What to Do About Dead Ginger Plants? An Introduction to the Latest Control Methods
The phenomenon of dead ginger plants is very common for many growers, and what is commonly seen is patches of dead plants. Dead plants occur severely in soil that has been planted for many years. In fact, dead ginger plants are mainly caused by diseases. Of course, there are also some environmental triggers. So to treat the dead plant situation, how should it be treated? Next, let us look at the causes and understand the treatment methods.
1. Bacterial wilt
Bacterial wilt is ginger blast, and people usually call this disease simply rotten ginger. The symptoms show the ginger pieces turning dark brown, then gradually becoming yellowish brown and beginning to rot; after severe rotting there will be white rotten juice with a foul odor. After the disease develops, the plant gradually loses its green color, withers, and finally lodges. If a few diseased plants are found, they can be dug out and burned, the soil disinfected, and the whole field sprayed with chemicals. If quite a few cases occur, a 20% bismerthiazol wettable powder 800-fold solution, or a 20% quinone water agent, can be used for root drenching; root drenching about once a week, with more than three times giving good results.
2. Fusarium wilt
Ginger Fusarium wilt is a soilborne bacterium, mainly caused by the strain and by latent bacterial infection in the soil. The disease occurs severely in damp, shady environments. After the disease develops, the ginger pieces turn brown and rot; unlike ginger blast, they carry mycelium, and the rotten ginger pieces have transparent juice with no foul odor. The aboveground part will eventually die as well. Use a 50% carbendazim 800-fold solution or a 70% thiophanate-methyl wettable powder 800-fold solution for root drenching; root drenching can be done once every 5 days, and drenching more times gives a more obvious effect.
3. Root rot
After the disease develops, yellowish brown lesions appear on the stems and leaves, which later rot into a water-soaked green. Then the infection continues downward, gradually rotting, and finally the aboveground part withers and dies. The inside of the stalk at the base of the stem also rots, and white moldy growth appears at the diseased sites. Seed ginger carrying the pathogen, soil harboring the pathogen, and rain causing repeated infection. Use agents such as metalaxyl and copper quinolinate for treatment, also by root drenching. Once a week, about three times.
4. Other causes
Generally, continuous cropping, or too many rounds of continuous cropping, seed ginger carrying pathogens, excessive application of nitrogen fertilizer, and uneven watering will all worsen the dead plant phenomenon. They cause diseases that can lead to dead plants. Excessive humidity and waterlogging will worsen the occurrence of Fusarium wilt, and high temperature and high humidity will also worsen the occurrence of ginger blast. Some moldy growth occurs because of high humidity, and rain will repeatedly worsen the disease.
The dead plant phenomenon in ginger is mainly caused by infection with diseases; some adverse environmental factors will worsen the diseases and cause severe dead plant situations. But generally they can all be reasonably treated.