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Occurrence characteristics and management plans of Lactuca scariola L., an ecosystem disturbance plant
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생태계교란식물 가시상추의 발생특성과 관리방안

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Type
Academic journal
Author
In-Yong Lee (국립한경대학교 식물자원조경학부) Seung-Hwan Kim (국립한경대학교) Yong-Ho Lee (국립한경대학교 식물자원조경학부) Sun-Hee Hong (국립한경대학교 식물자원조경학부)
Journal
한국환경생물학회 환경생물 환경생물 제40권 제3호 KCI Accredited Journals
Published
2022.9
Pages
239 - 246 (8page)

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Occurrence characteristics and management plans of Lactuca scariola L., an ecosystem disturbance plant
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Lactuca scariola L. is one of ecosystem-disturbance plants that grow everywhere such as roadsides, grasslands, railroads, banks, and fields. L. scariola usually occurs in autumn. It overwinters in rosette form. It flowers and produces seeds in early summer of the next year. Seeds of L. scariola can germinate immediately without dormancy when the temperature is over 20°C. Due to endogenous bacteria in seeds of L. scariola, it has a strong drought tolerance. Thus, it can grow well on roadsides. L. scariola should be controlled as it can result in 60-80% of soybean yield loss at densities above 50 plants m-2. It is advisable to remove L. scariola as it competes with native plants by acting as a pioneer to other ecosystem-disturbance plants. Among various control methods, chemical control is the most effective method that is widely used. Soil treatment with herbicides such as oxyfluorfen EC and pendimethalin EC can inhibit the development of L. scariola. Foliar treatment herbicides glyphosate and glufosinateammonium are widely used. L. scariola is resistant to 2,4-D, dicamba, and MCPA among foliar treatment herbicides. Thus, it is recommended to apply herbicides with different modes of action.

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