전라북도는 곤충사육농가의 77%인 121농가가 흰점박이꽃무지를 사육하고 있고 농가수의 증가가 예상됨에 따라, 생산단가를 절감시키면서 효율적인 사육을 위해서는 사육환경을 최적으로 유지하는 것이 매우 중요하다. 따라서 본 연구에서는 뽕나무발효톱밥을 이용하여 유충사육밀도에 따른 유충발육상황을 조사하였다. 최적 사육밀도 설정을 위하여 전라북도 사육농가에서 가장 많이 사용하는 20L 크기의 사육 상자에 각각 100, 125, 150, 175, 200마리 흰점박이꽃무지 유충을 넣고 뽕나무발효톱밥을 2/3정도 채운 후 사육하면서 유충무게변화, 생존율 등을 조사하였다. 부화 후 95일 흰점박이꽃무지 유충 생존율은 평균 81%로 사육밀도별 큰 차이가 없었다. 유충 무게는 100마리/20L 사육 시 2.219g로 가장 높게 나타났으며, 사육밀도가 증가함에 따라 감소하는 경향으로 나타났다. 유충 영양성분 조사결과 단백질 52.8g/100g, 지방 11.8g/100g이었으며, 중금속은 검출되지 않았다.

This study was conducted to evaluate the time required to sell Protaetia brevitarsis larvae when larvae fed on three kinds of fermented berries sawdust, such as mulberry, raspberry, and blueberry. The first instar larvae were reared in a plastic container(543x363x188mm) with designated feeds, and investigated the cumulative proportion of larvae more than 2.5g at rearing room regulated at 25±1℃ with 50~60% under 16:8(L:D). When we reared larvae for about 45 days with fermented blueberry sawdust, the cumulative proportion of larvae with more than 2.5g was over 70%. It was about 40 days shorter than fermented oak sawdust. For each group, the average survival rates of larvae at the possible time for sale were 72~93%.

In order to develop the D. adamsi breeding technique that is highly likely to be used as an emotional pet insect, the results of the D. adamsi was collected in the large exhibition Jang Tae-san in Daejeon to the indoor breeding began to spawn after 10 days after the training, the egg laying period was 33.6 days, the average number of spawn per female was 27.7, and the period was 11.8 days. D. adamsi larvae bred with food of oak-boiled molted two times, the duration of 1st larvae development was 11.8 days, 2nd larvae 14.5 days, and the third larvae was 29.4, and the larvae were used to build houses using Masato(soil) and in the pupae, and then in April of the following year. D. adamsi has a characteristic to build a house with fallen leaves and spawn one or two eggs in the fallen leaves, and the results of the spawn mat test using fallen leaves, leaf mold and a sawdust, etc., and the number of spawn was high in the Masato was spread about 3 ~ 5cm, and a fallen leaves on a 10 cm or so, and the growth and survival rate of the larvae were also high. Larvae breeding density was 2 ~ 3 ℓ in the container size to raise the object was normal growth, the higher the density mortality was high and the growth was sluggish. Larvae feeding conditions were normally developed in dry fallen leaves and fermented fallen leaves, compared to the sterile fallen leaves, oak sawdust, sterile fallen leaves and oak sawdust was abnormal, the mortality rate was higher than 50%.

The mulberry for production of mulberry fruit, found the damage and quantity according to the level of damage by the A. mori, and through regression analysis, we set up a economic injury level. The level of damage by A. mori was to be artificially adjusted, for 2 percent, 5%, 8 percent, and 11 percent of leaf damage. Investigate, From May 31 to June 14, they compared the damage to each damage level and the growth and development and quantity. The survey found that the more damage level, the more severe the damage. The ratio of damage fruit was 5.1 percent, 11 percent, 13.2 percent, 23.9 percent, respectively. And the quantity was reduced by about 33% from 11 percent to 2,387 g/tree compared to the 2 percent to 3,557 g/tree. There's no difference in the damage caused by the sclerotium disease, and the growth and development, such as the length of the tree, the length of the branches, and the thickness of branches. The relationship between the damage level and the ratio of damage fruit was able to obtain relations with the linear regression, Y = 2.129552 X +0.569663(R2 = 0.98). It's the result of an analysis, which analyzed the damage level's relationship with the ratio of damage fruit have a high correlation rate. Therefore, It’s about the ratio of the quantity losses is 5 percent, the ratio of damage leaf is 2.08 percent. If the ratio of damage leaf is more than 2.08 percent, the damage will be required the control. It is judged.

잎브로콜리에 심각한 피해를 주는 배추좀나방의 적절한 방제시기 설정을 위한 기초자료로 이용하기 위하여 유충접종밀도와 잎브로콜리 피 해량의 관계를 분석하여 경제적피해허용수준과 요방제 수준을 설정한 결과는 다음과 같다. 배추좀나방 3~4령 유충을 주당 0, 0.5, 1.0, 1.5, 2.0 마리를 5월 24일에 접종하고, 6월 1일, 6월 9일, 6월 18일에 발생밀도와 엽수량을 조사한 결과, 초기 접종밀도가 증가할수록 배추좀나방의 발생 밀도는 증가하였고 시간이 경과할수록 엽수량은 감소하였다. 이를 토대로 배추좀나방의 접종밀도와 수량감소율을 회귀식을 이용하여 분석한 결 과 y=1636-394x (R 2 =0.79***)로 추정되었다. 잎브로콜리에서 5% 피해율을 경제적 피해한도로 볼 때 배추좀나방의 경제적피해허용수준은 10 주당 2~3마리이고, 요방제 수준은 10주당 1-2마리 수준으로 추정된다.

Entomopathogenic fungi infect some arthropod pest and have been used for biological control. Some entomopathogenic fungi have high potential in insect pest management worldwide, and most of researches were given to Hypocreales order of Ascomycota, but little in Zygomycota, such as Entomophthorales in our country. We have identified some species belonging to Entomophthorales and investigated cultural features and ecology of Entomophaga aulicae. E. aulicae in sweet potato fields, where Aedia leucomelas was a dominant pest, had caused epizootics from 2002–2005. E. aulicae-infected A. leucomelas larva were mostly found from August to October and its occurrence was significantly related to the precipitation. E. aulicae were mainly observed in dead A. leucomelas larval populations (infection rate = 41.3% in 2002), rather than other lepidopteran pests. E. aulicae was morphologically and genetically identified and its virulence was characterized in laboratory conditions. Additionally, pest infection by Zoophthora radicans, Neozygites floridana and some Entomophthorales have been identified. On the basis with this information, we need research to predict the prevalence and to develop biological control agent using Entomophthorales including E. aulicae that contribute to regulation of host populations.

This study was conducted for establishment of Economic injury levels(EILs) of the tea red spider mite, Tetranychus kanzawai on Rubus coreanus. T. kanzawai was innoculated on May 7 in differently 0, 5, 10, 20 and 40 adults per plant. And pesticide was treated in late April, early May, middle May and late May, respectively. After inoculated of T. kanzawai, the density was increased until the mid-June and decreased gradually in all plots. And higher inoculation density were increased higher than lower inoculation density. Growth variables were not different among experimental plots except number of fruit set, but the number of fruit set and yields were decreased with increasing initial mite density. Densities of T. kanzawai on treated time of pesticide was lower in later treatment time than early treatment time. The late April treatments were not effective of pesticide in harvesting season. The rates of yield loss increased with increasing initial mite density. The relationship between initial T. kanzawai densities and yield losses was well described by a linear regression, Y = 0.6545X + 3.0425, R2=0.9313. Based on the relationship, the number of adults per plant which can cause 5% loss of yield was estimated to be approximately 3.0. And EILs was estimated to be approximately 8.3 adults/leaf in mid-May.

“Cheongsun-OmiJa”, a new cultivar of Schisandraceae vine (Schisandra chinensis Baillon) was developed at Jinan Medicinal Herbs Experiment Station, Jeollabuk-do Agricultural Research and Extension Services in 2002. Collections was made on local lines from