The cultivation of the prickly pear is often caused by the inadvertent watering, the disease caused by the anthracnose disease and the rot of the ball, and it is a pity that the ornamental value of Jinhu and other rot are bad. So how to prevent it?
Generally speaking, if only the star point is rotten, the rotted part can be removed with a little healthy tissue, and the ash can be dried and dried in a cool place (one knife will be used to disinfect the blade once), and the rot will be nested. , the rotten meat should be removed and treated as follows:
Method one, using 70% methyl thiophanate wettable powder and other agents directly spread evenly on the decay site to the non-wet, and at the same time, 95% enzymatic soluble powder 2 g to 3 g, mixed in the basin root 0.5 cm to 1 Centimeter thick in the topsoil, then sprinkle with fine soil or sand cover. If the topsoil in the basin is too dry, pour a little water until the powder is moist. Then put it in a cool and dry place, and return to normal management after the skin is dry and the body is harmless.
Method 2: After the decayed tissue is removed, the lime is burned and burned, and the side is removed and removed two or three times, and then placed in a cool, ventilated and dry place to dry to dry skin.
If it is summer, you can take the hot soil or sand surface on the hot sunny day at the rotten area to see the healthy tissue, remove it after the sprinkle, repeat it two or three times, and finally do not remove it, then put it in a cool, ventilated and dry place until it is dry. Normal management is resumed when the skin is free of disease.
Method 3, if the sphere is rotted or even hollow in many places, as long as the middle marrow is healthy, remove the rotten meat after removing the basin, and then repeatedly disinfect the diseased part with 1% copper sulfate or 0.5% potassium permanganate solution, if necessary, soak in disinfection. Rinse in liquid. Or soak the sphere with 50% compound thiophanate-methyl WP 500 times for 2 hours, put it in a cool, ventilated and dry place until it is dry and no longer rot, then re-plant.
note:
1. Once the sphere is found to rot, except for the severe rot, the pot soil should be disinfected according to the method 1.
2. Maintain an ambient temperature of 15 ° C or higher, and 25 ° C to 30 ° C is most suitable.
3. Newly planted soil should be mixed with fungicide such as 95% dikesone soluble powder for disinfection, and it should not be watered after planting, and it can be placed in indoors with relative humidity above 60%.
4. For the healthy prickly pear in winter, the temperature should not be lower than 10 °C. The summer spraying should be carried out at noon to prevent the water from squeezing and the ball to rot. Spray 70% thiophanate-methyl WP 1000 times per half month. Dixonone soluble powder 500 times solution, but only one or two times in winter root application. Usually keep the basin soil slightly wet.
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