Full TGIF Record # 128286
Item 1 of 1
Publication Type:
i
Refereed
Author(s):Lee, Du-Hyung; Ryu, Wang-Kun; Han, Kyung-Sook
Author Affiliation:Lee and Han: Department of Environmental Horticulture, Seoul City University; Ryu: National Inspection Institute of Agricultural Materials
Title:Studies on cultural characteristics and pathogenicity of Rhizoctonia spp. and effect of fungicides
Source:Korean Journal of Turfgrass Science. Vol. 6, No. 2, 1992, p. 89-97 [560-569].
Publishing Information:Korea: Turfgrass Society of Korea
# of Pages:9
Keywords:TIC Keywords: Cultural methods; Pathogenicity; Rhizoctonia oryzae; Rhizoctonia oryzae-sativae; Rhizoctonia solani; Agrostis stolonifera; Zoysia; Temperatures; Rhizoctonia blight; Fungicide trials; Disease control; Growth factors; Comparisons
Abstract/Contents:"Cultural characteristics and pathogenicity on the isolates of Rhizoctonia oryzae, R. oryzae-sativae and anastomosis group of R. solani and evaluation of selected fungicides on brown patch disease of creeping bentgrass and large patch disease of zoysia grass were studied comparatively. From effect of temperature on the rate of mycelia growth, the result indicated that the temperature groups were separated into four types: isolates of R. oryzae and R. oryzae-sativae had an optimum temperature of 30-35°C. Anastomosis groups of R. solani were separated into three temperature types as followings: high temperature type had an optimum temperature from 25 to 30°C, moderate type had grown from 20 to 25°C for optimum and low temperature type had an optimum temperature of 20°C but at 35°C did not grow. Inoculation tests showed that AG-1(IA), AG-1(IB), bentgrass isolate of R. solani and R. oryzae were strongly pathogenic on creeping bentgrass, followed by AG-2-1, AG-4, AG-5 and Ag-2-2 isolates of R. solani moderately to weakly. Zoysia grass isolate of R. Solani and R. oryzae were strongly pathogenic on zoysia grass but AG-1(IB) and AG-5 isolates of R. solani showed moderately pathogenic. Capro (iprodione oxine-copper) and mytan (myclobutanil) were extremely effective against brown patch disease of creeping bentgrass and large patch disease of zoysia grass followed by thiapan (thiopanate-methyl) and pencycuron for brown patch disease and tolos (tolclofos-methyl) and thiopan for large patch disease."
Language:Korean
References:26
Note:Abstract appears in English
Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Lee, D.-H., W.-K. Ryu, and K.-S. Han. 1992. Studies on cultural characteristics and pathogenicity of Rhizoctonia spp. and effect of fungicides. (In Korean, with English abstract.) Korean Journal of Turfgrass Science. 6(2):p. 89-97 [560-569].
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