Control of Ragweed (Ambrosia artemisiifolia) of Mutant N-29 Broth Filtrate of Streptomyces scopuliridis KR-001

토양 방선균 N-29 배양 여액의 생태계교란 식물 돼지풀 방제효과

  • Received : 2018.08.28
  • Accepted : 2018.09.19
  • Published : 2018.09.30


We isolated Streptomyces scopuliridis KR-001 that produced herbicidal active metabolite(s) against several grass and broad leaf weeds. In this study, potential as natural herbicide of mutant N-29 broth filtrate of S. scopuliridis KR-001 was investigated to Ambrosia artemisiifilia in a greenhouse and field condition. The broth filtrate of mutant N-29 by foliar application showed a strong herbicidal activity to A. artemisiifilia with leaf stage in a greenhouse condition. Also, field trial of foliar application within treatment range had effectively controlled with early and middle stage of A. artemisiifilia at the natural habitats. Phytotoxic symptoms of mutant N-29 broth filtrate by foliar application were wilting and discoloration, and burn-down of leaves and finally plant death. These results suggest that mutant N-29 broth filtrate is considered possible as a natural herbicide for controlling environmentally friend to invasive alien plant such as A. artemisiifilia and may provide a new lead molecule for a more efficient herbicide.


Grant : Cooperative Research Program for Agriculture Science and Technology Development

Supported by : Rural Development Administration


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