Disease
The first is called "leaf rust". This disease is common and we know it better. We can also know from the name that it mainly endangers the leaves of plants. It is easy to get sick when nitrogen fertilizer is applied too much or when plants are very dense. When it comes to disease, it will first make the leaves covered with small brown spots, and then connect them into a piece, and then fall off. If you let it go, the whole branch will dry up. The specific prevention and control method is: first, clean up the damaged branches and leaves, preferably burn them, so as not to threaten other parts. Then, spraying is a more effective method p>
The second disease is powdery mildew of flower stick. This disease will bend the tender leaves of plants and turn the branches yellow. If the treatment is not carried out in time, the broken strip will occur. The disease is prone to occur in conditions with too much fertilizer, poor ventilation and too humid environment. To deal with this disease, we must first clean up the fallen leaves, cut off the sick branches and deal with them in a centralized way. Then, we need to use pomelite sulfur mixture p>
Pest
One of the main pests that can threaten plants is the spring inchworm. The larvae will eat the flower buds, and the adults are mainly interested in leaves. This kind of pest has a rapid reproduction speed and development, and its food intake is also very large, so the corresponding harm is relatively large. In serious cases, it can even lead to the death of the whole plant. To deal with this kind of insect, we should first dig deep into the soil and kill the pupae that spend winter or summer underground. Of course, we can also choose to kill moth EC to kill them p>