Momordica charantia is therophyte vine plants. It is called natural insulin and contains carantine and vitamin C and so on. Momordica charantia is one of the representative subtropical crops as a functional crop, showing efficacy on improvement of diabetes, cancer, abdominal obesity and improvement of hypertension. According to climate change, Momordica charantia is growing cultivation area, but there is still insufficient research for insect pest occurrence and insecticides. Due to the lack of proper control measures, the damage caused by insect pests is increasing as the year goes by. This study was conducted to investigate the occurrence and damage of insect pests in Momordica charantia and utilize it as basic data for development of insect pest control technology. As a result, 5 orders of 13 species of insect pests were investicated. Among them, Aphis gossypii, Frankliniella intonsa, and Frankliniella occidentalis showed high density. In particular, Aphis gossypii showed the highest density in mid-May, also Frankliniella intonsa and Frankliniella occidentalis showed high density in the middle of June. The leaf damage caused by the larvae of Palpita indica was observed in late June. After mid July, the biginning of the high temperature period, the insect pest density decreased, but the damages caused by moths were severe.

Pleurotus eryngii is one of the most commercially important mushrooms cultivated in Korea. However, the shelf-life of the fruiting body is short, limiting its export. A new hybrid strain H17 of P. eryngii was developed to extend the shelf-life by mono-mono crossing between monokaryotic strains derived from DanBi and KNR2774. Although the cultivation period of H17 was slightly longer than that of the reference cultivar Kenneutari No.2, the quality did not change and remained normal after a period of 65.0 days at 4°C. This result was significantly different from that of the reference cultivar Kenneutari No.2. Analysis of the genetic characteristics of the new hybrid strain H17 revealed a different profile from that of the parental and reference cultivars when random amplification of polymorphic DNA (RAPD) primers was used. These results demonstrate that H17 is a new cultivar with improved storability after harvesting.