• Korean journal of applied entomology
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• v.16 no.3 s.32
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• pp.155-161
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• 1977

During 1976 the effects of insecticide placement in the root zone of the rice plants were evaluated for control of rice insect pests in the screenhouse and in the paddy field at Suweon. The methods of insecticide placement included the use of encapsuled formulation and injection of liquid formulation. In screen house experiments, the root' zone placement of carbofuran was highly effective up to 30 days after treatment against the striped rice borers (Chilo sujppressalis) and up to 17 days after treatment against the small brown planthopper(Laodelphax xtriatellus) and the brown planthopper (Nilaparvata lugens), while the root-zone placement of omethoate and disyston were ineffective. In field experiments, the injection in every other row by the liquid applicator designed at IRRI was less effective for control of the striped "'rice borers and the small brown planthoppers than the caupsule placement. The single root·zone placement of liquid carbofuran, however, seemed to be equal in 'effectiveness to two broadcast applications of carbofuran and diazinon. In the plots treated at 5 days after transplanting, incidence of the dead hearts by the striped rice borers was much lower than in the plots treated at the 18 days after transplanting.

• Korean journal of applied entomology
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• v.61 no.2
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• pp.299-305
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• 2022

We investigated the occurrence and damage information of 9 species (7 families) of insect pests in two places of rucola (Eruca sativa Mill.) cultivated houses in Gyeonggi Province from 2019 to 2021, and selected five insecticides that could efficiently control the beet armyworm, Spodoptera exigua. Five insecticides (spineram SC, fluxametamide EC, chlorantraniliprole WG, cyantraniliprole DC, and emamectin benzoate EC) showed high control effects over 95% against 3^rd instar larvae of S. exigua at the two places of rucola cultivation, and there was no phytotoxicity at double dose of concentration.

• Life and Agrochemicals
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• v.30 no.1 s.244
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• pp.50-51
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• 2009

어저귀는 사료용 곡물 수입시 혼입되어 사료작물 포장 중 옥수수밭에서 많이 발생된다. 효과적인 방제법은 토양처리제와 경엽처리제로 처리하여 밀도를 줄여나가는 것이다.

• Korean Journal of Organic Agriculture
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• v.21 no.4
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• pp.725-736
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• 2013

In order to acquire morphological characteristics and genetic characteristics of pathogen that causes anthrax to chestnut, anthrax was separate and identified in Gongju, chungnam chestnut plantation. Antagonistic microorganisms and plant extracts were selected for control of anthrax. Medium maturing variety treatment of 250 dilution fold in field was control at 71.2% and treatment of 500 dilution fold was control at 64.4% and treatment of 1000 dilution fold was control at 40.7%. Storage control value of Jabong in $25^{\circ}C$ after treatment in field is 61.7% at 250 dilution fold, 62.8% at 500 dilution fold, 40.9% at 1000 dilution fold treatment.

• The monthly packaging world
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• s.150
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• pp.129-139
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• 2005

한국무역협회(회장 김재철)가 주최하고 국립식물검역소, 한국수출입식물방제협회, 한국중량물포장협회, 한국파렛트협회가 주관하는 수출입 화물 목재포장재 검역 설명회가지난 달 6일 트레이드타워 대회의실에서 열렸다. 이번 설명에서는 $\Delta$ 우리나라 수입목재포장재의 검역요건 $\Delta$ 목재포장재 수출입절차 및 주의사항 $\Delta$ 목재포장재 대체용기를 소개했다. 본 고에서는 나라별 수출∙입 화물 목재 포장재 소독처리 기준을 살펴본다.

• Research in Plant Disease
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• v.25 no.4
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• pp.188-195
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• 2019

Among 6 fungicides, fluazinam, which had an excellent inhibitory effect on mycelial growth and spore germination, was also effective in controlling jujube anthracnose in the field. While EC₅₀ values of metconazole and tebuconazole ranged from 0.2 to 0.9 ㎍/ml and from 0.4 to 1.1 ㎍/ml against the mycelial growth, respectively, each inhibitory effect on spore germination was low by 7.4% and 11.1% at 50.0 ㎍/ml. In the field test, they showed the control value of 80.5% and 77.0%, respectively. The protective fungicides, as mancozeb and folpet, which had a low inhibitory effect on the mycelial growth, but had a high inhibitory effect of spore germination, showed excellent disease control activities by 87.6% and 92.0% in the field. Showing a result of resistance monitoring conducted with the isolates of Colletotricum gloeosporioides, the resistance against carbendazim was already generated in the field, but it was thought that there was no resistance to pyraclostrobin, fluazinam and tebuconazole. However, if the resistance factor value of the population of C. gloeosporioides isolates to pyraclostrobin was high by 160.4, the diversity of the response to the fungicide in the population was high, so it should be taken more attention to the resistance management.

• Research in Plant Disease
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• v.23 no.1
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• pp.19-34
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• 2017

Recent worldwide demand for organic and sustainable agriculture products is driving the development of formulations of biopesticides effective in the field. Biopesticides have the benefit of environmentally-friendly qualities. However, biocontrol approaches largely have been ineffective in controlling plant pests in field conditions. Previously, we developed a cost-effective biocontrol formulation containing chitin and chitinase-producing biocontrol bacteria with field efficacy. This formulated product has successfully suppressed various plant diseases in the field conditions. In this review, we focus on ecological aspects and the potential mechanisms underpinning the success of chitinase-producing bacteria. In addition, we discuss the possibility on-site cultivation of the formulated products to further strengthen the approach as being farmer friendly and successful.

• Research in Plant Disease
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• v.15 no.3
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• pp.248-253
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• 2009

Chitosan has an antifungal activity and is widely used for control of various plant disease and plants growth in the field in Korea. Disease control efficacy of two preparations (SH-1, SH-2) of mixtures of high and low (chitooligosaccharide) molecular weight chitosan compounds against tomato leaf mold caused by Fulvia fulva was investigated under plastic greenhouse conditions. Both SH-1 and SH-2 formulations displayed potent disease control activity in two experiments. The protective activity of both preparations was comparable to synthetic thiophanate-M. The persistence activity of the formulations was sustained until 21 days after application. Effective concentration of the chtosan compounds for disease control was 1,200 mg a.i./L. In pot tests, chitosan preparations, at a concentration of 600 mg a.i./L, promoted plants growth. These results indicate that the chitosan preparations have a potential as an eco-friendly natural fungicide for the control of tomato leaf mold and plant growth regulator.

• Korean Journal Plant Pathology
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• v.12 no.2
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• pp.137-141
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• 1996

오이에서 분리한 비병원성 Fusarium oxysporum 균주 4-1은 온실에서 오이에서 선접종하였을 때 덩굴쪼김병에 안정적인 방제효과를 보여 세 번의 시험에서 그 방제가가 67~100%에 달하였다. 이 균주는 접종후 90일에도 오이 뿌리에서 높은 빈도로 재분리 되었으며 g 토양당 분생포자 농도가 10\ulcorner개 이상의 높은 농도로 접종하였을 때는 뿌리의 갈변현상을 초래하였다. 1993년부터 1995년에 걸친 세 번의 포장시험에서 이 균주는 오이덩굴쪼김병의 발생을 무처리 발병율 56%, 11%, 35%에 비해 18%, 1%, 8%로 각각 억제하였다.

• Korean journal of applied entomology
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• v.17 no.3 s.36
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• pp.143-147
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• 1978

1. The trials were planned to test ten different fungicides for the control of ginseng damping off Caused by Rhizoctonia solani in the laboratory and in the field. 2. Fungicidal activity was tested by soil drenching in test tube in the laboratory and with seedlings in t he seedbed naturally and artificially infested with damping-off organisms. 3. Promising chemicals to control damping-off of ginseng without marked phytotoxicity were Homai, Captan, Validamycin and Tachigaren.