UJI BEBERAPA DOSIS MINYAK SERAI WANGI (Cymbopogon nardus L.) SEBAGAI ATRAKTAN HAMA LALAT BUAH (Bactrocera sp) PADA TANAMAN JERUK SIAM (Citrus nobilis Lour.)

Abstract

Siamese orange (Citrus nobilis Lour) is a horticultural plant having the main pest, the fruit fly Bactrocera sp. The solution is eviromentally friendly control is the use of trap combined with the attractant of lemongrass (Cymbopogon nardus L.). The purpose of this study is to get the dosage of lemongrass oil which is ablest to trap most fruit fly on citrus plants. This research was conducted at Desa Kuok Kecamatan Kuok Kabupaten Kampar and at Riau University Faculty of Agriculture Laboratory of Plant Pests, from September to November in 2020. The treatment of the given dosage of lemongrass oil was 0,125 ml per trap, 0,250 ml per trap, 0,375 ml per trap, 0,500 ml per trap, and 0,625 ml per trap. The experiment used a complete randomized design with 5 treatments and 4 repetitions. The result showed that the species that attacks the citrus plant is B. carambolae, B. papaye dan B. umbrosa. The ablest dosage of lemongrass oil in trapping most fruit fly was 0,625 ml trap with an average population of 18,5 fruit flies for seven days.

Keywords

• fruit fly (bactrocera sp.)
• citrus nobilis lour
• lemongrass oil (cymbopogon nardus l.)
• attractant
• dosage.