The present study prepared molybdenum trioxide (MoO3), the most important intermediate of molybdenum metal, by using a fluidized bed reactor for the thermal decomposition of ammonium molybdate (AM) in the presence of an air flow. During the process of fluidizing the sample inside the reactor, the reaction time and temperature were optimized with a close analysis of the X-ray diffraction (XRD) data and with thermogravimetric analysis (TGA). In particular, the temperature level, at which the AM decomposition is completed, is very important as a primary operating parameter. The analysis of the XRD and TGA data showed that the AM decomposition is almost completed at ~350 oC with a reaction time of 30 min. A shorter reaction time of 10 min. required a higher reaction temperature of ~500 oC with the same air flow rate to complete the AM decomposition. A sharp rise in the decomposition efficiency at a temperature ranging between 320 and 350 oC indicated a threshold for the AM decomposition. The operating conditions determined in this study can be used for future scale-ups of the process.

Grapholita molesta occur four times a year and Carposina sasakii occur twice a year, and both pests do damage on stone fruits such as peach, apple, plum, apricot, etc. Grapholita molesta is worldwide distributed in temperate and subtropical areas including South Korea. But, Carposina sasakii distributed in South Korea, Japan, China and Asia, and has been managed as an important import quarantine pest by the authorities of United States, Canada and Taiwan. Forecasting of both pests in Korea is currently done through the investigation of 1,000 fruits per 10 trees (100 fruits / tree) in designated peach orchard. However, this method is very difficult to observe the pest by bagging of peach and require too much time and labor. Therefore, we tried to carry out a new forecasting method by using of sex pheromone traps for newly standardized method as an alternative. Using sex pheromone trap, attractiveness of G. molesta was proved to be 2.5 > 1.5 > 0.5 m by the height and the border => outside > center by the position. Attractiveness of C. sasakii made no difference in height, but, more trapped at the center and border than outside in position at peach orchard.

Anastatus orientalis Yang & Choi, 2015 (Hymenoptera: Eulpelmidae) is reported for the first time from Korea. It is a solitary endo-parasitoid in egg of Licorma delicatula (Hemiptera: Fulgoridae), Which causes damages to many ornamental and fruit trees in Korea. This species would be a good biological agent for suppression of the spotted lanternfly in Korea. More than 40 specimens of this species were collected in Cheonhyeon-dong, Hanam-city and Samsung-dong, Seoul city. This Korea species was compare with that from China in morphlogical characteristics and barcodes region of COI.