【类型】期刊
【题名】Indoor screening of biofungicides for strawberry root rot and verification of field control efficacy.
【作者】 JE Regan
【关键词】 biopesticide 田间防治效果 pathogen isolation and identification field control efficacy 草莓根腐病 生物源农药 病原菌分离鉴定 strawberry root rot inhibitory activity 抑菌活性
【期刊名】Chinese Journal of Pesticide Science / Nongyaoxue Xuebao
【摘要】Strawberry root rot is one of the main diseases of strawberry in Guanzhong, Shaanxi Province. In this report, the pathogen strains of strawberry root rot were isolated through tissue isolation method. And they were identified as Fusarium solani and Fusarium oxysporum through morphological and molecular biological methods. The inhibitory activity of four plant derived fungicides against two Fusarium species was determined by mycelial growth rate test. Matrine + osthol 1.5% AS had the strongest inhibitory activity to F. oxysporum with EC50 value of 2.7 μg/mL, while matrine 0.3% EC had the strongest inhibitory activity to F. solani with EC50 value of 4.5 μg/mL. Three plant derived fungicides and three microbial fungicides (Bacillus subtilis, Bacillus polymyxa and Trichoderma harzianum) were selected for field test against strawberry root rot. The 600 times dilution of B. subtilis 100 billion spores/g WP had the best control efficacy against strawberry root rot, up to 69.25%. The control efficacy of 800 times dilution of B. polymyxa 1 billion spores/g WP, 700 times dilution of matrine + osthol 1.5% AS and 200 times dilution of T. harzianum 200 million spores/g WP were 63.14%, 62.84% and 59.74%, respectively. Therefore, B. subtilis WP, B. polymyxa WP, matrine + osthol AS and T. harzianum WP are recommended as field control agents for strawberry root rot.
【年份】2022
【ISSN】1008-7303
【页码】1456-1465
【期号】6
【作者单位】1西北农林科技大学 植物保护学院, 陕西 杨凌 712100. 2山西省运城市农业农村局, 山西 运城 044000. 3陕西省生物农药工程技术研究中心, 陕西 杨凌 712100.
【期刊卷】24
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