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芦笋茎枯病菌以分生孢子器在病株残茬上越冬,成为翌年发病的主要初侵染源。分生孢子释放高峰为4月26日至7月9日。分生孢子释放、萌发、侵染必须在有水的条件下进行。孢子萌发需有芦笋组织液做营养激发,在清水中不萌发。病菌从侵入到形成新的分生孢子一个侵染周期在23—27℃为10—12天,17—22℃为15—20天。采笋田茎枯病发生发展经过扩展期(7月—8月上旬),盛发期(8月中旬—9月)两个阶段。雨日雨量是决定茎枯病消长流行的主导因素,降雨后5—7天田间即出现一次新侵染高峰,大雨或连阴雨后尤为明显,秋季早上植株结露有利茎枯病菌后期侵染。在化学防治上,日本产别腐烂(Befran)和国产复方多菌灵胶悬剂是防治芦笋茎枯病较理想药剂。
Asparagus stem-blight bacteria in the conidia overwintering in the diseased stubble, became the main source of infection in the following year. Conidia release peak from April 26 to July 9. Conidia release, germination, infection must be carried out in the presence of water. Spore germination requires asparagus tissue fluid to do nutrition stimulation, does not germinate in water. Germs invade to form new conidia An infection cycle at 23-27 ° C for 10-12 days and 17-22 ° C for 15-20 days. Shoot Tian shoot blight occurred after the expansion period (July - early August), full-fat period (mid-August - September) two stages. Rainy day rainfall is the dominant factor that determines the prevalence of stem blight. A peak of new infection appeared in the field 5-7 days after rainfall, especially after heavy rain or even overcast rainy season. In the chemical control, the Japanese do not produce decay (Befran) and domestic compound carbendazim suspending agent is an ideal agent for controlling asparagus stem blight.