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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.
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.
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.
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.
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).
Occurrence and Damage of Stink Bugs in the Rice Paddy Field
Geon-Hwi Lee,Chae-Hoon Paik,Seok-Min Kang,Mi-Hyung Kang,Tae-Hwan Noh,Du-Ku Lee 한국응용곤충학회 2009 한국응용곤충학회 학술대회논문집 Vol.2009 No.05
The occurrence and damage of stink bugs were monitored at South Korea from 2007 to 2008. A total of 11 stink bug species were observed in paddy field and occurrence periods of stink bugs were significantly differed by species. In occurrence period and damage of stink bug feeding in paddy field, Scotinophara lurida occurred from June, Cletus punctiger, Eysarcoris aeneus, Rhopalus maculatus, Riptortus clavatus, E. ventralis, Stenotus rubrovittatus occurred from August and Pachygrontha antennata, C. schmidti, Trigonotylus caelestialium, Paromius exiguus occurred from September. When we were classified into two region with mountain and plain area cultivated rice, generally C. puntiger population was higher in mountain area than plain area, and E. aeneus was higher in plain area than mountain area. Also, stink bug species were higher in environment condition formed with a paddy field and a waterway overgrown with weeds. Control threshold for E. aeneus in paddy field was 1-2 individuals/heading stage, and then rate of pecky rice made to 5.0% while milk stage, dough stage and yellow ripe stage made to less than 5.0%.