It is important to prevent and control insect pests in advance.

In the cultivation of evergreen this indoor plant, if not good at taking care of, evergreen will suffer from diseases and insect pests, its leaves are no longer green, the whole evergreen will wither. Therefore, it is necessary to know the methods of pest control of evergreen when raising evergreen.

(1) Leaf spot

The disease occurs on the leaves of evergreen, and it is easy to occur in high humidity weather. The plaque is brown at first, the periphery is water-immersed and faded green, and expands in the shape of a wheel, round to oval, and the edge is brown and gray-white. In the later stage, black-brown mildew spots appeared in the center of the lesion, and turned into a black-brown mildew layer under wet conditions.

Prevention and control methods:

1. Timely removal of diseased and residual leaves

2. 0.5% Bordeaux solution or 50% carbendazim 1000 times solution can be used in the early or late stage of the disease.

(2) anthrax

The disease also occurs on the leaves of evergreen and can spread to the petiole in severe cases. In the initial stage, the plaque showed a flooded small macula, and after expansion, it was oval to irregular brown or yellowish brown, slightly rimmed, and in the later stage, the plaque became dry and produced small black spots arranged in wheel patterns. The main reason for this disease is poor ventilation, and it is beneficial to the occurrence of the disease when it is harmed by shell insects.

Prevention and control methods:

1. Strengthen maintenance and increase the application of phosphorus and potash fertilizer

2. At the initial stage of the disease, 0.3% 0.5% Bordeaux solution (or 60% Dysen zinc 800 times 900 times, or 70% topiramate 1500 times) can be sprayed.

(3) Brown soft scale

When soft scale harms plants, it is generally clustered on the leaf surface or tender leaves, sucking plant juice and excreting mucus at the same time. Its excretion can easily cause a large number of coal fouling bacteria to multiply, blacken stems and leaves, affect plant photosynthesis, and cause weak growth potential. Leaves withered and yellow, hindering ornamental. When the occurrence is serious, the branches and stems are covered with insect bodies, resulting in the withering and yellowing of the plant and affecting the growth.

Control methods: if there are few damaged plants, or the number of insects is not much, generally use bamboo and other things to scrape off the insect body.

There are still many pest control methods for evergreen, and different pest control diseases will be different. when breeding evergreen, it is necessary to know the main insect pests that may appear, and then targeted prevention and control to ensure that evergreen is well fed.