Control methods of common diseases of Schizonepeta tenuifolia

Schizonepeta tenuifolia is a kind of edible and medicinal plant, its planting prospects and benefits are very considerable, coupled with its environmental adaptability, it can grow in all parts of the country, so it is cultivated in all regions of the country. However, when planting, we should pay attention to daily management, especially the prevention and control of diseases. Let's take a look at the disease control techniques of Schizonepeta tenuifolia.

1. Root rot

It is a fungal disease, which usually occurs in the high temperature and rainy period from July to August, when the environment is very easy for pathogenic bacteria to multiply. When the disease starts from the root system, the aboveground parts will wither rapidly, and the roots and rhizomes will turn black until they rot.

Prevention and control methods: pay attention to drainage and waterlogging prevention measures in the high temperature and rainy season, combine with soil preparation before sowing, spread 1 kg of dimethazone per mu, disinfect the soil and eliminate the pathogens in the soil. In the early stage of the disease, 200 times solution of pentachloronitrobenzene was sprayed to irrigate the root.

2. Blight

It generally occurs in the low temperature and rainy period from May to June, when the temperature is low and the soil moisture is low, which mainly harms the seedlings. When the disease occurs, the stems of the seedlings appear brown water-stained small black spots, gradually expand into large disease spots, and finally become brown, the base of the stem becomes thinner, causing the seedlings to lodge and die.

Prevention and treatment methods: select excellent varieties with strong disease resistance, strengthen field management, make drainage measures, spray Bordeaux solution in advance in case of low temperature and rainy weather, and spray methyl topiramate to prevent and cure the disease.

3. Stem blight

The disease mainly harms stems, leaves, spikes and other parts. After the onset of the disease, watery spots appear as if they had been scalded; after petiole onset, waterlogging spots also appear; after stem disease occurs, waterlogged spots first appear and gradually expand into withered spots around the stem, causing the upper stems and leaves to wither and die and cannot bloom normally.

Prevention and treatment methods: in the onset of the disease, timely spraying carbendazim or methyl thiobacillus solution, once every other week, 3 times in a row, the effect is better.

4. Black spot

The main harm to the leaves, the leaves produce irregular brown spots, gradually expand, and finally lead to the leaf blackening and death, but also spread to the stem, resulting in brown, thinning, and finally drooping and collapsing.

Prevention and control methods: strengthen fertilizer and water management, increase the application of phosphorus and potassium fertilizer, improve disease resistance, and deal with it in time after the disease occurs.

The above is the introduction of the control methods of common diseases of Schizonepeta tenuifolia. I hope it can help you. If you want to know more about it, please pay attention to us.