Many ginger plantations in Ky Son died en masse.
(Baonghean.vn) - Currently, a series of ginger plantations in Nam Can, Huoi Tu, Na Ngoi communes... have appeared with ginger root rot and blight disease with a common density of 3-5%, in some places 8-10%.
In 2021, the whole Ky Son district planted about 600 hectares of ginger, which has now grown 5-7 leaves. However, from June 2021 until now, manyginger plantationIn this remote district, there has been a phenomenon of ginger leaves being burnt, roots rotting and dying en masse.
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| Nam Can commune officials check the disease status on ginger plantations in Tien Tieu village. Photo: Gia Huy |
In Document No. 66/TTDVNN dated June 4, 2021 of the Ky Son District Agricultural Service Center sent to the People's Committees of communes in the district, currently, a series of ginger plantations in Nam Can, Huoi Tu, Na Ngoi communes... have appeared with ginger root rot and blight disease with a common density of 3-5%, in some places 8-10%.
Ginger leaf blight is caused by the fungus fusarium.The disease is a grayish-white diamond-shaped spot that can coalesce and burn the entire leaf, usually appearing at the top or edge of the leaf, forming a burning patch that spreads into the leaf blade. Severe disease can cause most of the ginger leaf to be burnt, with few and small tubers. The fungus often causes damage on days with high humidity, little sunshine, rain and fog.
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| Due to fungal and bacterial infections, ginger plants have yellow leaves, rotten roots, tubers and flowers. Photo: Ngoc Khanh |
There are two types of tuber rot: dry rot caused by fungus and tuber rot caused by bacteria Erwinia carotovora. The fungus attacks the base of the plant near the ground, most of the lesions tend to spread down to the base, causing part of the tuber to rot. Bacterial tuber rot is different from dry rot caused by fungus, in that the tuber becomes soft and mushy. The leaves of the plant turn yellow and collapse.
Mr. Tho Ba Co - land and agriculture officer of the Commune People's Committee said that Nam Can has a total of 157 hectares of ginger planted with the participation of people from 6 villages, of which the largest is Truong Son village with 58 hectares, Tien Tieu village with 53 hectares. However, currently, many ginger gardens of people in the 6 villages have signs of leaf burn, withering, root rot, and black tubers, estimated at about 45 hectares.
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| Nam Can Commune has 45/157 hectares of ginger dead. Photo: Gia Huy |
Estimated damage caused by fungal bacteria to plantationsginger in Ky SonAbout 45.86%, many households like Mr. Ho Ba Ma's family in Tien Tieu village have invested hundreds of millions of dong and are now facing the risk of losing everything.
The staff of the District Agricultural Service Center has surveyed this situation in many ginger fields, instructing people on how to prevent diseases on ginger plants. Specifically, they have instructed and advised people to clean their fields after harvesting, choose disease-free varieties, and not grow ginger continuously for many years on the same area.
Plant at moderate density, and when weeding and caring, limit the wounds on the stem and leaves. When detecting disease spots on leaves, remove them to limit the spread. At the same time, spray the appropriate pesticides according to the instructions for each type of disease, and rotate crops properly to cut off the source of disease in the soil.
When processing ginger for seeds, remove any parts that show signs of rotting; use Eddy 72WP fungicide 50g mixed in 10 liters of water; then soak the ginger seeds in the solution for 15-30 minutes before planting to remove fungus.