【摘要】 调查在农民田和缅甸山州农业试验农场山区进行 ,根据病害测报评价定期用药、播期、烧堆措施在马铃薯晚疫病综合防治中的效果。试验 1的结果表明 ,在未施药的不同播期小区晚疫病严重 ,而施达克尼尔的小区病情明显轻。在试验 2中 ,Wallin’s测报系统准确地预测马铃薯晚疫病的初发生期 ,并建议开始施药。.降雨量 12 .7mm时施药比每周定期施药更有效。不同施药处理比不施药的对照增产 30 .1%～ 6 2 .2 %。病害造成的产量损失 2 3 1%～ 38 3%。烧堆措施对防治晚疫病无效 ,不过可增产 39.2 %。更多还原

【Abstract】 Investigation was undertaken at potato grower’s field and Hill Region Agricultural Research Farm, Aungban, Shan State, Myanmar, to evaluate the effectiveness of timing of fungicide application based on disease forecasting, sowing time and mound burning practice in the management of potato late blight. The result obtained from experiment I showed that disease severity was high in all unsprayed plots of different sowing times. Foliar blight was, however, significantly lower in Daconil sprayed ones of those. In experiment II, Wallin’s forecasting system accurately predicated the first occurrence of potato late blight and recommended initial spray. The 12.7 mm rainfall spray schedule was more efficient than regular weekly spray. Yield increased in different spray schedules over unsprayed check ranged from 30.1% to 62.2%. Yield losses due to the disease were found to be 23.1% to 38.3%. There was no effect of mound burning practice for the controlling of potato late blight. Mound burning practice, however, gave 39.2% higher tuber yield over normal practice.更多还原