新药剂防治加工番茄早疫病药效的研究

早疫病是新疆加工番茄的重要病害之一,其叶片、茎秆和果实均受病菌浸染,使果实产量下降,品质变劣.将几种新杀菌剂进行室内抑菌测定,48～120 h检查,均以世高有效成分1、10、100 mg/l和好力克4.3、43、86 mg/l防效最高.田间试验分别在博湖、昌吉、玛纳斯三地进行,25;阿米西达悬浮剂750倍喷雾处理防效最好,而1 000倍以及43;好力克悬浮剂3 000、4 000、5 000倍、10;世高水分散剂800倍、70;安泰生可湿性粉剂500倍处理,三地防效均高于对照70;代森锰锌500倍处理.仅世高1 000、1 200倍、安泰生750、1 000倍处理防效在玛纳斯低于或等于对照.

The Efficacy of Novel Fungicides to Control Early Blight of Processing Tomato

The early blight is one of the important diseases of processing tomato in Xinjiang. The fungus infects the lesves , stalks and fruits, which decrease yield and quality of tomato . In order to better control the disease, some novel fungicides were evaluated in laboratory and tield tests. The experiment that was made in the laboratory in Urumgi showed that Score 10% WG 1, 10, 100 mg/l and Horizon 43% SC 4.3, 43, 86 mg/L from 48～120 hours after treatment provided outstanding inhibetion efficiency to the fungus, followed by Antracol 70% WP 1 400 mg/l. In field tests in Behu, Changji and Manas, Amisto 25%SC 750 tines best controled efficient Efficacy of Amisto 25% SC 1 000 times, Horizon 43% SC 3 000,4 000,5 000 times , score 10% WG 800 times , Antracol 70% WP 500 Times was better than that of Mancozed 70%WP 500 times as a cheak fungicide. Control effecticacy of Score 10%WG 1000, 1200 times, Antracol 70%WP 750,1 000 times is lower than, or equal to that of cheak fungicide in Manas.