微生态制剂对葡萄炭疽病与白腐病的田间防效评价

Control Effects of Microecological Preparationson Grape Ripe Rot and White Rot

以‘赤霞珠’及‘霞多丽’2种酿酒葡萄为试材,采用单独或与化学药剂交替施用微生态制剂绿康威及绿地康3号的施药方法,研究了其对葡萄炭疽病与白腐病的田间防效,以期探究出高效环保的田间防治方案。结果表明:单独施用绿康威和绿地康3号对2个品种葡萄炭疽病的平均防效分别为52.0%和36.1%,对白腐病的平均防效分别为45.9%和43.9%;2种微生态制剂与化学药剂交替施用对2个品种葡萄炭疽病与白腐病的平均防效分别为82.1%和90.8%;单独施用化学药剂对这2种病害的平均防效分别为86.0%和90.1%。单独喷施绿康威或绿地康3号对葡萄炭疽病与白腐病的防效较低且不稳定,与化学药剂交替喷施时对炭疽病与白腐病的防效与单独施用化学药剂的防效相当,且减少了35%的化学药剂使用量。

‘Cabernet Sauvignon’and‘Chardonnay’grapes were used as materials,and microecological preparations Lyukangwei and No.3 Lyudikang were applied separately or alternately with chemical fungicides in the field.The control effects on grape ripe rot and white rot were studied,so as to explore efficient and environmentally field application strategies.The results showed that the average control effects of spraying Lyukangwei and No.3 Lyudikang alone on ripe rot were 52.0%and 36.1%respectively,and on white rot were 45.9%and 43.9%respectively.The average control effects of spraying the two microecological preparations alternately with chemical pesticides on ripe rot and white rot were 82.1%and 90.8%respectively.The average control effects of using chemical pesticides alone were 86.0%and 90.1%respectively.The results indicated that the control effects of applying Lyukangwei and No.3 Lyudikang alone was unstable on white rot and ripe rot.While spraying Lyukangwei or No.3 Lyudikang alternately with chemical pesticides,the control effects on grape white rot and ripe rot were equivalent to the chemical pesticide applied alone,besides,it could reduce usage of the chemical fungicides by 35%.