Common diseases and pests of Milan, what insects grow in Milan

1. Diseases

1. Stem rot: Stem rot is one of the common diseases of Milan. This disease mainly harms the stems of the plant. When infected, black spots will appear, which will then slowly expand, eventually leading to stem rot and plant death. If you find that the plant is diseased, you can apply Bordeaux liquid to the branches and trunks for treatment.

2. Anthracnose: Anthracnose is very harmful to Milan, and its leaves, petioles, twigs and stems can be infected. At the beginning of the disease, the leaf tips turn brown, and then the disease spreads to the entire leaf, causing it to fall off and the branches to dry up. After the disease occurs, it is necessary to prune in time, cut off all diseased branches and leaves, and destroy them together. Afterwards, maintain good ventilation and spray with Tocunjin solution for prevention and control. Usually, you should also water and fertilize appropriately to increase its disease resistance.

3. Sooty mold: Sooty mold usually occurs together with scale insects and needs to be scrubbed with clean water or sprayed with carbendazim for treatment.

2. Pests

1. Scale insects: One of the common pests, this pest has a waxy shell on its surface, so it is not easy to kill it by spraying, and usually needs to be brushed off with a brush. In addition, in order to kill its larvae, you can apply a little furadan to the soil.

2. Aphids: They are also common pests. They mainly suck the sap of plants, causing them to grow poorly. There are many ways to eliminate this pest. In addition to various pesticides, you can also make your own ash water or lime water to kill it at home.

3. Red spider mites: This pest is small in size and not easy to find. It lays a lot of eggs, and once it is infested, it will form a large group. Generally, it can be killed with drugs such as mitraz, and the front and back of the leaves should be checked regularly to see if there are any signs of recurrence.

4. Leaf roller: Its larvae will eat the leaves of the plant, usually occurring in spring and summer. Its adults are phototactic and can be killed with a black light. The larvae should be eliminated with drugs such as phoxim.