The death of ginger is a very common phenomenon. Do you know what caused it?

1, Ralstonia solanacearum is ginger blast, which is usually called immediately rotten ginger. The main manifestation of the disease is that ginger pieces are brown and black, and then slowly turn brown and gradually rot. After serious decay, white rotten juice will appear, which contains peculiar smell. After the onset, plants slowly lose their green color, wither and eventually fall down. Found a very small number of diseased plants, can be dug up for harm, soil disinfectant, spraying drugs everywhere in the field. A little too much. The root can be irrigated with 800 times aqueous solution of 20% dicumuron wettable powder or 20% quinazol bacterial solution, and the effect is very good once or more than three times a week.

2. Ginger Fusarium wilt is a pathogen of Fusarium wilt. The key reason is that bacterial infection is hidden in the soil layer. The disease will be more serious in wet conditions. After the onset, ginger pieces will turn brown and rot. Unlike ginger plague, it contains fungi. The rotten ginger juice is transparent and has no peculiar smell. Part of the land will eventually wither. Root irrigation with 800 times aqueous solution of 50% triadimefon and 800 times aqueous solution of 70% thiophanate-methyl wettable powder can be done once every five days, and the effect is obvious.

3. After the outbreak of root rot, leaves and stems will produce brown spots, and then they will rot into soaked turquoise. Then I feel depressed and slowly rot away, and eventually part of the ground will wither and die. The inside of the stem at the bottom of the stem will also rot, and there are white moldy substances at the diseased position. There are many bacteria in ginger, and there are bacteria in soil layer and precipitation, which causes repeated infections. Use metalaxyl, copper quinoline and other drugs for diagnosis and treatment, and irrigate the roots as well. Once a week, up and down three times.

4. For other reasons, continuous planting is common, or the frequency of continuous planting is too high. The planted ginger contains pathogenic bacteria, too much base fertilizer and uneven watering will aggravate the problem of dead trees. Causing diseases that can kill trees. If the environmental humidity is too high, the stored water will aggravate the occurrence of Fusarium wilt, and high temperature and high humidity will also aggravate the occurrence of ginger blast. Because high humidity will produce some moldy substances, precipitation will continue to aggravate the disease.