MySheen

Common Tea Diseases in China

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, There are more than 100 kinds of recorded tea plant diseases, and more than 30 kinds of common diseases. 1. Nearly 40 leaf diseases have been recorded. Tea leaf diseases mainly include: tea cake disease, which occurs seriously in high mountain tea gardens in southwest tea areas; tea white star disease and tea round red star disease, which are seriously affected in high mountain tea gardens in east and southwest provinces under low temperature and high humidity conditions; tea bud blight is one of the common and important diseases in zhejiang and hunan provinces. The diseases of mature leaves and old leaves include tea cloud leaf blight, tea ring spot, tea anthracnose and tea brown

More than 100 kinds of tea diseases have been recorded, and more than 30 kinds of common diseases have been recorded.

1. Nearly 40 kinds of leaf diseases have been recorded.

The main bud leaf diseases are: tea cake disease, which occurs seriously in alpine tea gardens in southwestern tea areas; tea white spot disease and tea round red spot disease, especially in alpine tea gardens in eastern and southwest China, suffer seriously under the condition of low temperature and high humidity; tea bud blight is one of the common and important diseases in Zhejiang and Hunan provinces.

Adult and old leaf diseases such as tea moire leaf blight, tea ring spot, tea anthracnose, tea brown leaf spot, tea coal disease, tea red leaf spot and so on are common in various tea areas in China. The diseased leaves fall off easily, resulting in the decline of the tree.

About 30 kinds of stem diseases have been found. The main species commonly occurring in tea areas are tea branch tip black spot disease, tea carcass blight, tea gray plaster disease, tea branch black mole disease and tea moss and lichen. There is also tea branch cancer in the southwest tea area. South China and Anhui and Hunan have tea red algae disease, tea black rot and tea line rot.

More than 30 kinds of root diseases have been recorded.

The main species are tea seedling root knot nematode disease, tea seedling white silk disease, tea root rot. It often causes the whole plant to die.

Adult root diseases include red root rot, brown root rot, black root rot and purple root rot.

Second, there are few kinds of flower and fruit diseases. Only flower rot (Botrytiscinerea) is common. Fruit diseases include moire leaf blight and ring spot.

Tea plant is a perennial evergreen crop, with dense canopy, small microclimate change, stable environmental conditions and abundant pathogenic microflora. Many tea plant diseases pose a serious threat to some areas. Tea cake disease, tea white spot disease, tea round red spot disease and other low-temperature and high-humidity diseases are often found in tea areas with higher elevations. The harm of tea root rot, tea black rot and tea line rot is more serious in the tropical and subtropical tea areas of South China. Nowadays, the extensive use of nitrogen fertilizer has changed the composition of amino acids in tea, and the tissue structure of tea is soft, which is conducive to the infection of bacteria, resulting in an increase in the number of leaf diseases.

 
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