This study was performed to establish the control strategies effectively using Eco-friendly agricultural materials (EFAM) and natural enemy when cultivating autumn-type leaf perilla and to investigate the population densities of seasonal major pests such as Tetranychus urticae (two-spotted spider mite, TSSM), Broad mite (Polyphagotarsonemus latus), Aphis egomae, and Pyrausta panopealis. TSSM showed the occurrence in the seedling stage from August to the end of September and controlled using EFAM in the nursery. Broad mites had a low occurrence in October, December, and the following year showed the density of two or more leaves per leaf from February. Aphis egomae was locally prevented around the area of occurrence, and it showed more than five per leaf in October. Pyrausta panopealis seemed to occur from August to September. Aphis egomae is control using high-toxic EFAM before the overwintering and prevents it from using banker plants planted barley in the winter. Pyrausta panopealis is protected by biological pesticides in August registered in the leaf perilla.

We studies a model for management of pepper anthracnose based covering method and spraying system in field. 1. Among 82 organic fungicides, 42 materials showed most effective inhibition against mycelia growth of the Colletotrichum acutatum in vitro. 23 formulated biocontrol agents were chosen to control the disease from 42 biocontrol agents in greenhouse. In the end, five kinds (2 plant extracts, 2 biopesiticides, 1 Bordeaux mixture) were selected from 23 materials in the field. 2. The mulching materials of bed covering in fruit season were thin non-woven fabric sheet and black plastic. The use of a fabric sheet was reduced the spread of anthracnose as compared to the plastic covering. 3. The application with the chosen materials was reduced 34% of anthracnose for 7 times sprays to planting 70 days as compared to the untreated control. In yield, nonwoven fabric sheet with formulated biopesticides was increased 17% than black plastic. 4. This result indicated that the developed biocontrol strategy could be an effective and economic crop protection system in organic pepper cultivation field.

This study was carried out to development the environment-friendly control method of Myzus persicae using Beauveria bassiana and Environment-friendly agricultural materials (EFAM). Germination rate the dried conidia of B. bassiana was 90 percent at 24-27 ˚C temperature condition. Mortalíty of M. persícae was 56. 7% at 1 X1 07 cfu/ml conidia concentration. Four EFAM such as Pachungtan, Wangjungwang, Newbiodakill, Muginchon were low toxicity to B. bassiana growth. Among them, Muginchon (derris extract) and Wangjungwang (neem extract) could have synergistic effect to aphid mortality when mixing treat with B. bassiana, which protection value was 99% in 3 days after treat.