Research in Plant Disease 2011;17(3):351-357.
Published online December 30, 2011.
전남지역의 벼 줄무늬잎마름병 발생 분석
고숙주, 강범용, 김도익, 최덕수, 김선곤, 이관석, 김창석, 최홍수, 김홍재, 김정수
 
Analysis of the Occurrence of Rice stripe virus in Jeonnam Province
Sug Ju Ko, Beom Ryong Kang, Do Ik Kim, Duck Soo Choi, Seon Gon Kim, Gwan Seok Lee, Chang Seok Kim, Hong Soo Choi, Hong Jae Kim, Jeong Soo Kim
Abstract
Occurrence of Rice stripe virus (RSV) was investigated in Jeonnam province from 2008 to 2011. Incidence of RSV was surveyed in paddy fields during growth stage. In western and southern coast parts of 5 districts, Jindo, Wando, Shinan, Haenam and Muan, rice was severely damaged by RSV from 2008 to 2009. But, RSV didn`t almost occur in 2010. Viruliferous ratio (VIR) of RSV from overwintered small brown plant hopper (SBPH, Laodelphax striatellus) showed 4.7%, 11.3%, 8.7%, and 2.8% from 2008 to 2011. It was highly recorded in Jindo, Wando, and Shinan of southwestern area. SBPH was collected by sucking machine at 1 m2 with 3 replications per paddy field in March. The density of SBPH was high on March, but low on April in non-cultivated barley field from winter to spring. Farmer`s plowing this season assumed to be a cause of SBPH density decrease. The number of SBPH was 7.7, 5.4, and 4.0 per m2 during three years, respectively.
Key Words: Laodelphax striatellus, Rice, Small brown plant hopper, Viruliferous ratio


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