Abstract:
PURPOSE: A composition containing apple extract or compound isolated from the extract is provided to prevent environmental pollution and tomato late blight or anthracnose. CONSTITUTION: A composition for preventing rice blast, tomato late blight, phytophthora blight, or anthracnose contains Malus domestica fruit extract as an active ingredient. The composition for preventing the plant diseases contains a compound of chemical formula 1 as an active ingredient, isolated from the Malus domestica fruit extract. The Malus domestica fruit extract is isolated using low carbon number alcohol of 1-7 carbon atoms and solution thereof, hexane, acetone, chloroform, ethyl acetate, methylene chloride, or mixture thereof.
Abstract:
PURPOSE: A microorganism formulation containing Bacillus velezensis KRICT934 strain and culture liquid thereof is provided to ensure excellent antibacterial activity against plant diseases and to enhance crop production. CONSTITUTION: A Bacillus velezensis KRICT934(deposit number KCTC 11774BP) strain is isolated from Brassica campestris L. roots and has an antibacterial activity against plant pathogenic bacteria. The bacteria causes sheath blight, tomato gray mold, tomato late blight, mill red rust, or barley powdery mildew. A microorganism formulation with an antibacterial activity against plant pathogenic bacteria contains the Bacillus velezensis KRICT934 strain or culture materials of the strain.
Abstract:
PURPOSE: An acetogenin material isolated from Annona squamosa seeds and a composition containing the same are provided to prevent plant diseases without environmental pollution. CONSTITUTION: A composition for preventing plant diseases contains acetogenin compound of chemical formulas 1-5, plant extract containing the compound, or mixture thereof. The plant diseases are caused by Meoidogyne spp., Puccinia spp., Phytophthora spp., Magnaporthe spp. or Colletrichum spp. The plant extract is isolated from Annona plant. An active ingredient is squamocin, squamocin-G, squamocin-H, squamocin-L, squamocin-M, squamocin-I, squamocin-K, squamocin A, annoteomoyin A, and solamin.
Abstract:
PURPOSE: An insecticidal composition containing Asarum sieboldii extract is provided to efficiently prevent pest such as mite, delphacidae and moth. CONSTITUTION: An insecticidal composition contains Asarum sieboldii or Asarum maculatum extract. The extract is obtained from leaves, stems or roots of Asarum sieboldii using methanol, ethanol, acetone, ethyl acetate, ether, dichloro methane, or hexane. A method for preparing the Asarum sieboldii extract comprises: a step of drying and pulverizing Asarum sieboldii; a step of mixing Asarum sieboldii with methanol in a weight ratio of 1 : 10-1: 40 and extracting for 48 hours; a step of filtering and concentrating; and a step of drying to obtain a crude extract.
Abstract:
PURPOSE: A Bacillus velezensis PB3 strain and a composition for preventing plant diseases containing the same are provided to promote growth of crops. CONSTITUTION: A Bacillus velezensis PB3 strain(KACC 91393P) is isolated from a stem of Capsicum annuum. A composition for preventing plant diseases contains Bacillus velezensis PB3 strain(KACC 91393P), culture media thereof, or media extract. The plant disease is caused by Rhizoctonia solani, Phytophthora capsici, Colletotrichum coccodes, Fusarium oxysporum, Sclerotinia sclerotiorum, Botrytis cinerea, Magnaporthe grisea, or Alternaria panax. The extract is isolated using alcohol of C1-C4, hexane, acetone, or ethyl acetate.
Abstract:
PURPOSE: A carboxamide derivative is provided to bactericidal activity against plant epidemic, especially tomato epidemic and to have no crossed resistance to existing fungicide. CONSTITUTION: A carboxamide derivative has a structure of chemical formula 1 or optical isomer. In chemical formula 1, V is H or C2-C10 alkanyl, W is substituted or unsubstituted C6-C14 aryl or C7-C20 aryloxyalkyl or C1-C12 heteroaryl containing at least one N, S or O in a ring; n is an integer of 0-4; m is 0 or 1; R1, R2, R3 and R4 are independently H or C1-C6 alkyl; X is O, NH or S; Y is H or halogen; and Z is H or C1-C6 alkyl substituted or unsubstituted with cyano or C6-C12 aryl, or C2-C10 alkynyl.
Abstract:
A composition comprising neolignan compounds or the extract of Magnolia spp. is provided to supply the environment-friendly natural fungicide which is harmless to the human body by using natural extract. The composition for controlling plant diseases comprises the extract of Magnolia spp. which is prepared by extracting Magnolia spp. with the solvent selected from C1-C4 alcohol or its aqueous solution, hexane, ethylacetate, methylene chloride and mixture thereof, and comprises neolignan compounds represented by the chemical formula(1), chemical formula(2) or chemical formula(3), wherein R is H or CH3.
Abstract:
본 발명은 리그난(lignan)계 화합물, 레조시놀(resorcinol)계 화합물 또는 이를 포함하는 육두구(nutmeg) 추출물을 유효성분으로 함유하는 식물병 방제용 조성물 및 이를 이용한 식물병 방제방법에 관한 것이다. 본 발명에 따른 방제용 조성물은 천연물로부터 유래하여 인체에 무해하고 환경오염을 유발하지 않으면서 다양한 식물병에 대하여 높은 방제활성을 나타내므로 환경친화적인 천연물 살균제의 개발 및 고부가가치의 유기농산물 생산에 유용하게 사용될 수 있다.
Abstract:
본 발명은 식물병 방제 효과가 우수한 알킬 지방산 에스터 함유 조성물 및 이를 이용한 식물병 방제 방법에 관한 것으로, C 12 -C 18 지방산의 메틸 또는 에틸 에스터로 이루어진 군에서 선택된 알킬 지방산 에스터 또는 이들의 혼합물을 활성 성분으로 포함하는 본 발명의 조성물은 식물의 흰가루병 및 녹병에 대하여 우수한 예방 효과 및 치료 효과를 나타낸다. 또한, 인체 또는 가축에 대한 독성이나 환경오염의 위험이 거의 없고, 다른 흰가루병 및 녹병 방제제와 함께 사용함으로써 농약의 사용량을 줄일 수 있다.