초록 ▼

○ 연구결과
임상제형 및 액상제형에 대한유효성분을 선정하고 이에 대한 효과를 평가하고, 합제의 살충력 상승효과를 확인하였으며, 첨가제 혼합에 따른 최적배합을 통해, 제제화 기술을 확립하였다. 제품에 대한 안전성 평가를 실시하였으며 평가항목으로는 포유동물에 대한 독성시험과 생태계 생물에 대한 영향시험을 확인하였다. 확립된 제제화 기술을 통해 액제 시제품과 입제 시제품을 각각 제조하여 12개월간의 경시적 안정성을 확인하였다. 개발 제품은 실내효과평가를 통해 작용기작을 분석하였고, 환경조건이 다른 여러 지역의 수도작 농가포장에서

○ 연구결과
임상제형 및 액상제형에 대한유효성분을 선정하고 이에 대한 효과를 평가하고, 합제의 살충력 상승효과를 확인하였으며, 첨가제 혼합에 따른 최적배합을 통해, 제제화 기술을 확립하였다. 제품에 대한 안전성 평가를 실시하였으며 평가항목으로는 포유동물에 대한 독성시험과 생태계 생물에 대한 영향시험을 확인하였다. 확립된 제제화 기술을 통해 액제 시제품과 입제 시제품을 각각 제조하여 12개월간의 경시적 안정성을 확인하였다. 개발 제품은 실내효과평가를 통해 작용기작을 분석하였고, 환경조건이 다른 여러 지역의 수도작 농가포장에서 실증시험을 실시하여 액제 시제품과 입제 시제품에 대한 최적처리 방법을 확립하였으며, 대조구인 화학농약과 대비한 비교시험을 실시한 결과, 화학농약 대비 방제가 80%이상을 확인하였다.

Abstract ▼

In this research, the development of Biopesticide to control the Lissorhoptrus oryzophilus which is one of the reason of decrease of rice production output was conducted.
To optimize the product, insecticidal material and extract were formulated and tested to verifiy synergistic effect.
First,

In this research, the development of Biopesticide to control the Lissorhoptrus oryzophilus which is one of the reason of decrease of rice production output was conducted.
To optimize the product, insecticidal material and extract were formulated and tested to verifiy synergistic effect.
First, it was completed to formulate them as a granular type of product. The spreading effect of silica granules on the surface of the water was excellent and silica granules were selected as a carrier.
The optimal mixture of granular product was selected 15% of Neem extract 41%, Citronella extract 41%, Canola oil 4%, Castor oil. ethoxylated 2.6%, Polyoxyetylene (1,1,3,3-tetramethylbutyl) phenyl ether 2.6%, Xanthan gum 0.001%, Polyethylene glycol 2.3%, Ethoxyquin 0.0075% and Ethanol 6.5% with silica granules 85%.
The optimal mixture of liquid product was selected Neem extract 41%, Citronella extract 41%, Polyoxyethylene sorbitan monooleate 0.005%, Xanthan gum 0.001%, Polyoxyethylene (1,1,3.3-tetramethylbutyl) phenyl ether 5%, Polyethylene glycol 5% and Ethanol 8%.
Liquid and granular products were stably stored during 12 months with storage temperature, emulsion properties, physicochemical properties and water spreading properties.
Liquid and granular products were tested for the acute oral toxicity, acute dermal toxicity effect study against mammal and also its additives were tested for the acute oral toxicity, acute dermal toxicity and effect study to freshwater fish.
According to the result of evaluating the effectiveness of the product inside, criteria for optimal treatment of granular product was suitable for 3kg/300 plain.
And optimal treatment of liquid products in the rice water weevil was 500 times of dilution.
In case of field experiments, the best way to control rice water weevil was applying liquid product at least 7 days before transplanting and applying granular product at the day of transplanting. As a result, more than 80% of the control rate against the rice water weevil in the field and no damage at double amount of treatment was detected
It was published a list of eco-friendly organic materials on the 15th April, 2010 as a part of corp insect management materials (the target pest : Rice water Weevil, list Number : 10-organic-5-288. Detailed information is available at the website of RDA(www.rda.go.kr).
With respect to the results of this study, the formulation technology of our product which controls rice water weevil will be applied for a patent sooner or later.