiphe Cichoracearum Dc.)
Journal
農業研究
Journal Volume
14
Journal Issue
1
Start Page
56
End Page
61
Date Issued
1965-03-07
Date
1965-03-07
Author(s)
吳福壽
F.S. Wu
Abstract
本試驗係檢討數種殺菌劑對薄荷白粉病之防治效果，本年度曾供試六種殺菌劑，所得之結果概述如下：
1. 在白粉病發生之地，薄荷因藥劑之撒佈與無撒佈之間，其差異極顯著。
2. 供試之六種殺菌劑，大體言之均有防病效果，惟Dithane S-31，Suzu Tablet兩種均稍有誘致藥害之缺點。
3. 供試藥劑中防病效果最卓著者為Dithane M-22之1:200稀釋液，其他藥劑間之差異極為顯著，但除KB-90，Ruston等之效果較差外，均較無撒佈區為佳。
4. 在實際上應用時，當以Dithane M-22之1:200稀釋液最為可取。
5. 各藥劑對產量之影響，仍待進一步之研究。
The mint powdery mildew was a destructive disease next to mint rust, found in many fields of the mint growing areas in this Island. This experiment was aimed to clarify the effectiveness of six fungicides for control of the mint powdery mildew. Six fungicides, namely, Dithane Z-78, Dithane M-22, Dithane S-31, Suzu Tablet, KB-90, and Ruston, were tested in this experiment. The fungicides were sprayed before the disease infected. The results of the experiment were shown as follows:
1. There were highly significant differences between the fungicides sprayed and unsprayed areas of the mint field where the powdery mildew was infected.
2.. The six fungicides tested, gave more or less effectiveness for control of the disease, however, Dithane S-31 and Suzu Tablet caused slight phytotoxic to the leaves after application.
3. The best disease control was obtained with Dithane M-22 at the concen-tration of 1:200. There were highly significant differences among the rest of the fungicides, except KB-90 and Ruston gave some effectiveness in controlling the disease.
4. Practically, Dithane M-22 (1:200) was adaptable for control of mint powdery mildew.
5. The effect of the fungicides on the yield of the mint, need more advanced study.
Publisher
農業試驗所
Type
journal article
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