| dc.description.abstract | 東方果實蠅 (Bactrocera dorsalis (Hendel)) 為台灣果樹栽培的首要害蟲，高屏地區檬果的主要產季接續於其他幾種重要經濟果樹之後，更是深受其害。高雄區農業改良場研發長效型果實蠅誘殺器可改善此果實蠅的為害情形，再藉由其區域防治策略之推動，逐年降低其於檬果栽培區的族群密度，加上適時應用套袋保護果實避免受害。其次，小黃薊馬 (Scirtothrips dorsalis Hood) 為害檬果歷史已久，尤以近年來其族群密度於開花期及幼果期具大幅升高之趨勢，並已嚴重影響果實的產量與品質。田間測試各種不同顏色黏板的誘捕效率，發現顏色對誘捕蟲數之差異與其反射光譜及相對反射率間有密切相關性，刻正進一步探討顏色黏板於田間監測或防治應用的實用性。另外，鱗翅目昆蟲亦為檬果栽培期間常見的害蟲種類，田間試驗探討應用燈光誘捕器做為偵測此類害蟲之發生、監測族群密度動態或直接應用於防治之可行性。目前，針對此三大類害蟲研擬田間監測與可行應用的防治資材，配合加強田間衛生管理工作的宣導，協助農友在合理使用農藥外，綜合應用各種耕作技術，達到提升田間控管此等害蟲之效能，生產更安全及更具國際競爭力之果品。
This investigation examines the integrated pest management (IPM) strategies targeting three major threats to mangos in southern Taiwan. The first pest, the oriental fruit fly, Bactrocera dorsalis (Hendel), is the most destructive pest to fruit production in Taiwan. The mango season generally follows the seasons of several other fruits important to the Taiwanese economy. As a result, the oriental fruit fly is particularly prevalent during mango season and has significantly reduced mango production in the Kaohsiung-Pintung area. To reduce the infestation of this widespread pest, a special long-lasting trap was developed and applied in combination with fruit bagging techniques. Since the implementation of this area-wide fruit fly management, the population density of B. dorsalis in mango growing areas has gradually decreased. The second pest, the small yellow thrips, Scirtothrips dorsalis Hood, is another common pest associated with mangos in the southern region. Recently, the population density of S. dorsalis, has increased greatly during flowering and young-fruit stages, causing a marked reduction in the yield and quality of mangos. Field tests on trapping efficiency showed that variations in the numbers of insects caught by sticky boards of various colors are closely related to their reflection spectra and relative reflectivity. The practical field application of colored sticky boards to the monitoring and control of this pest is currently being evaluated. The third pest, the lepidopteran insect, is also typically observed during the mango season. Light traps are being field tested to assess their effectiveness in detecting and monitoring occurrence and population dynamics of these insects. The feasibility of applying light traps for their control is also being assessed. In summary, continuous efforts have been made to develop more efficient monitoring systems and control techniques. The population of the oriental fruit fly, small yellow thrip, and the lepidopteran species can be effectively controlled by diverse measures including detection and monitoring of insects, farm sanitation, pesticide application, and non-pesticide techniques. A highly efficient IPM system will help farmers produce safer and higher quality fruits with more competitive prices. | en_US |
