What are the pest and disease control methods for the lucky bamboo (Reineckea carnea)?

I. Diseases

This plant does not have many types of diseases; there is mainly only one, called "anthracnose," so next we will introduce this one in detail.

This disease mainly harms the leaf portion of the plant. When it occurs, many grayish-brown round spots appear on the leaves. If it continues to develop, some small black granular spots may appear on these diseased spots. This pathogen overwinters in the soil or on diseased leaves, spreads by air currents or water splash, and after onset of the disease it reinfects through spores. In the south there are two to three peak periods of onset each year, while in the north there is only one. The severity of the disease depends on the amount of rainfall; if there is continuous rain, it may increase the likelihood of this disease appearing.

To control this disease, first deal with the diseased leaves that have already been affected, cut them off and dispose of them in a concentrated way to reduce the source of infection. In addition, use some chemicals, such as 25 percent Tante Ling powder at 500 times dilution, and so on, applying once about every ten days, and about three or four times is roughly enough. Also, later-stage management is relatively important, for example, light should not be too strong, otherwise it may also promote infection, because this plant is a shade-tolerant type.

II. Pests

There are relatively many pests that threaten this plant, such as white grubs and so on. They mainly exist underground and reproduce relatively quickly, so the harm is also relatively great. They all bite the root system of this plant that exists underground, and after reaching a certain degree the plant will lodging and die. To deal with these pests, we can spray Lorsban at 1,000 times dilution, or use the leachate of plant ash, which is also acceptable.