Keragaman Populasi Liriomyza Spp. (Diptera:Agromyzidae) Serta Tingkat Parasitisasi Parasitoidnya Pada Tanaman Tomat (Solanum Lycopersicum) Dan Kentang (Solanum Tuberosum) Di Kabupaten Karo, Sumatera Utara

Abstract

Leafminer (Liriomyza spp.) are polyphagous pests that attack a variety plants, making the population of this pest is hard to control in some areas. However the information about leafminer’s spesies that attack on Karo Regency and the level of the parasitization is very minimum. This research is aimed to find out about that information on tomato and potato plants. This research was conducted from September to December 2024 in Berastagi District, Simpang Empat District, and Merdeka District at an altitude of 1200-1500 masl. This research using purposive sampling methods on three fields in each commodities. Each field samples were taken of leaves attacked by Liriomyza spp. which is total 100 samples using diagonal sampling methods, the samples maintained at Plant Pests and Disease Laboratory of IP2SIP Berastagi using plastic containers. Next, the adult of Liriomyza spp. and its parasitoids that emerged were identified by their morphological characters at Plant Pathology Laboratory Faculty of Agriculture, University of Sumatera Utara. The results based on morphological characters showed that there were three species of Liriomyza spp. associated with tomato, namely L. sativae (167) , L. huidobrensis (15), dan L. bryoniae (6). On potato plants L. huidobrensis (63) and L. sativae (63). Parasitoids associated with Liriomyza spp. on tomato plants are Hemiptarsenus (34), Neochrysocharis (5), dan Opius (1) and Opius (4) on potato plants.