Rice leaf roller, also known as rice leaf roller leafworm, commonly known as penicillium, white leafhopper, and entomophila, is the main pest during rice growth. The pests use larvae to injure rice, concreting leaves into vertical gills, and hiding them from feeding on the epidermis and leaves. The symptom is that the affected leaves leave only the white lower surface of the epidermis. When the population density of rice fields is large, white rice fields can be seen, seriously affecting the normal growth and development of rice and yield, while lighter yields lead to a 2–3 percent reduction in production and 5–6 percent in weight. Therefore, it is necessary to strengthen the prevention and control of drugs in order to effectively reduce the harm. In recent years, a large number of agricultural technicians across the country have screened out a number of safe and effective pesticides for controlling rice leaffolders, which are available for reference throughout the country.
Control agent: Mufu 5% Ruijinte Suspension 40ml or 5% Ruijinte Suspension 25ml + 20% Triazophos Emulsion 60ml or 35% Spike Emulsion 80ml or 35% Coiled wettable powder 80-100 g or 20% Greenford Microemulsion 50 ml or 98% Bataan WP 40 g or 40% Beatle EC 60 ml or 40% chlorpyrifos EC 75-100 ml (used at egg hatch) or 40 % New agricultural insurance 60 ml and so on.
At the same time, we must pay attention to the prevention and control indicators, that is, where there are 20 larvae per tussock rice or 3,000 larvae per 667 square meters (mu) during the delivery period, there are more than 15 larvae before and after the booting stage. It is necessary to spray and prevent it in time.
In addition, the use of pesticides is to spray 50 kg of evenly sprayed rice fields during the peak period of young larvae.
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