几种新农药对芦笋茎枯病的田间药效评价
Evaluation of Control Effects on Several Fungicides to Stem Blight of Asparagus
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摘要: 1992-1993年对百可得、特灭唑、霉敌、芦笋青(又名锰多清)等4种新杀菌剂进行了防治芦笋茎枯病田间药效试验。结果表明:百可得以大施药液量(4000kg/hm2)喷雾,500mg/L和333mg/L药液浓度的防效显着高于对比药剂百菌清1250mg/L;芦笋青1000mg/L液的防效略高于百菌清1250mg/L,而以10000mg/L液涂茎,表现有优异的保护兼治疗作用,防效显着优于多菌灵和霉敌,其成本低廉且使用安全,是目前防治芦笋茎枯病较为理想的药种之一。此外,本文对防治芦笋茎枯病施药技术进行了探讨。Abstract: The experiments of control effectiveness of several fungicides including Bellkute ,Diniconazole,Thiabendazole, Chlorothalonil.Carbendazim and Lusunqing (new mixture) was tested in field to control stem blight of asparagus in 1992-1993.The results showed that the contral effect of 79.76% on average for Bellkute with 500 mg/L was significantly (P0.01) better than that of 48.68% on average for Chlorothalonil with 1250 mg/L under the condition of sprayed with diluting fungicide liquid 4000 L/hm2 when the disease was seriously Prevalant.And coned effect of 78.24% on average for Lusunqing with 1000mg/L was better than that of 71.74% for Chlorothalonil with 1250 under the spraying liquid 1500L/hm2, but there were no significantly difference between them.By means of penting on surface of asparagus shoot with 10000 mg/L Lusunqing the control effect (80.97%) was the highest.
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Key words:
- Asparagus officinalis L /
- Phomopsis asparagi Bubask /
- Fungicides /
- Control effect
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