Disease and Pest Control of Salvia miltiorrhiza

Diseases

The main disease this plant faces is root rot. The symptom of this condition is generally gradual withering. This is what we can see, but the original source of the disease is invisible to us. That is, the roots underground slowly rot, which leads to the withering of the upper part.

Disease prevention and control measures

The main reason for this situation is too much rain. There are preventive measures. If conditions permit, you can choose a higher location for farming. It would be better if the terrain is slightly drier. We have no way to control the factor of rainfall, so let’s not talk about that for now. However, when continuous rainy days come, we must pay attention to timely drainage. If this has already happened, governance is needed. At this time, you can choose to spray the specific medicine needed when the disease occurs. It is recommended to use a certain dose of carbendazim for treatment.

Pests

aphid

There are three types of pests and diseases that this plant is most likely to encounter. The first type is the "champion" of pests and diseases, aphids. We are not unfamiliar with this. These little insects will not let go of any stems or leaves. The stems and leaves will change color after sucking the juice.

Aphid control methods

Of course, the prevention and control methods for this common insect are relatively old-fashioned. In winter, the land should be cleaned and turned in time, and all the leaves from the previous year should be swept away or buried deep. Once this insect is discovered, spray it immediately with a certain dose of cypermethrin once a week until it is eliminated.

Spodoptera exigua

The name of this pest is quite beautiful. This insect basically appears in summer and autumn. The small larvae begin to eat the leaves, causing the leaves to be damaged and lose their vitality.

Measures for the control of Spodoptera exigua

This must be done in a timely manner, and we must try to discover them in the larval stage and eliminate them. It is recommended to use a certain dose of trichlorfon or phosphamidon emulsifiable concentrate for treatment.