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测定了0.3%苦.小檗碱.黄酮水剂50倍液、100倍液、200倍液防治番茄晚疫病的效果。试验结果显示,3种药液对叶部发病的防效分别为77.98%、74.11%、73.56%;对病果的防效分别为79.50%、75.75%、73.75%。对照组25%阿米西达悬浮剂(SC)2 500倍液和80%大生可湿性粉剂(WP)750倍液对叶部发病的防效分别为80%、61.38%,对病果防效分别78.34%、63.25%。供试药剂防效与25%阿米西达SC相近,明显优于80%大生WP。
The effect of 0.3% bitter Berberine flavonoid agent 50 times, 100 times and 200 times on controlling tomato late blight was determined. The results showed that the control efficacy of the three chemicals on the incidence of leaves were 77.98%, 74.11% and 73.56%, respectively. The control effects on the fruits were 79.50%, 75.75% and 73.75% respectively. The control effect of 25% Amoxicillin SC 2 500 times and 80% WP WP 750 times were 80%, 61.38% on the leaf, respectively. Respectively 78.34%, 63.25%. The efficacy of the tested agents was similar to that of 25% Amistar SC, which was significantly better than that of 80% Tai Sang WP.