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(一)在人工接菌的情况下,用升汞、賽力散、西力生、浓波尔多液等几种农药处理藷苗防治黑斑病在室內測定的結果,以升汞处理的防病效果为最显著,其次为賽力散,其它几种效果較差。田間种植試驗結果与室內测定的情况基本一致。 (二)自苗床上剪下的藷苗用升汞、賽力散等处理后,除浸药部分显現有褪色斑块外,栽培后对藷苗成活、生长和甘藷产量尚无不良影响,但自苗床上拔下的薯苗地下的白色部分,經药剂处理后药害較为严重,除褪色外有轻微腐烂現象。
(A) in the case of artificial inoculation, the use of mercuric chloride, Salicylic acid, the force of Health, concentrated Bordeaux mixture of several pesticides to deal with potato seedling control indomethacin indoors determination of the results, with mercury treatment of disease prevention The effect is the most significant, followed by Saracenic, the other several less effective. Field planting test results and indoor determination of the situation is basically the same. (2) After the seedlings cut from the seedbed were treated with mercuric chloride, Sai Li San, etc., there was no adverse effect on the survival, growth and sweet potato production of the potato seedlings after cultivation, except that some of the seedlings appeared faded plaques. However, Since the seedbed on the seedbed unplug the white part of the underground, after treatment of the more serious phytotoxicity, in addition to fade a slight rot.