行政院農業委員會台南區農業改良場   研究彙報第66號

 

柑橘窄胸天牛誘引產卵陷阱防治效率之探討

張淳淳、黃秀雯 、林明瑩

摘  要

  張淳淳、黃秀雯、林明瑩。2015。柑桔窄胸天牛誘引產卵陷阱防治效率之探討。臺南區農業改良場研究彙報 66:61-67。

柑橘窄胸天牛危害柚樹根系,造成樹勢衰弱,嚴重影響麻豆文旦產業。產卵誘引為近年來新興之防治方式,成效良好,廣為農民採行。本研究探討產卵誘引法之防治效率,2012年柑橘窄胸天牛繁殖季節,於麻豆文旦柚園以圈捲皺摺之報紙與重疊木板等二種陷阱,進行柑橘窄胸天牛誘引產卵試驗。結果顯示雌天牛皆會在兩種陷阱上產卵,而木板處理之文旦樹較報紙處理能誘使雌天牛產下更多卵。進一步比較兩種陷阱上的產卵差異,木板上誘得之卵堆數顯著多於報紙,窄胸天牛於一組木板陷阱上最多可產下8.67堆卵,報紙平均為3.53堆。比較兩種陷阱的單堆卵粒數,木板陷阱所誘得之每堆卵粒數顯著多於報紙陷阱,木板上之單堆卵粒平均為270粒卵,報紙則為182粒卵。總計所有木板上之產卵數為34,114粒,為報紙之總卵數9,631粒之3.5倍。根據試驗結果,木板陷阱成效最佳,操作上的便利性也優於報紙陷阱,為最為推荐之誘引產卵方式。

現有技術:傳統上對於柑橘窄胸天牛之防治,多採燈光誘集、徒手捕捉為主。化學防治受限於害蟲土棲習性,除了對環境衝擊較大,效果也不顯著。

創新內容:本研究比較兩種產卵誘引資材,發現利用木板的整體誘集效果較報紙為佳,使用上不受天候影響,可有效且大量的誘集到雌蟲產卵。

對產業影響:木板陷阱相較於農藥,效果較佳也符合環境永續需求。藉由阻斷害蟲生活史,進而降低田間密度,減少對於柚樹的危害,確保品質,提升農民收益。

關鍵字:柑橘窄胸天牛、麻豆文旦、產卵、陷阱
接受日期:2015年12月18日


Study on the control efficiency of oviposition trap to long-horn beetle Philus antennatus

Chang, C. C., H. W. Huang , M. Y. Lin

Abstract

Long-horned beetles (Philus antennatus) damage the root system and weaken the pomelo tree, make an enormous influence to the Madou wentan. The oviposition trap to Philus antennatus was developed in recent years. It works well and is accepted by the growers. The control efficiency of two oviposition traps to longhorn beetle was examined in a Madou wentan orchard during the reproduction season of Philus antennatus, 2012. The trees were treated with the wood board trap (WBT) and the newsprint paper trap (NPT) respectively. WBT is using two overlapping wood boards lying against the tree trunk and NPT is circling tree branch with crumpled newsprint paper. Result shows female beetles laid eggs in the artificial crack of both traps and more eggs were laid in the WBT than the NPT. Further comparison of the difference of oviposition of 2 traps reveals that the number of egg masses laid on WBT was significantly more than the NPT. Average of 8.67 egg masses per tree treated with WBT and 3.53 egg masses per tree with NPT were collected. The size of each egg mass of 2 traps was analyzed. Average 270 eggs per mass of WBT was significantly more than the 182 eggs per mass of NPT. Total 34114 eggs on WBT were collected during the experiment, which is 3.5 times than the 9631 eggs on NPT. The efficiency of WBT is better. It is also more convenient in operation than the NPT and is recommended to take as the oviposition trap in control of Philus antennatus.

What is already known on this subject?
The conventional methods for controlling of Philus antennatus is light trap and hand catching. Chemical control is restricted and ineffective because of the soil-habitated behavior of larvae. It also causes huge impact to environment.

What are the new findings?
The study compares 2 oviposition traps. The efficiency of wood board trap is better than newsprint paper trap. It works well and makes female beetles lay large numbers of eggs on it no matter the weather condition.

What is the expected impact on this field?
Compared with pesticide, wood board trap is effective and sustainable to the environment. It minimizes the population of Philus antennatus by blocking the life cycle, also reduces the damage of larvae to wentan tree, improves the quality of fruits and increases farmer's profits.

Key words: Philus antennatus, Madou wentan, oviposition, trap
Accepted for publication: December 18, 2015


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