两种杀菌剂对油茶炭疽病的田间防效初探
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摘要
油茶是我国重要的木本油料及造林树种之一,经济价值极高。炭疽病是危害油茶的主要病害之一,但目前尚未有登记的农药用于油茶炭疽病的防治。为筛选出安全、有效防治油茶炭疽病的杀菌剂,参照《农药田间药效试验准则杀菌剂防治茶饼病》,设计并开展此试验。结果表明,12. 5%氟环唑悬浮剂有效成分41. 67、62. 5mg/kg、10%苯醚甲环唑水分散粒剂有效成分50mg/kg对油茶炭疽病均有较好防效,第2次药后20d的防效均高于70%。
Camellia oleifera is one of important woody oil plants with extremely high economic values. Anthracnose is one of major diseases threatening Camellia oleifera and there is no legally registered fungicide to control the disease. In order to screen out the safe and effective fungicides to prevent and control anthracnose,field efficacy trials were designed and carried out in accordance with the guidelines for the field efficacy trials of pesticides strictly. The results showed that both epoxiconazole 12. 5% SC at the concentrations of 41. 67 and 62. 5 mg( a. i.)/kg and difenoconazole 10% WG at the concentration of 50 mg( a. i.)/kg had good control effect of above 70% after 20 days of the second treatment.
Camellia oleifera is one of important woody oil plants with extremely high economic values. Anthracnose is one of major diseases threatening Camellia oleifera and there is no legally registered fungicide to control the disease. In order to screen out the safe and effective fungicides to prevent and control anthracnose,field efficacy trials were designed and carried out in accordance with the guidelines for the field efficacy trials of pesticides strictly. The results showed that both epoxiconazole 12. 5% SC at the concentrations of 41. 67 and 62. 5 mg( a. i.)/kg and difenoconazole 10% WG at the concentration of 50 mg( a. i.)/kg had good control effect of above 70% after 20 days of the second treatment.
引文
[1]陈永忠,王德斌。湖南省油茶良种选育及推广应用概况[J]。湖南林业科技, 2001, 28(3):25-29.
[2] Editoral Board of China Herbal. State Administration of Traditional Chinese Medicine,China. China Herbal[M].Shanghai Science and Technology publisher,1999.
[3]全国油茶产业发展规划(2009-2020),15。
[4]周仲明。林木病理学[M]。北京:中国林业出版社,1990:117-119。
[2] Editoral Board of China Herbal. State Administration of Traditional Chinese Medicine,China. China Herbal[M].Shanghai Science and Technology publisher,1999.
[3]全国油茶产业发展规划(2009-2020),15。
[4]周仲明。林木病理学[M]。北京:中国林业出版社,1990:117-119。