设施避雨育苗对红颊草莓炭疽病的防治效果

2008年在江苏省丘陵地区镇江农业科学研究所草莓试验园内进行大棚设施避雨育苗试验。供试草莓品种为红颊、章姬和明宝。试验结果表明,对炭疽病抗性弱的草莓品种红颊、章姬,采用新田避雨育苗的防治效果都在85%以上,可以完全控制炭疽病的发生;连作田采用避雨育苗的防治效果在65%以上,有一定的防治效果;采用新田露地育苗的防治效果在25.3%~31.2%之间,防治效果不佳;连作露地育苗的病情最严重,如碰到夏季高温多雨年份往往会育不出苗。因此,红颊、章姬的育苗必需采用避雨育苗方式。明宝采用避雨育苗与露地育苗相比,在防治炭疽病效果上无明显差异,明宝采用避雨育苗意义不大。

Control Effect of Seedling-raising in Rain-avoiding Shelter on Anthracnose of 'Hongjia' Strawberry

The experimental results showed that for 'Hongjia' strawberry which has weak resistance to anthracnose,raising seedlings in new field in rain-avoiding shelter had high control effect(over 85%) on anthracnose;raising seedlings in continuous cropping field in rain-avoiding shelter had moderate control effect(over 65%) on anthracnose;while raising seedlings in new or continuous cropping opening field had low control effect(below 31.2%) on anthracnose.