本試驗於臺灣主要茭白筍栽培地區調查病蟲害發生種類，並於南投縣埔里地區針對主要病蟲害之田間發生消長進行為期兩年 (2000~2001 年 ) 的調查。調查結果顯示，茭白筍栽培期間有 6 種真菌性病害，及 1 種細菌與真菌複合感染的新病害 — 基腐病。害蟲有 13 種，分別屬於 5 目 9 科，以及 1 種軟體動物福壽螺。其中以銹病、胡麻葉枯病、基腐病、葉緣枯病、長綠飛蝨及稻薊馬等最為常見，並造成嚴重的危害。銹病於育苗期即開始發病， 3~5 月達到高峰期。胡麻葉枯病於 4 月下旬開始發病， 5 月中旬至採收末期為嚴重罹病期。基腐病為調查期間發現的茭白筍新病害，於 6~7 月間為罹病高峰。葉緣枯病於 3 月下旬開始發病， 4 月及 8~9 月為罹病高峰期。長綠飛蝨的棲群密度於 3 月中旬起，開始緩緩增加， 5 月中旬達到高峰期，而後持續到採收末期。稻薊馬於 4~5 月及 7~8 月各有一個高峰期。此外，本文中亦針對移植本田初期之矮化症作一描述。

關鍵字： 茭白筍、病蟲害、消長。

　　 Surveys the diseases and pests on water bamboo (Zizania latifolia Turcz.) in major cultivated areas of Taiwan. Besides, a majority of diseases and pests occurring annually on water bamboo was investigated from 2000 to 2001 at Puli area, Natou Hsien, in central Taiwan. There were six fungal diseases and one new disease caused by bacterial and fungal complex. 13 species of insects belonged to five orders and nine families, and one species of mollusk, golden apple snail (Pomacea canaliculata Lamarck) was recorded. Among them, the rust (Uromyces coronatus P. Henn.), the brown leaf spot (Bipolaris zizaniae Nishikado), the basal rot (Enterobacter cloacae andPythiogeton sp. complex), the leaf marginal blight (Septoria sp.), the greenslender planthopper (Saccharosydne procerus Matsumura) and the rice thrip (Baliothrips biformis Bagnall) were more common and caused serious injuries. The rust disease caused by U. coronatus occurred in the seedling period and became severe in March and May. The brown leaf spot caused by B. zizaniae becomming in late-April and gradually caused serious injury in mid-May up to late harvest. The basal rot disease caused by E. cloacae andPythiogeton sp. was the most serious disease in June and July. The leaf marginal blight was showed up in late-March and its incidence had two peaks in April and from August to September. The greenslender planthopper, S. procerus, peaked from mid-May to end of harvest. The rice thrip, B.biformis, had two peaks in one year. One peak was from April to May, another one from July to August. Otherwise, it was made a description about the stunting syndrome occurring in the pre-seedling period.

Key words: Zizania latifolia Turcz., diseases and pests, occurrence.