Occurrence and Control of Wheat Stripe Rust

Wheat rust is classified into stripe rust, leaf rust, and stem rust. Wheat stripe rust is the main cause in our province, which has a great impact on wheat yield. Wheat stripe rust is not resistant to high temperatures and cannot therefore be over the summer in most parts of the province. When the wheat was harvested, the stripe rust fungus was blown to summer over the plateau in the cool regions of the summer. After the autumn wheat was sowed, the germs of the over-summer spread to the province with the airflow and dip into the early sowing seedlings to become the initial source of the dip. In early December, when the average temperature dropped to 2°C in the ten days of the year, the stripe rust pathogens overwintered on local wheat seedlings, and from late February to early March, the wintering germs began to grow.

The basic measure for preventing and controlling wheat stripe rust is to plant resistant varieties according to local conditions. Immediately after the harvest, the wheat is ploughed and stubbed off to eliminate the self-producing wheat seedlings and reduce the source of the bacteria in the summer. It can reduce the incidence of wheat. Usually, the incidence of wheat fields sown after seed dressing is lighter. After dressing with Rickettox or triadimefon, the disease rarely occurs in wheat. For the current wheat field where the disease occurs, it can be controlled by field spraying. For the early onset of the disease center must be focused on prevention and control to control its spread. When the disease rate in Daejeon reaches 0.5%, prevention and treatment can be immediately carried out. 12.5% ​​of husk WP can be used per mu, 30 to 35 g, or 20% of Triadimefon 45 to 60 ml, or other triadimefon and diniconazole can be used. Pesticides were sprayed at the required dose and the leaks were promptly identified. Serious disease fields need to be controlled twice.

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