How to control tuber rot of Pinellia ternata

The tuber rot of Pinellia ternata has caused huge losses to the production of Pinellia ternata, so we must control the tuber rot of Pinellia ternata in order to ensure the production benefit of Pinellia ternata. What are the disease characteristics of Pinellia ternata tuber rot? Let's get to know it with the editor.

Symptomatic characteristics of tuber rot of Pinellia ternata

At the initial stage of pathogen infecting Pinellia ternata tuber, irregular black spots appeared around the tuber, which expanded rapidly. After 3-4 days, a large number of bacterial spots connected together and continued to infect the tuber. At this time, the root system of Pinellia ternata began to atrophy, and the aboveground leaves gradually changed from green to yellow and withered. A week later, the tuber of Pinellia ternata showed a round blister, like a ripe grape, the tuber was full of black water, and the whole plant died, leaving only a thin skin. The spread of bacteria will quickly infect other Pinellia ternata tubers, causing the whole Pinellia ternata to rot in a short period of time, and the soil and air of cultivated Pinellia ternata give off a fishy smell.

Control methods of tuber rot of Pinellia ternata

1. To select varieties to plant Pinellia ternata, we should choose Pinellia ternata varieties with strong disease resistance and vigorous growth, such as "narrow clover", "willow leaf shape" and so on, and select disease-free tubers or bulbs as seed stems.

2. Before sowing, the selected seed stem must be treated and disinfected, such as seed drying and chemical dressing, so as to prevent the seed stem from carrying bacteria.

3. Land selection must choose loam or sandy loam, PH value between 6.5 and 7 to plant Pinellia ternata, and this land has not occurred root rot or rot disease before. In rainy areas in autumn, the selected plots should have a slope of 20%. For plain areas and flatter plots, every other interplanting bed should be left with a drainage ditch of 30 cm wide and 30 cm deep when planning for the early stage of cultivation of Pinellia ternata. To ensure that in case of continuous rainy weather, the water in the soil of the Pinellia ternata can thoroughly infiltrate into the drainage ditch and discharge the plot in time.

4. remedial measures should be carried out in various forms and times of ploughing and loosening the soil when the soil is wet and rainy, so as to break the soil lamination, remove harmful gases from the soil, and enter fresh oxygen in the air. increase the exchange of gas in the soil and air, this measure can effectively prevent and reduce the occurrence of rot.

5. In the middle and later stages of the growth of Pinellia ternata, if you encounter continuous rainy weather and high soil moisture, you should frequently check the growth of Pinellia ternata, and if you find that some of the Pinellia ternata plants are rotten, in this case, no matter whether it comes to the ploughing season or not, it should be harvested in time, without delay, otherwise, the tubers rot very quickly, the ones that rot first are big, and then those that rot are small, resulting in reduced production or even no yield. At the same time of emergency harvest, the tubers of Pinellia ternata harvested from the wet mud should be peeled and processed immediately, so the interior of the fresh tubers is still rotting, if not processed, most of the tubers will rot after 1 or 2 days.

Efficacy and function of Pinellia ternata

1. Antitussive and expectorant effect

Pinellia ternata is pungent, warm and dry, which is essential for dryness, dampness and resolving phlegm, and cough and phlegm caused by a cold can be treated with Pinellia ternata.

Second, the effect of stopping vomiting

Pinellia ternata taste bitter and stomach, is a very good antiemetic drug, all kinds of vomiting, can be used with syndrome, the curative effect is very significant.

Third, reduce swelling and relieve pain

External use of Pinellia ternata can treat sores, swelling, poison and snake bites. It plays a great role in reducing swelling and relieving pain.

IV. The effect of anti-early pregnancy

Pinellia ternata is considered to be one of the effective components or effective components against early pregnancy in Pinellia ternata.

5. sedative and hypnotic effect

75% ethanol extract of Pinellia ternata was given to mice by intragastric administration, which could significantly prolong the latency of tail flick response to thermal pain stimulation in mice, reduce the number of writhing reaction caused by acetic acid, and had a good sedative and hypnotic effect.

VI. Inhibition of glandular secretion

Intraperitoneal injection of Pinellia ternata preparation had a significant inhibitory effect on the saliva secretion induced by pilocarpine. It was also reported that when the decoction was taken orally, the saliva secretion increased at first and then decreased.

For chest pain, chest stuffiness, chest arthralgia, chest knots and other diseases.

Pinellia ternata has the function of Xin San Wen Tong, resolving phlegm, dryness and dampness, so it can be used for internal obstruction of phlegm, stuffy chest, tangerine peel, Poria cocos and so on.

What kind of land do you choose to plant Pinellia ternata

The main results are as follows: 1. Choose sandy loam or loam soil with moist and fertile soil, strong water and fertility conservation, loose texture, good drainage and irrigation, neutral reaction, or gentle slope mountain area with half shade and half sun.

2. In order to plant Pinellia ternata in the plain area, it is necessary to select the land that can be irrigated and drained, and the drainage ditch must be dug before planting.

3. After selecting the land, from October to November in winter, the 20cm of the land will be turned deeply to remove gravel and weeds to make it weathered and mature.

Pinellia ternata may not be familiar with it, it is a kind of Chinese herbal medicine, it has a very good conditioning effect on many diseases of the human body, but there are not many people who may know it at present, and its application is not particularly extensive. There is still a lot of room for market development.