What to do if there are black spots on the leaves of green radish in winter

1. Cut off the leaves

Black spots on the leaves of the green radish usually indicate that it is diseased. In this case, the first thing to do is to cut off the diseased leaves. It should be noted that there are slight toxins on the leaves of the green radish, so do not pick them with your bare hands. It is recommended to wear gloves or cut them with scissors.

2. Spraying pesticides

Most of the diseases that occur in green radish in winter are anthracnose. Therefore, it is necessary to spray pesticides for prevention and control to avoid black spots appearing on other leaves. Generally, 20% of the hydrochloric acid solution of imazalil is mixed with 800 times water and sprayed on the leaves with a spray bottle.

3. Improve ventilation

The reason why green radish gets sick in winter is mostly due to poor ventilation. However, since the winter is relatively cold and the plant has poor cold resistance, opening windows for a long time will also harm it. Generally, choose a sunny noon, place the plant in a sunny place, and open the windows for ventilation.

4. Reduce watering

Residual moisture may lead to the growth of bacteria, which in turn may cause various diseases. Therefore, the soil should be kept slightly dry and should not be watered too much at a single time. You can wait until the soil is completely dry before watering again. In addition, the water temperature must be strictly controlled. If the tap water temperature is low, it needs to be left for a while to avoid frostbite on the roots.