큰도꼬마리(Xanthium canadense Mill.)에 대한 토양처리제 약효저하의 원인 (Causes of Low Control Effect of Pre-emergence Herbicides against Cocklebur (Xanthium canadense Mill.))

서지정보

· 발행기관 : 한국잔디학회
· 수록지 정보 : Weed & Turfgrass Science / 9권 / 2호 / 151 ~ 157페이지
· 저자명 : 김진원, 전윤호, 정현우

초록

Burweed (Xanthium canadense Mill.) is exotic weed and one of problematic weeds in orchards but many pre-emergence herbicides cannot control this weed effectively. The objective of this study was to clarify low control effect of 10 pre-emergence herbicides and to find the cause.
As a result of 10 pre-emergence herbicides application to soil sowing X. canadense seeds with seed coat, dichlobenil was the best as 100% control followed by oxyfluorfen and simazine.
Residual oxyfluorfen and simazine in above-ground part were less than 20%, but those in seed coat were more than 80% compare to those in the soil. Xanthium canadense without seed coat was well-controlled by both herbicides. Therefore, the cause of low performance of pre-emergence herbicides against X. canadense was that thick seed coat absorbed herbicide and the penetration was insufficient to control X. canadense, not the tolerance. Application of non-selective herbicides or cutting could be more appropriate for control of X. canadense in the orchards rather than application of the pre-emergence herbicides.

영어초록

Burweed (Xanthium canadense Mill.) is exotic weed and one of problematic weeds in orchards but many pre-emergence herbicides cannot control this weed effectively. The objective of this study was to clarify low control effect of 10 pre-emergence herbicides and to find the cause.
As a result of 10 pre-emergence herbicides application to soil sowing X. canadense seeds with seed coat, dichlobenil was the best as 100% control followed by oxyfluorfen and simazine.
Residual oxyfluorfen and simazine in above-ground part were less than 20%, but those in seed coat were more than 80% compare to those in the soil. Xanthium canadense without seed coat was well-controlled by both herbicides. Therefore, the cause of low performance of pre-emergence herbicides against X. canadense was that thick seed coat absorbed herbicide and the penetration was insufficient to control X. canadense, not the tolerance. Application of non-selective herbicides or cutting could be more appropriate for control of X. canadense in the orchards rather than application of the pre-emergence herbicides.

참고자료

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