茶園病蟲害防治與管理-茶樹通風

Grass in tea garden

茶樹的葉冠下方, 常常因為通風不佳, 日照也不易穿透, 導致枝幹上容易滋生髮絲病菌 [1].

通風不良也容易助長蟲害, 如盲椿象及粉蝨 [2-7]. 對農友來說, 一直是很頭痛的病蟲害. 適當的修剪茶樹, 讓樹形呈現類似V字型, 增加茶樹間通風的區域, 會有所助益. 此外, 茶樹間的雜草若太靠近樹幹, 應拔除乾淨. 其他地方則以不影響茶樹的狀況之下留下, 以維持茶園生態多樣性, 以利自然生態平衡.

Horse hair blight

對抗髮絲病菌, 除了要保持通風良好之外, 還需要將帶原的枝條集中並在茶園以外的地方燒毀, 避免病害蔓延. 必要時, 每半年可用火燄燒除茶叢間之髮狀病菌索, 但切勿過度而燒傷茶樹 [1].

-Research team @ 茶水部 LittoTea, 澄萃茶藝.

 

Venting in a Tea Garden

The venting condition in the branches area is poor. The sunlight is blocked by the leaves above. It creates a great environment for the growth of horse hair blight, tea mosquitos and citrus spiny white fly [1-7]. They are always a big headache for farmers. Appropriate tea trimming is required to enhance the venting in a tea garden. The bushes in V shape make the best venting condition. Moreover, the grass  close to the roots and branches should be removed. The rest of them should be preserved for natural eco system building.

Fighting with the horse hair blight needs a good management in the tea garden. All the ill branches should be collected and burned away from the tea garden to prevent other bushes from further infection. If necessary, the flame can be applied every 6 months. Do not hurt the tea bushes due to the overheating [1].

-Research team @ 茶水部 LittoTea, 澄萃茶藝.

 

2. 角盲椿象 http://web.tari.gov.tw/techcd/特作/茶樹/蟲害/茶樹-角盲椿象.htm

3. 角盲椿象 http://blog.littotea.com/2015/10/18/i-want-you-helopeltis-fasciaticollis-poppius/

4. 奎寧角盲椿象 https://kmweb.coa.gov.tw/techCD/作物病蟲害與肥培管理技術資料/特作/茶樹/蟲害/茶樹-奎寧角盲椿象.htm

Alvin Lin

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