| 재배양식에 따른 무화과 역병의 발생 및 친환경적 방제 |
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마경철, 변만호, 방극필, 고숙주, 이용환 |
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| Incidences of Phytophthora Fruit Rot on Fig according to the Cultural Practice and Its Eco-friendly Control |
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Kyeong Chul Ma, Man Ho Byeon, Geuk Pil Bang, Sug Ju Ko, Yong Hwan Lee |
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| Abstract |
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For the eco-friendly control of fruit rot of fig, disease incidences according to the cultural practices at 51 fig orchards in south coast area of Korea were surveyed in 2002, and the effect of soil mulch and potassium phosphonate on fruit rot of fig was evaluated from 2002 to 2004. Diseased fruits of fig orchards of open field, rain shading, and vinyl house were 33.3%, 7.5%, and 0%, respectively. Diseased fruits were rated at 34.6%, 35.7%, and 27% as the tree spacing of 2 m×2 m, 2m ×3m, and 3 m×4 m, respectively. Among the soil mulching materials, barley straw showed disease incidence of 1.8% and 3.5% of diseased fruits compared to 42.1% and 48% of no mulching in 2002 and 2003, respectively. Diseased fruits in dark paper film mulching were recorded at 4.8% and 12% in 2002 and 2003, respectively, which were lower than those in dark polyethylene film mulching at 11.2% and 26.2%. When potassium phosphonate (1,000 ppm) was sprayed 3 times with 10 days intervals from the beginning of disease occurrence, disease incidences were rated at 3.0% and 2.0% in 2003 and 2004, respectively, which were much lower than those of control at 45.9 % and 39.3%. |
| Key Words:
Cultural practice, Fig, Mulching, Phytophthora palmivora, Potassium phosphonate |
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