What are the common pest and disease control methods for water bamboo?

Water bamboo is also known as gaosun, and it is a common vegetable on our dining tables. The yield per mu of water bamboo far exceeds that of ordinary vegetables; under good growing conditions, it is generally around 1500 kg per mu. However, many pests and diseases occur during cultivation, and when they are severe, they can lead to reduced yield and lower quality, and in worse cases even total crop failure. So how do you control pests and diseases in water bamboo? Below, Qinnong.com brings you the common pest and disease control methods for water bamboo.

1. Rust disease

Rust disease, also called blast disease, mainly harms the leaves and stems of water bamboo, and it occurs in the high-temperature summer season. In severe cases, it can cause the entire water bamboo plant to wither and die. In the early stage of the disease, yellow spots appear on the leaves, and as the disease develops, the whole plant finally turns yellow and withers, spreading to the stems and affecting yield.

Control methods: Plant at a reasonable density, control the spacing between plants and rows, and strengthen field ventilation management. When the disease occurs, peel off the dead and yellow leaves, irrigate with water to lower the temperature, and appropriately apply some potassium fertilizer to improve disease resistance. Then spray with diluted Baume degree lime-sulfur mixture for control.

2. Sheath blight

Sheath blight occurs under conditions of excessive nitrogen fertilizer application and dense growth, and the infection rate is higher and the disease more severe in high-temperature and high-humidity environments. In the early stage of the disease, water-soaked lesions appear on the leaf sheaths, gradually spreading and expanding into cloud-like patterns, and the leaves wither. This is also the origin of its name.

Control methods: Fertilize scientifically and reasonably, avoid biased application, and control growth density and humidity. In the early stage of the disease, promptly peel off diseased leaves or pull out diseased plants, then spray with Jinggangmycin water-soluble powder for control.

3. Leaf spot

Leaf spot mainly occurs in environments with poor ventilation. When the disease occurs, prismatic spots appear on the leaves, and over time the leaves gradually turn yellow and wither, affecting the formation of the edible stem, leading to reduced yield and lower quality.

Control methods: Strengthen ventilation management in the field, apply potassium fertilizer to improve disease resistance, and in the early stage of the disease also cut off diseased leaves, then spray carbendazim for control. If the disease is relatively severe, spray once every week for control, for 3-4 consecutive times, and it can be cured.

4. Aphids

Aphids mainly harm the leaves, attaching to the leaves and sucking the sap from water bamboo leaves, often leaving small spots on the leaves, and in severe cases causing the leaves to become hollow or break.

Control methods: Remove weeds near the water bamboo and pick off old leaves to reduce the number of aphid eggs. At the peak period of aphids, peel off the old leaves, then spray a professional insecticide for control, spraying once a week, which can achieve a control effect.

The above are the common pest and disease control methods for water bamboo brought to you by Qinnong.com. From the above content, we can see that most diseases are related to ventilation, so in order to reduce the occurrence of diseases, it is necessary to plant at a reasonable density and strengthen field management.