Ginger is generally consumed as food or medicine in Korea and mostly imported from China. During quarantine inspection,genus of nematodes, Meloidogyne spp. and Pratylenchus spp., are mainly detected and regulated under the procedure ofquarantine in Korea. We tested the susceptibility and mortality rates of Meloidogyne spp., which are infected in ginger,against a fumigant, Ethanedinitrile (EDN). Juveniles of the nematode showed 100 % mortality against EDN at 2.5 mg/Lfor 2 h at 13°C, meanwhile, egg mass showed 0 % hatching at 5 mg/L for 2 h at 13°C. A concentration × time product(CTP) was determined as 7.24 ghm-3. Under the 35% filling rate of ginger in cold chamber, 100% mortality was observedin both juveniles and eggs at 50 mg/L for 2 h at 13°C. At that condition, CTP was determined as 14.12 ghm-3. Basedon this study, EDN fumigation will be effectively apply to control of nematodes.

Wood pellets are used by Biomass-solid refuse fuel (Bio-SRF) has been imported from many East-Asia countries especially,Vietnam in Korea. Wood pellets are made through grind and high-pressure process shows different physical characterizationlike high methyl bromide (MB) absorption unlike other wood materials. Furthermore, detected pests in wood pellets havesimilarity with detected pests in stored grain. In this study, we analyzed susceptibility on pupa and adult stages of redflour beetle, Tribolium castaneum in wood pellets against mixture of MB and phosphine (PH3). Mixture treatment ofMB and PH3 was more effective than single MB treatment compare with control. Pupal stage showed more tolerant thanadult stage on each fumigant and 100% mortality was determined at 27 mg/L of MB only at 20°C. However, PH3 increasedMB toxicity on pupae that 100% mortality was observed at 100:1 ratio of MB (5 mg/L) and PH3 (0.05 mg/L) at 20°C.Based on this study, mixture treatment of different type of fumigant will be applied to control of quarantine pests.