The wintering period usually refers to a period from the stop of spinach growth to the spring before the spring. This period is an important period for the growth of spinach. Pay attention to the following three points when carrying out management. The specific Chinese pesticide network is described as follows:
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In order to prevent cold and dry damage, you can pour a frozen water before freezing. If the fertilizer is insufficient, you can mix the urine. After freezing, it can cover horse manure or circle fertilizer to protect the seedlings from wintering. And spraying the generals of the tree to form a layer of fluorescent protective film, with suffocating sterilization, preventing virus replication and infection, preventing and treating various cortical diseases such as rot and ulcer, as well as anti-frost and anti-freeze effects.
After the spinach began to grow vigorously, the demand for fertilizer and water increased sharply. In this period, we must keep the soil moist and not dry. We should pay close attention to topdressing and watering, promote vegetative growth, and delay the convulsion period. Spraying vegetables and stalks at the right time can make the stems of the plants thick, the leaves are thick, the leaves are fresh, the plants are flourishing, and the natural taste is strong. At the same time, it can improve the ability to resist disasters, reduce the amount of pesticides and fertilizers, and reduce residual poisons.
The wintering spinach pests and diseases mainly include downy mildew, anthrax, viral diseases and aphids. When downy mildew and anthrax occur, the pesticide manufacturer recommends using 75% chlorothalonil 600 times solution, 25% metalaxyl 700-800 times solution or 40% ethyl phosphorus aluminum wettable powder 200-300 times solution in the early stage of the disease. The new high-fat film is sprayed. In addition to the rotation of virus diseases, it is also necessary to promptly control the transmission of locusts and other vectors. Aphids can be controlled with pesticides such as imidacloprid.
Spinach management of pests and diseases during wintering period is not tolerant