臺灣南部荔枝毯蟎之發生與防治

Field Studies on Litchi Erineum Mite (Eriophyes litchii Keifer) in Southern Taiwan

溫宏治(H. C. Wen) ； 李錫山(H. S. Lee) ； 林正忠(C. C. Lin)

《中華農業研究》 40卷3期 (1991/09) Pp. 298-304

https://doi.org/10.29951/JARC.199109.0007

摘要

荔枝毯蟎(Eriophyes litchi Keifer)爲荔技上之主要蜱蟎，其爲害致使葉片腫脹並產生絨毛，影響植株發育至鉅。於本省南部荔枝產地調查結果其爲害株率爲11.11~73.85%，平均24.59%。其受害株之年增加率爲32.55%。利用粘蟲板於荔枝園調查毯蟎密度以3月最高，8月次之。荔枝受毯蟎爲害率於5月最高，4月次之，2月最低。毯蟎爲害後，使葉片產生毯毛，毯毛色澤之變化係自嫩葉上深綠色泡狀物（經3~5日後）轉爲銀白色（維持2~3日）、黃褐色（維持2~4日）、紅褐色（維持4~7日）、深褐色（維持8~12日），至老葉時終成黑色。由不同色澤之毯毛比較其含毯蟎數時，則以黃褐色者爲最多，紅褐色者次之，黑色者最少，由此可間接測知年中荔枝毯蟎發生情形。於萌芽前修剪被害枝葉後，每一個月噴施75%硫磺可濕性粉劑一次，連續3次，防治效果優異。

關鍵字

荔枝 ； 荔枝毯蟎 ； 蜱蟎 ； 爲害率 ； 防治

並列摘要

Litchi erineum mite affecting leaflets and inflorescences is a destructive pest on litchi in southern Taiwan. Usually 11.11-73.5%, and 24.59% in average of the plants were infested, the number of infested twigs increased 32.55% on one year.
The sticky plates were used for surveying the moving of the mites in litchi orchard. The resulted revealed that the moving occurred more often in March and in August.
The highest population density of mites was observed on yellowish brown erinea, the next on reddish brown and the least on black. The combined treatment of pruning with spraying of 75% Sulfur WP was the most effective method in preventing Eriophyes litchii from damaging.

並列關鍵字

Litchi ； Litchi erinum mite ； destructive pest ； population density ； pruning with spraying