Dynamics of major diseases and pests in middle and late rice
Release time：Jul 28,2022
The dynamics of major pests and diseases in mid- and late-rice are a matter of concern because they directly affect rice yield and quality. The following will elaborate on the occurrence dynamics of major pests and diseases in middle and late rice.
I. Rice fly
Rice fly is one of the major pests in the growth process of rice. In the growing season of middle and late rice, with the gradual decrease of temperature, the breeding and migration activities of the rice fly gradually intensify. Rice fly is mainly harmful in the middle and late stages of rice growth, and it gathers on the rice plant to suck the sap, resulting in the loss of rice nutrients, and in serious cases, it even causes the rice plant to wither and collapse. Therefore, in the middle and late rice growing season, the control of rice fly is particularly important.
Second, the leaf borer
The leaf roller is another common pest of middle and late rice. They feed on the leaves, causing leaf curling on rice leaves, affecting photosynthesis and growth and development of rice. As the temperature drops, the reproductive activities of the leaf roller will gradually intensify. Therefore, in the middle and late rice growing season, the monitoring and control of the leaf roller also need to be strengthened.
Rice Fever
Rice blast is one of the important diseases in the growing process of rice. In the middle and late rice growing season, with the change of climate environment, the risk of rice blast disease will also increase. Rice blast mainly affects the leaves and spikes of rice, and in severe cases, it can cause the entire rice plant to die. Therefore, timely monitoring and control of rice blast is the key to guarantee the yield of middle and late rice.
Blight
Blight is another common rice disease. It mainly causes plant disease by infecting the stem of rice. As rice grows and the climate changes, the occurrence of blight will gradually intensify. Blight reduces the yield and quality of rice, so control of blight is also an important part of mid- to late-season rice management.
In general, the main pest and disease dynamics in mid- to late-season rice include rice fly, rice leaf borer, rice blast and blight. In order to safeguard the yield and quality of rice, farmers and technicians need to pay close attention to the occurrence of pests and diseases and take effective control measures. This includes regular monitoring, rational use of pesticides, and improved field management, among other measures, to ensure healthy growth of middle and late rice.
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