【摘要】 高羊茅草坪褐斑病病原菌为半知亚门无孢目丝核菌属的立枯丝核菌(RhizoctoniasolaniKuhn),在PDA平板上,菌落白色,后期淡褐色。该菌生长最适温度为25～30℃,田间在7月中下旬和9月上中旬有2个发病高峰,室内和田间药剂试验表明,5种药剂均百菌清(Chlorothalonil)、多菌灵(Carbendazim)、井岗霉素(Validamycin)、代森锰锌(Mancozeb)和福美双(Thiram)有一定防效。更多还原

【Abstract】 Brown patch disease of tall fescue (Festuca arundinacea Schreb) is caused by the fungus Rhizoctonia solani Kuhn. Its colony is white and turns light brown in the late stage. The fungus develops best under the optimum temperature from 25℃ to 30℃. Two disease occurrence peaks occur in middlelate July and earlymiddle September. The experiments both in laboratory and field indicated that the disease could be controlled to a certain degree with five fungicides (Chlorothalonil, Carbendazim, Validamycin, Mancozeb and Thiram).更多还原