How to treat common diseases of turmeric

Ginger is a common vegetable in life, almost every family will eat every day, many areas are planted, and during the planting period, there will be various diseases, then ginger common diseases how to cure?

1. Ginger blast

Symptoms: ginger blast is one of the main diseases of ginger, ginger will generally reduce production by 20%-30% after infection, serious will reduce production by 80%, great harm. This disease mainly harms the rhizome of ginger. When the disease occurs, water-stained spots appear on the diseased part. With the development of the disease, the spots become yellow brown and lose luster. The internal tissues begin to rot. It is best that the plants die due to loss of absorption capacity.

Prevention and control methods: the disease is mainly caused by pathogen infection, so in planting ginger and soil disinfection treatment, eliminate bacteria, watering with clean water, application of pollution-free fertilizer. Discovered diseased plants should be pulled out of the field and burned in time, and the diseased points should be disinfected. In the outbreak period of the disease, they can be treated by root irrigation with pesticides such as trimethoprim, genhuoling, dikesong and junkang.

2. Rot disease

Harm symptoms: When the rot disease occurs, the leaves of ginger will turn yellow, slowly shrink and dry, and finally lead to the death of the whole plant. Usually, the roots of the plant will become soft after the disease, until it rots, and there is a stench.

Control methods:

(1)To carry out reasonable rotation, it is necessary to return to the original field to plant ginger at an interval of more than 3 years.

(2)Select seeds carefully, don't leave seeds for diseased ginger.

(3)Both base fertilizer and topdressing should pay equal attention to nitrogen, phosphorus and potassium, especially potassium fertilizer.

(4)In the early stage of ginger rot disease, the central diseased plant should be pulled out early, and the nest should be disinfected with lime or diluted with 50% diethamb 1000 times or antibacterial agent 401 800 times for 2-3 times.

3. Spot disease

Harm symptoms: spot disease mainly harm leaves, when the disease occurs, leaves appear fusiform or oblong spots, the edge of the spots is brown, the middle is yellow-white, easy to perforate, to the late stage of the disease, a large number of small black spots appear, in serious cases, leaves are covered with large and small spots. Its pathogen is ginger leaf spot mold, infectious strengthen, can borrow wind and rain transmission, in warm and humid, interplant depression cover, field humidity environment easy to come on.

Control methods: reasonable rotation, avoid continuous cropping, increase organic fertilizer, improve plant disease resistance, in the early stage of disease, can spray thiophanate-methyl WP, chlorothalonil WP and other chemical control.