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김상수,백채훈,유상선 順天大學校 1998 論文集 Vol.17 No.1
감나무애응애의 생활사를 27℃에서 조사한 결과, 난기간은 11.1일, 유충기간 6.9일, 전약충기간 5.6일, 후약충기간 8.0일이었다. 성충수명에서 산란전기간은 5.3일, 산란기간 18.3일, 산란후기간은 14.3일이었다. 평균 산란수는 15.4개, 성비는 1.2 : 1(암 : 수)이었다. 감나무애응애의 내적자연증가율은 0.0484, 개체군 배가기간은 14.3로 나타났다. 감나무애응애의 혼합태에 대한 약제효과 시험에서 azocyclotin 25WP, chinomethionat 25WP의 효과가 매우 우수하였으며, flufenoxuron 5DC, tetradifon+pirimiphosmethyl 33EC, hexythiazox 10WP, abamectin 1.8EC의 약효도 기대되었다. The life history of Tenuipalpus zhizhilashviliae was investigated at 27℃. The average durations of egg, larval, protonymphal and deutonymphal stages were 11.1 , 6.9, 5.6 and 8.0 days, respectively. The periods of preoviposition, oviposition and postoviposition were 5.3, 18.3 and 14.3 days, respectively. The average eggs laid by female was 15.4 and the sex-ratio was 1.2 : 1(female : male). The intrinsic rate of increase and population doubling time of Tenuipalpus zhizhilashviliae were 0.0484 and 14.3 days, respectively. As a result of chemical control, azocyclotin 25WP and chinomethionat 25WP were good effective against mixed developmental stages of Tenuipalpus zhizhilashviliae, followed by flufenoxuron 5DC, tetradifon+pirimiphosmethyl 33EC, hexythiazox 10WP, and abamectin 1.8EC.
김상수,백채훈,유상선 順天大學校 1998 論文集 Vol.17 No.1
점박이응애에 대한 몇가지 살비제의 약효를 검정한 결과, 실내시험에서 S-1283의 50, 100ppm과 hexythiazox는 난, 유충과 전약충 등의 발육태에는 매우 우수한 효과가 있었으나 성충태에 대해서는 상당히 낮은 약효를 나타내었다. S-1283+fenpropathrin, chlorfenapyr+flufenoxuron, azocyclotin과 tebufenpyrad는 점박이응애의 모든 태에 대하여 우수한 약효가 있었다. S-1283과 hexythiazox 처리에서 생존한 자성충들의 부화율은 큰 폭으로 감소되었으나, 산란수에 있어서는 유의차가 인정되지 않았다. 포는 S-1283과 S-1283+fenpropathrin의 약효가 가장 우수했으며, tebufenpyrad, chlorfenapyr+flufenoxuron, azocyclotin, 과 hexythiazox의 효과도 기대되었다. Acaricidal activity of some acaricides on twospotted spider mite, Tetranychus urticae, was evaluated in laboratory and field studies. In a laboratory study, S-1283 and hexythiazox were highly effective against immature stages, but ineffective to adults. S-1283+fenpropathrin, chlorfenapyr+flufenoxuron, azocyclotin, and tebufenpyrad were effective against all stages of T. urticae. In adult females treated with S-1283 and hexythiazox, we observed substantial reduction in egg hatchability but there was no significant difference on number of eggs laid. As a result of field study, S-1283 and S-1283+fenpropathrin were the most effective on mixed developmental stages of T. urticae, followed by tebufenpyrad, chlorfenapyr+flufenoxuron, azocyclotin, hexythiazox.
Chae-Hoon Paik,Geon-Hwi Lee,Si-Hyuk Choi,Tae-Hwan Noh,Hyeong-Kwon Shim 한국응용곤충학회 2011 한국응용곤충학회 학술대회논문집 Vol.2011 No.05
The insecticidal effect for several commercially available environment friendly agricultural materials (EFAMs) is investigated to Cnaphalocrocis medinalis, Narana aenescens, Pseudaletia unipuncta and Parnara guttata on rice. In the insecticidal effects for 2-3rd instar larvae of lepidopteran after treatment with 19 EFAMs, more than 95% of mortality rate showed 5 EFAMs in C. medinalis, 12 EFAMs in N. aenescens, 9 EFAMs in P. unipuncta, and 14 EFAMs in P. guttata, respectively. Among 4 EFAMs selected for C. medinalis in indoor, more than 70% in control effect is seen EFAM-B(85.2%), EFAM-I(79.1%) and EFAM-M (78.3%), respectively, in rice field. The insecticidal effect for EFAMs is investigated to Nilaparvata lugens, Laodelphax striatellus and Nephotettix cincticeps on rice. In the insecticidal effects for 2-3rd nymph and adult after treatment with 19 EFAMs, more than 95% of mortality rate showed 5 EFAMs in N. lugens adult, 7 EFAMs in N. lugens nymph, 6 EFAMs in L. striatellus, and 5 EFAMs in N. cincticeps, respectively. Insecticidal effect for N. lugens was sustained until 10 day in rice treated with 7 EFAMs selected in indoor. Among them, EFAM-L, EFAM-P and EFAM-R was sustained in low density until 27 day. But EFAM-D, EFAM-L, EFAM-N and EFAM-S showed high density until 27 day and additional control was needed.
Natural enemy utilization technology for environment-friendly strawberry production in greenhouse
Chae Hoon Paik,Hong Hyun Park,Jeong Hwan Kim,Meeja Seo,Dagyeong Jeong,In Hong Jeong,Min Hyeuk Lee,Gwan Seok Lee 한국응용곤충학회 2023 한국응용곤충학회 학술대회논문집 Vol.2023 No.10
2022년 10월부터 2023년 5월까지 친환경 딸기재배 농가에서 점박이응애는 칠레이리애응애와 사막이리응애, 진딧물은 콜레마니진디벌을 대상으로 하는 천적처리구와 유기농자재를 사용하는 관행방제구에서 천적의 해 충 밀도억제 효과를 조사하였다. 천적처리구에서 점박이응애 성충 밀도는 잎당 1.5마리 이하, 알은 4개 이하로 관리되었고, 사막이리응애는 잎당 최대 0.4마리까지 증가하여 점박이응애 밀도억제에 많은 영향을 미친것으로 보인다. 반면, 관행방제구에서 점박이응애 밀도는 천적 방사구에 비하여 오히려 많은 발생량을 보였지만, 3월 9일부터는 사막이리응애의 증가와 유기농자재의 효과로 점박이응애 밀도는 급격하게 감소하였다. 진딧물 천적 처리구에서 진딧물 밀도는 1월부터 발생하였으며 3월 상순에 잎당 0.3마리까지 증가하였으나 이후 감소하였고, 콜레마니진디벌은 진딧물 발생이 많지 않아 3.9마리/㎡(2회) 방사하는 데 그쳤다. 한편, 관행방제구 포장의 진딧 물은 유기농자재의 영향으로 거의 발생하지 않았다.
Synthesis of Insect Pheromone: (Z)-3-dodecenyl acetate
Junheon Kim,Chae-Hoon Paik 한국응용곤충학회 2011 한국응용곤충학회 학술대회논문집 Vol.2011 No.05
Monoalkenyl acetates are used as one of lepidopteran pheromone components. However, (Z)-3-alkenylacetate as pheromone components is rarely known. Among them, (Z)-3-dodecenylacetate is used as pheromone components of Aproaerema anthyllidella and Tecia solanivora. Recently, (Z)-3-dodecenylacetate was identified as one of pheromone components for an insect pest in Korea (unpublisheddata). For the demand of development of mating disruption against thepest, large amount of (Z)-3-dodecenylacetate (Z3-C12Ac) was needed. Here, we reported the synthetic procedures for (Z)-3-decenylacetate (Z3-C12AC). The Grignard reagent from 1-decyne and ethyl magnesium bromide was reacted with ethylene oxide in dry tetrahydrofuran (THF). Thus synthesized 3-dodecyn-1-ol was reduced to (Z)-3-dodecen-1-ol (Z3-C12OH) by hydrogenation over Lindlar’s catalyst. The alcohol was acetylated to desired (Z)-3-dodecenylacetate (Z3-12Ac) with acetic anhydride by general procedures. The yield was 62.6% through the all procedures. Thepurity was 98.0% (by GC-MS). The isomeric purity was >99% (by NMR).
Population density of Insect Pests and Natural enemies in the Rice Field
Geon-Hwi Lee,Chae-Hoon Paik,Tae-Hwan Noh,Hyeong-Kwon Shim 한국응용곤충학회 2011 한국응용곤충학회 학술대회논문집 Vol.2011 No.05
Biological control of rice insect pest is an important component of an IPM program. There are many species of natural enemies which contribute to the suppression of rice pest populations below economic injury levels. In order to use biological control more efficiently, it is a need to identify beneficial species and determine their roles in possible regulation of insect pests. There is a rich complex of biological control agents in rice and bund. This research was carried out to investigate the population density of insect pests and natural enemies in the rice field and bund. A total of 7 pest species and 15 natural enemy species were collected in the rice field. 10 pest species and 20 natural enemy species were collected in the bund, also. Changes in population density of insect pests and its prey were investigated in the rice field and bund. Population densities of insect pests were low at any time during the rice growth period in the field. This could be the high density of natural enemies. Bunds served as refuge for natural enemies when rice maturity. There are rich complex of biological control agents in rice field and bund. So, when we practice integrated pest management(IPM) of rice insect pests, we should use various natural enemies.