During the incidence of pests and insects in rice ears and prevention and control technology

The rice ears are important periods for the harm of a variety of diseases and insects, and it is also the most critical period for the prevention of disease -proof insects. Comprehensive analysis of related factors such as field diseases, meteorological conditions, varieties of resistance, etc. The pests and insects are generally moderate to the development trend.

To do a good job of preventing and controlling pests and pests in rice ears is a key measure to ensure the safety of agricultural production and seize the harvest of autumn grain. All localities must effectively strengthen the monitoring and early warning of diseases and insects, increase prevention and treatment of publicity and guidance, and make every effort Strive to control the loss to the minimum.

Comprehensive analysis of the relevant factors of the province's paddy spikes, the "three diseases and one worm", which is mainly based on rice plague, rice song disease, tattooing, and rice longitudinal roll leafya. The risk of ears of rice plague and rice tune disease is greater.

There are three main basis:

The first is the high base of diseases and insects in some areas. In the early stage, the rice plastic and rice song disease, although the early stage was affected by the continuous high temperature, the seedlings of seedling and leaf rice plague occurred in hilly, along the river, along the coast, and Huaibei region. Golden japonica series, Yangnong rice No. 1, etc.) The disease rate of 10-30%, coupled with the full amount of straws in the past year, the field of rice plague and rice germs in the fields are sufficient.

In the early and middle of August, five (3) generations of worm peaks appeared in the fields of southern southern and along the river. According to ovarian anatomy, local feathers were mainly based on the amount of moths in the peak period. 2000-3000 heads; 100-400 heads of ecstatic insects, grains, high 800-1250 heads. Although the amount of moth has declined recently, the amount of eggs in the fields of the area along the river and the local area of ​​Taihu Lake is high, reaching 500-1000 heads, and the field curl rate in the field is 1-5%. In addition, the amount of brown live lice and insects in local areas of southern Jiangsu and along the river rose rapidly, and the amount of insects in Baido was 100 heads, which provided sufficient bases for the 4th generation.

Tattoos, since August, have been affected by high temperature and high humidity climate and environment, and the condition has risen rapidly. Recently, the rate of acupoints in the river, hills and Huaibei generally reached 20-50%, and the diseased plant rate was 10%-20%. The acupoint rate of the disease is 50-90%and the diseased plant rate is 30-50%.

The second is that there are many processed precipitation during the breakthrough. According to the forecast of the meteorological department, after the high temperature was lifted on August 24th, due to the active high-altitude tank, the province's multiple precipitation process had decentralized showers or thunderstorms in the province on 26-27. There will be two precipitation process in the middle and late September and early September. Overall, the breeding of "two relocations" pests such as rice plague, the popularity of rice song disease, and the pests such as rice tunes, and the breeding of pests such as rice tunes are more beneficial.

The third is that the main breed of rice is weak. The main breeds of rice in the province are not resistant to rice plague, and the proportion of planting the planting of rice plastic medical species such as rice plague has expanded year by year; in addition, the complexity and uncertainty of the occurrence of disease insects in the middle of the mid -term are increasing. The process is very different, and the period of the breakthroughs is not neat, which not only increases the probability of encountering rainy weather during the fertility of susceptible diseases, but also conducive to the dangers of pests and insects.

Preparation

In response to the characteristics of pests and insects during rice ears this year, localities should strengthen classification guidance on the basis of strengthening monitoring and forecasts, pay close attention to the implementation of measures, and do not allow the overall wars of the prevention and treatment of spikes.

First, do a good job of monitoring and early warning and information release. It is necessary to close the requirements of "wide face, sufficient quantity, high quality, and high quality", expand the scope and frequency of investigation, and enhance the representativeness and reliability of the investigation, especially to do a good job in the process of rice fertility, and the monitoring and investigation of the "two relocation" pests and insects. , Ensure that the "bottom number is clear, the situation is bright". It is necessary to make full use of automation and intelligent diseases and insect monitoring equipment to improve the intelligent level of monitoring and early warning.

Second, we must adhere to the focus and scientific prevention. Grasp the main object of prevention and control. It is necessary to focus on the main pests such as rice plague, rice tune disease, tattooing, and rice vertical curls. The southern and riverside areas take into account brown live lice, and hills, rivers, coastal and along Huai areas. Grasp the mode of prevention and control. Focus on the early stages of the break and Qi Sui. For areas where rice is about to break the time in the near future, in the early days of the pest, it is necessary to organize the overall battle to prevent and control the overall prevention and control of rice plague, blight, and rice longitudinal rolls.

For areas where the scraps of rumors in early September, the recent combination of rice tune disease prevention, organizing the overall wars of the prevention and control of rice song disease, tattooing, rice longitudinal rolls, etc. Plague, rice vertical roll leaf crickets, etc.

In the duration of rice (5 to 7 days after the break), according to the weather, the resistance of rice varieties and the occurrence of diseases and insects, it is mainly adapt to the overall overall prevention and control of the ears and neck plague. Bacterial diseases such as white leaf blight, if they cannot take into account the above overall battles, they need to be carried out separately. In the late stage of rice production, the occurrence of southern southern and along the river should be based on brown firehms, and we should fight against the closing war according to local conditions to ensure the control of control.

Select the pairing agent. Select the products in the provincial green prevention and control products in 2022, and use biopharmaceuticals and high -efficiency, low toxic and low residues. For a variety of pests and insects, fields can be selected separately, scientifically mixed, one medicine, and disease and insects. Pay attention to safe medication, use triazoline pesticides carefully to prevent drug harm.

For patients with resistance to brown live lice, they need to choose high -efficiency potions according to local resistance levels, and choose complex pharmaceuticals as much as possible. Pay attention to rotating drugs. Comprehensive breeding of rice farmers, mixed planting areas, and aquaculture areas should pay attention to protecting the safety of silkworms and fisheries.

The rice ears are important periods for the harm of a variety of diseases and insects, and it is also the most critical period for the prevention of disease -proof insects. Comprehensive analysis of related factors such as field diseases, meteorological conditions, varieties of resistance, etc.The pests and insects are generally moderate to the development trend.To do a good job of preventing and controlling pests and pests in rice ears is a key measure to ensure the safety of agricultural production and seize the harvest of autumn grain. All localities must effectively strengthen the monitoring and early warning of diseases and insects, increase prevention and treatment of publicity and guidance, and make every effortStrive to control the loss to the minimum.

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