The Weed Flora of Korean Mulberry Fields

Abstract

The weed flora in the mulberry fields were investigated in Suwon, Jeonju, and Buan in May, July, and September of 2014. The objectives of this study were to use the survey data for establishing weed control methods and to bring awareness of possible problematic weeds in the Korean mulberry fields. The survey was conducted in 53 regions, covering approximately 145,925 m 2 . Altogether 153 weed species of 37 families were identified, of which 68 were annual, 39 species were biennial and 46 were perennial. The dominance was the highest with Digitaria ciliaris followed by Erigeron annuus, Chenopodium album, Echinochloa crus-galli var. crus-galli, Acalypha australis, Commelina communis etc. Exotic weeds presented 44 species with 28.8% of a total presence, of which Erigeron annuus was the highest, followed by Chenopodium album, Phytolacca americana, Conyza canadensis, Oxalis corymbosa etc. Especially, we should aware Senecio vulgaris, not controlled with glufosinate ammonium SL in the Korean mulberry fields because it was known as atrazine resistance in US, Canada, Germany etc. In the PCA plot, weeds presented in the mulberry fields were divided into two groups, Eclipta prostrata community and Stellaria aquatic community and weed flora of Suwon and Buan were different due to those only presented in Suwon.

Ecological Characteristics of Weed Species on Dry Field in the Eastern Region of Korea

“…; Kim et al, 2014;Lee et al, 2015)과 더불어 특정지 역을 대상으로 연차별로 일정한 조사시기에 잡초의 종수, 우점도, 발생 양상 등의 변화에 대한 연구가 수행되어 있 으며 Choi et al, 2009;Hwang et al, 2013) 경상북도지역에 대한 일부 연구가 이루어져 있다 (Lee, 1996a;Lee, 2003;Park, 2009) (Kim and Manyko, 1994;Kim and Lee, 2006). 상대기여도의 산출은 피도 값에 대하여 평균 피도 백분율을 적용시켰다.…”