A preliminary report on <em>Cryphonectia parasitica</em> in Zhejiang Province

MA Liang-jin; YU Cai-zhu; YING Ting-long; WANG Zu-Liang; ZHONG Zhi-hua

Volume 17 Issue 1

Jul. 2017

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Article Navigation > Journal of Zhejiang A&F University > 2000 > 17(1): 63-66

MA Liang-jin, YU Cai-zhu, YING Ting-long, WANG Zu-Liang, ZHONG Zhi-hua. A preliminary report on Cryphonectia parasitica in Zhejiang Province[J]. Journal of Zhejiang A&F University, 2000, 17(1): 63-66.

Citation:

MA Liang-jin, YU Cai-zhu, YING Ting-long, WANG Zu-Liang, ZHONG Zhi-hua. A preliminary report on Cryphonectia parasitica in Zhejiang Province[J]. Journal of Zhejiang A&F University, 2000, 17(1): 63-66.

A preliminary report on Cryphonectia parasitica in Zhejiang Province

1.
Department of Resources and Environment , Zhejiang Forestry College , Lin’an 311300, China;
2.
No.1 Forest Farm of Tonglu County , Tonglu 311500 , Zhejiang , China;
3.
.National Nature Reserve of Mount Tianmu , Lin’an 311311, Zhejiang , China;
4.
Forest Enterprise of Fuyang City , Fuyang 311400, Zhejiang , China

Received Date: 1999-12-04
Rev Recd Date: 1999-12-07
Publish Date: 2000-03-20

Abstract

An investigation conducted for several years shows that Cryphonectria parasitica is very popular in Zhejiang , with more lightly infected cases than heavily infected cases .Poor administration , more disease-or pestinfected shoots and weak shoots contribute to heavy infection .Particularly , heavy damage caused by Taxoscelus curieps can induce the infection of Cryphonectria parasitica .Investigations and observations suggest that for inoculation onto plants that are not wounded , lightly hurt (bark-cutting graft)plants and heavily hurt (bark-lifting graft)plants , the diseased rate is 0 , 20 % and 100 % respectively and the death rate is 33 % and 80 % respectively for diseased plants after one year , which shows that its difficult for Cryphonectria parasitica to infect unwounded or lightly hurt shoots but it does serious damage to heavily hurt shoots of Chinese chestnut .In the region of Hangzhou , Zhejiang , diseased spots that have wintered begin spreading in late February and spread fast from April to June , followed by a slow spread after July .
- Cryphonectria parasitica,
- investigation,
- inoculation test,
- Zhejiang Province

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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A preliminary report on Cryphonectia parasitica in Zhejiang Province

1. Department of Resources and Environment , Zhejiang Forestry College , Lin’an 311300, China;

2. No.1 Forest Farm of Tonglu County , Tonglu 311500 , Zhejiang , China;

3. .National Nature Reserve of Mount Tianmu , Lin’an 311311, Zhejiang , China;

4. Forest Enterprise of Fuyang City , Fuyang 311400, Zhejiang , China

Received Date: 1999-12-04

Rev Recd Date: 1999-12-07

Publish Date: 2000-03-20

Key words:

Abstract: An investigation conducted for several years shows that Cryphonectria parasitica is very popular in Zhejiang , with more lightly infected cases than heavily infected cases .Poor administration , more disease-or pestinfected shoots and weak shoots contribute to heavy infection .Particularly , heavy damage caused by Taxoscelus curieps can induce the infection of Cryphonectria parasitica .Investigations and observations suggest that for inoculation onto plants that are not wounded , lightly hurt (bark-cutting graft)plants and heavily hurt (bark-lifting graft)plants , the diseased rate is 0 , 20 % and 100 % respectively and the death rate is 33 % and 80 % respectively for diseased plants after one year , which shows that its difficult for Cryphonectria parasitica to infect unwounded or lightly hurt shoots but it does serious damage to heavily hurt shoots of Chinese chestnut .In the region of Hangzhou , Zhejiang , diseased spots that have wintered begin spreading in late February and spread fast from April to June , followed by a slow spread after July .

A preliminary report on Cryphonectia parasitica in Zhejiang Province

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