The Latest Methods for Controlling and Managing Rice Pests and Diseases
Rice is the staple food for most people in our country, and it is grown on a very large area in our country. It is an indispensable food crop, and when growing rice, pests and diseases are a problem that gives many farmers a real headache. Pests and diseases can seriously affect the yield and quality of rice, so how exactly should we control them? In fact, the main approach is to strengthen management with prevention as the priority, so below the editor will introduce to you how to manage rice and prevent pests and diseases. Let's take a look!
1. Optimize fertilization
When fertilizing, we must pay attention to controlling the application of nitrogen fertilizer; nitrogen fertilizer must never be applied in excess. If there is too much nitrogen fertilizer, it easily causes rice to develop various diseases such as sheath blight and leaf blight. It can also trigger pests such as leafhoppers and rice planthoppers. Therefore, we must optimize the fertilization structure. At the booting stage of rice, apply about two kilograms of urea. Later, spray urea solution on the leaves, and also combine it with an appropriate amount of phosphorus and potassium fertilizer to enhance the disease resistance of the rice.
2. Water management
Although water is very important for the growth of rice, we must pay attention to controlling the water level when planting. During the transplanting period, the water level should be raised appropriately to protect the seedlings, and then during the booting and heading stages, the water level should also be raised appropriately. During other growth periods, attention should be paid to controlling the water level well, mainly alternating between dry and wet. Appropriately lowering the water level and irrigating more with small amounts of water can effectively prevent diseases such as sheath blight and rice blast. It should also be noted that the pathogens of some diseases can spread with water, so care should be taken to avoid water flowing between fields. In the rainy season, drain water in time to prevent it from overflowing the rice field.
3. Microbial pesticides
When using pesticides, microbial pesticides should be given priority, because microbial pesticides have relatively strong effects, low toxicity, and basically no residue, and should be vigorously used on high-quality rice. Different pesticides are used for different pests and diseases. For example, Beauveria bassiana powder has a very good control effect on rice skipper and leaf roller. Agents such as blasticidin have a relatively good effect on rice blast. Therefore, according to the actual situation of planting, we should reasonably select microbial pesticides to achieve the best control effect.
4. High-efficiency, low-toxicity pesticides
Chemical pesticides are in fact also an indispensable type of agent for controlling pests and diseases, especially when sudden outbreaks occur, the control effect of chemical pesticides is very obvious. However, attention should be paid to the choice of pesticide, mainly choosing high-efficiency, low-toxicity varieties. For example, Miebingwei, Yekuning, and others. Moreover, when using them, attention must be paid to the dosage and the concentration of the pesticide; when the disease situation is minor, spot treatment is best. Finally, we must also strictly control the safe interval period before use.
5. Ecological balance
When controlling insect pests, we can use the natural enemies of some pests, using natural enemies that are not harmful to rice for control. For example, frogs and others. The vast majority of a frog's food consists of pests, so we can release an appropriate number of frogs into the rice field. As long as the number of frogs is sufficient, it is better than all pest control methods, so farmers with the conditions can appropriately give it a try.
The above is a brief introduction to how to manage rice and control pests and diseases. The management work for rice is very important and has a great relationship with yield and quality, so everyone must pay a lot of attention. That is all for today's introduction. This article is for reference only. Thank you for reading and supporting!