“Wheat roots and grasshoppers†is a newly discovered pest that damages the base of wheat stems. It was more than 6,000 mu last year. On average, there are 5-20 larvae per bit of wheat in serious plots. Although emergency prevention and control, the area of ​​damage is still expanding this year. . After the wheat is damaged, it can cause the stem to break, the wheat seedlings will die and die, forming a lack of seedlings and ridges, and the symptoms are easily confused with common pests such as tigers. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
Hazard Symptoms: Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
The base or leaf of the damaged wheat stem is in the shape of a hole. The wheat seedlings are taken out and carefully observed. There are fresh hole-like wounds at the base of the wheat stem, which can only be damaged by the surface sheath, or voids, and even the entire stem is nicked. Generally, it can be found around the hole. See larvae. In the upper blade wound, a plurality of rows are formed into holes, and the surrounding tissue of the hole has been yellowed and dead, and the field is lacking in seedlings. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
Because it is a new disease, lack of basic research on the occurrence of rules, epidemics and clear and effective prevention and control techniques, even the name of "wheat roots and grasshoppers" is a tentative name in our province, and farmers and technicians are lacking. Prevention and treatment experience. Faced with this situation, all localities should refer to the prevention and control technology of pests and diseases, use various forms of propaganda and guidance, scientifically organize prevention and control, ensure the control effect, and ensure the safety of summer grain production. According to preliminary tests, 48% chlorpyrifos EC or 4.5% high-efficiency cyfluthrin cream sprayed on the base of wheat stems to control wheat roots and grasshoppers. Linyi Fertilizer Network Copyright
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