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신갈나무 (Quercus mongolica Fisch) 목초액의 제초활성
김성문(Songmun Kim),김용호(Yongho Kim),김진석(Jin-Seog Kim),안문섭(Mun-Sub Ahn),허수정(Su-Jeong Heo),허장현(Jang-Hyun Hur),한대성(Dae-Sung Han) 한국농약과학회 2000 농약과학회지 Vol.4 No.3
The objective of this study was to determine if wood vinegar of Quercus mongolica Fisch has herbicidal activity. Growth of plants, such as barnyard grass (Echinochloa crus-galli P. Beauv), quackgrass (Agropyron smithii RYDB), canola (Brassica napus L.), velvetleaf (Abutilon avicennae), indian jointvetch (Aeschynomene indica), and common sorghum (Sorghum bicolor) grown on agar batch treated with 0.01 % wood vinegar were similar to that of plant without wood vinegar. The growth of such plants, however, reduced at 0.1-1% concentrations, and inhibited totally at >5% concentration. In greenhouse study, soil-applied wood vinegar did not inhibit the growth of canola, barnyard grass, large crabgrass, and Abutilon avicennae even at the highest concentration, 80L 80L?¹ 10a?¹) while foliar-applied wood vinegar did inhibit the growth of plants at higher than 40L 80L?¹ 10a?¹. Growth of canola, barnyard grass, large crabgrass, and Abutilon avicennae treated with wood vinegar (80L 80L?¹ 10a?¹) was reduced by 71, 46, 24, and 47%, respectively. In field experiment conducted at Chunchon and Taebeck, biomass of weeds treated with wood vinegar at less than 40L 80L?¹ 10a?¹ were close to that of weeds treated without wood vinegar, while biomass of weeds at 80L 80L?¹ 10a?¹ was reduced by 34-36%, compared to that of control, at both sites. However, the herbicidal activity of wood vinegar was much lower than that of glyphosate. Results in this study show that wood vinegar of Quercus mongolica Fisch has herbicidal activity, although the herbicidal activity was lower than that of glyphosate, a commercial herbicide.
김성문(Kim Songmun),최해진(Hae-Jin Choi),김희연(Hee-Yeon Kim),이동경(Dong-Kyung Lee),김태한(Tae-Han Kim),안문섭(Mun-Sub Ahn),허장현(Jang-Hyun Hur) 한국농약과학회 2002 농약과학회지 Vol.6 No.4
The objective was to know if chinese cabbage growers in Gangwon alpine farmland control agricultural pests including weeds effectively and use pesticide properly. Examiners visited 185 farmers at Taebaek, Pyongchang, and Jeongseon and surveyed 33 questions on pest control methods pesticide use. Chinese cabbage farmers have noxious plant diseases such as clubroot, bacterial soft rot, downy mildew, anthracnose, and mosaic disease, and also noxious insects such as diamondback moth, aphid, beet armyworm, common cabbage worm, and Japanese native slug. In addition, farmers have noxious weeds such as common chickweed, marsh pepper, hairy crabgrass, common purslane, and horseweed. To control diseases and insects, 51.3% of farmers used many chemical agents, while 20.7% of farmers used chemical agents with too much emphasis on paraquat and glyphosate to control weeds: 87.2% of the answered farmers have a preference of the both non-selective herbicides. Farmers in the survey area selected pesticides on the basis of their own experience and sales managers' recommendation (84.2%) which results in the use of inappropriate pesticides such diniconazole. Many farmers have experienced phytotoxicities (46.7%) and pesticide poisoning (51.2%). We conclude that a systematic educational program for the proper selection and use of pesticides should be conducted for chinese cabbage growers in Gangwon alpine farmland.