Simple diagnosis and Control of "withered Heart" in Rice

1. Simple diagnosis of rice "withered heart" 1. A "withered heart" caused by pests. Chilo suppressalis, Chilo suppressalis and mole cricket can all cause "withered heart". The main differences are as follows: (1) Chilo suppressalis: large wormhole, many insect feces, and feces are generally arranged between rice leaf sheath and stem. The stem, leaf sheath and leaves of the killed rice turned yellow. The harm is more serious at the edge of the rice field and lighter in the middle of the field. (2) Chilo suppressalis: after hatching, the young borer first gathered on the inside of the rice leaf sheath to feed, and water-stained macula appeared on the outside of the damaged leaf sheath, and then gradually yellowed.

Occurrence and Control of withered Heart Disease in Rice

Key points of cultivation techniques for dry raising rice seedlings 1. Applying sufficient base fertilizer: combined with deep ploughing or irrigation level fields, 30-40 kg ammonium bicarbonate and 20-25 kg calcium per mu are applied as medium fertilizer at one time, and the former broad bean field should be used more. Vegetable or potato fields should be less. Second, insert thinly at the right time.

Prevention and treatment of Leaf withering of Chinese chives

Prevention and treatment of Leaf withering of Chinese chives

Rich bamboo culture: what is rich bamboo withered leaf disease?

What is the withered leaf disease of rich bamboo? What harm does withered leaf disease do to rich bamboos? What are the control methods of withered leaf disease? Hope that experienced friends can help introduce the harm of leaf blight of rich bamboo: the phenomenon of leaf tip blight of rich bamboo is infected with leaf tip blight of rich bamboo. Withered leaf disease mainly harms the middle and lower part of rich bamboo.

Confused spot blight, stem withered, green withered, withered. What does it have to do with all kinds of withering?

Spot blight, leaf blight, stem blight, vine blight, standing blight, green blight, wilt. Seeing so many "blight" diseases, do you feel that your brain has been confused? Moreover, many diseases are similar to each other in terms of symptoms. For example.

What is the cause of eggplant leaf withering?

Eggplant in the successful transplanting or planting process, the leaves often wither phenomenon, if not timely treatment, there is likely to be dead seedlings, then what is the cause of eggplant leaf withering? What is the reason for the withering of eggplant leaves? Eggplant leaves withered

The reason why Phalaenopsis does not blossom or wither

It takes about 2 years for Phalaenopsis to blossom from seedling to flower, and most adult plants blossom around the Spring Festival every year. However, the Phalaenopsis cultivated by some flower growers simply do not bloom, or although they form buds, they are withered and yellow, which deeply disappoints many flower friends. The main reasons are as follows: the air of ① cultivation is dry.

What kind of pesticide does lotus root leaf wither use?

The common diseases of lotus root are: rot, leaf blight, leaf spot and so on. Today, let's talk about what kind of pesticide is used to spread the withered lotus root leaves, which is the biggest headache for everyone. Let's take a look. 1. Symptoms of lotus root leaf blight: generally speaking, lotus root leaf wilt is leaf blight.

How to raise the plant withered and how to do

Cymbidium is a highly ornamental plant, its main ornamental point lies in the leaves, how to raise it? Plant wilt how to do: how to raise the thousand-leaf orchid: 1. Chiba prefers a semi-shady environment and needs plenty of sunlight in the process of growing. But it should be noted that the light is too strong or insufficient.

Leek planting: why the leek withered leaves? How to prevent and cure

Why are the leeks withered? How to prevent and cure it? Please introduce the causes and control methods. Leaf drying often occurs during the growing period of leek, which is mainly caused by blight and gray mold, and some are caused by physiological diseases. Can refer to the following method to carry on the prevention and control: the withered leaf blight caused by the blight is the main of the protected leek.

How to do sunflower leaf wilt, pay attention to leaf blight / insufficient nutrients / planting methods

If you want to comment on the best plants, many people will think of sunflowers, but some people find that their sunflower leaves have withered, so some people don't know what to do. In fact, it can be saved if reasonable measures are taken.

What to do about the withering of the leaf tip of Cymbidium? the cause of leaf tip yellowing and wilting

Rhododendron, hanging orchid, green radish leaf tip withered and dried yellow three ways to make it green and shiny

Cuckoo, hanging orchid, green radish leaves are evergreen all the year round, very elegant. However, their leaves often appear leaf tip withering, dry yellow, falling, not only affect the beauty, but also affect their growth. Therefore, in the maintenance should be based on their growth.

When does the spring grass blossom? Four ways to solve the problem of withered and yellow leaf tips!

Spring grass is a kind of succulent plant that looks like a spring. It is deeply loved by people because of its smooth leaves and fragrant flowers. It is very suitable for growing small potted plants. When will the spring grass bloom? What if the tip of the leaf withered? 1. Introduction of spring grass:

What is ginseng white leaf withered?

What is ginseng white leaf withered? Please introduce the symptoms of white leaf blight of Panax ginseng: it is more common in one year and two years of general ginseng. Ginseng leaves fade from leaf tip or edge, water immersion spreads to leaf stem, leaves after chlorosis are white or light yellow, some leaves are like white paper after chlorosis, and it is not easy to break by hand.

The killer of scientifically raising orchids rotted and dried up.

Carry forward the national orchid culture, spread the orchid knowledge orchid, your good teacher on the orchid road so-called soil infectious disease refers to the germs are mostly transmitted from the matrix materials, this kind of disease has one of the biggest characteristics, they for orchids.

Three methods to prevent Leaf Tip withering of Cymbidium

Hanging orchid, evergreen all the year round, hanging indoors, can be called "flowers in the air". It takes stolons from the axils of leaves and produces many small plants with roots, which droop along the basin and are very elegant. Hanging orchid is also known as indoor air "purifier", it can absorb carbon monoxide, nitrogen peroxide and other volatile gases, so that the indoor air is purified, which is beneficial to human health. However, the orchid is often easy to wither at the tip of the leaf, affecting the viewing. Therefore, prevention and control should be carried out according to the situation. Always pay attention to watering, spraying and keeping the basin

How to control dry-tip disease of green onion with albino and withering of leaf tip

How to control dry-tip disease of green onion with albino and withering of leaf tip

Causes and Control measures of withered leaves of Lotus Root

Causes and Control measures of withered leaves of Lotus Root

The orchid leaves blacken and wither from the roots. There are three reasons why the orchid leaves can be treated in this way.

There are usually three cases in which the leaves of orchids turn black and wither from the roots. First, natural degradation. Second, leaf blight. Third, stem rot. First, natural degradation. In our farmed orchids, each leaf on the false bulb has its own.