Prevention And Treatment Of Ginger Blast Of Ginger

Also known as rot disease or bacterial wilt, it is a devastating disease that is the most common in ginger production and occurs in various regions. In the affected plots, the yield is generally reduced by 10%-20%, and the production in severe cases is reduced by more than 50%, or even abortion. The disease is a bacterial disease, which mainly damages underground stems or roots. Generally, the underground stems close to the ground are infected first. The fleshy stems are damaged and become water-stained, yellowish-brown, and dull. The internal tissues gradually decay, leaving only skin sacs. Squeezing the diseased part can produce dirty white, rice-like, and foul-smelling juice. The roots are diseased, initially water-stained, then yellowish-brown, and finally rotted. The above-ground stems are dark brown when damaged, the internal tissues are rotten, and only fibers are left. The damaged leaves are withered, the leaves are pale yellow, and the edges are curled until the whole plant droops and died.

The prevention method is:

⑴ Agricultural measures: Retain seeds from disease-free fields or select ginger seeds; because the ginger blast pathogen can survive in the soil for more than 2 years, crop rotation and stubble replacement is an important way to cut off soil disease, and the diseased plots should be separated by 2- Ginger can be grown for more than 3 years, and the previous crop should be a new crop or a grain crop or green onion and garlic crop. And solanaceous crops such as tomatoes, eggplants, peppers, potatoes, etc., especially the plots where bacterial wilt occurred in the previous crop, should not be planted with ginger.

(2) Ginger disinfection: Soak the seeds with 72% agricultural streptomycin soluble powder 4000 times solution or neophytocin 4000-5000 times solution for 48 hours before sowing.

⑶Pharmaceutical control: After the occurrence of the central diseased plant, use 72% agricultural streptomycin soluble powder 4000 times solution, or 47% garinon soluble powder 750 times solution or 50% metasynium 1000 times solution to irrigate the roots, each plant with 250ml of medicine , Once every 10-15 days, 3-4 times in a row.

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