草苺主要蟲害之友善管理

Abstract

有策略地運用生物天敵、植物油混方等資材，可有效且友善地管理草苺的主要蟲害。前者是在園區附近栽植天敵食餌的寄主植物與補充食物，進行天敵保育，期與蟲害之間形成高的同步性與動態平衡。後者，是以200~300 倍植物油混方水稀釋液浸漬種苗1 秒，去除苗植體上大部份的棉蚜(Aphis gossypii Glover)、二點葉蟎等(Tetranychus urticae Koch) 等小體型害蟲。定植後噴佈同濃度之植物油混方防除此二種蟲；再配合懸掛黃色黏紙與土面鋪放印楝粕等，防除臺灣花薊馬(Frankliniella intonsa (Trybom) 與小黃薊馬(Scirtothrips dorsalis Hood)。由此可擺脫化學合成農藥的倚賴。 The strategic application of materials such as natural enemies and Plant Oil Mixture (POM) can effectively and friendly manage the key arthropod pests of strawberry. The former is to plant host plants and supplementary food plants for natural enemies victims near the field that to be natural enemies conservation. And then a high degree of synchronization and dynamic balance between natural enemies and pests will be expected. The latter, seedlings were immersed in POM with 200-300 times water dilution for 1 second to remove most of small-sized pests such as cotton aphid (Aphis gossypii Glover), twospotted spider mites (Tetranychus urticae Koch), etc.. After planting, spray with the same concentration of POM to control above two pests; and combined with hanging yellow sticky papers and laying neem cake on soil surface for control the eastern flower thrips (Frankliniella intonsa (Trybom) and yellow tea thrips (Scirtothrips dorsalis Hood) . Thus can get rid of the reliece on chemically synthesized pesticides.