Prevention and Cure Technology of Korla Fragrant Pear Valsa Canker
《北方园艺》[ISSN:1001-0009/CN:23-1247/S]
- Issue:
- 2018年14
- Page:
- 25-30
- Research Field:
- Publishing date:
Info
- Title:
- Prevention and Cure Technology of Korla Fragrant Pear Valsa Canker
- Author(s):
- ZHANG Ping1; HOU Beiyuan2; XUE Gensheng1; LYU Hua2; WANG Yan1; WANG Shutong2
- (1.Agricultural Scientific Institute of 2nd Division,Xinjiang Production & Construction Corps,Tiemenguan,Xinjiang 841005;2.College of Plant Protection,Hebei Agricultural University,Baoding,Hebei 071001)
- Keywords:
- pear valsa canker; integrated control; fungicides; scraper
- PACS:
- -
- DOI:
- 10.11937/bfyy.20174276
- Abstract:
- Valsa canker seriously occured and difficult to be control,is an important disease of Korla pear.Botanical fungicide Junqing was tested on the control effect against pear Valsa canker in this study,and compared with the commonly used fungicides 3% thiophanate methyl and Rot killer(2.12% HA-Cu).The control effect of Junqing+0.025% Beta cypermethrin was tested for the control effect against pear Valsa canker either.At the same time,the canker lesion curettage tool Fan′s scraper was tested for its healing rate after scaling,and compared with the commonly used scrapers in Korla pear growing area.Finally,the integrated control technology that combined several single control technologies was tested its control efficacy against pear Valsa canker.The results showed that the curative ratio of Junqing treatment was 86.67%,better than that of the fungicides controls thiophanate methyl and 2.12% HA-Cu,and the callus width increased by 81.15% compared with untreated control.When the canker lesions treated with Junqing+0.025% Beta cypermethrin,the infested lesion rate of Euzophera pyriella decreased by 15.82 percentage points,and the curative rate was increased by 16.91 percentage points.Junqing+0.025% Beta cypermethrin treatment increased the control effect of Euzophera pyriella by 49.71% compare with that Junqing treatment.Compared with conventional scraper,Fan′s scraper had better curative rate,and the healing ratio increased by 13.14 percentage points.Integrated control test results showed that the integrated control technology had better control efficacy compared with the conventional control methods,the highest control efficacy reached 95.65%.The control efficacy in the three tested orchards improved by 8.73 to 30.20 percentage points compared with the conventional control methods.
Last Update: 2018-08-16