Planting Technique of Dendrobium officinale

Planting Dendrobium candidum requires a clear understanding of the four links of transplanting time, cultivation conditions, field management and pest control. The transplanting time is spring and autumn every year, and spring is more suitable. The cultivation condition of the greenhouse is the basis of its planting, and the film is covered reasonably according to the regional temperature. During the growth period, do a good job of overwintering heat preservation and moisture and humidity management, common diseases and insect pests include soft rot, black spot and so on.

Control methods of common diseases and insect pests of Dendrobium candidum

1. Soft rot

It is easy to occur in the environment of high temperature and high humidity, and the disease occurs quickly, and when it is serious, the whole plant decays and disintegrates in the form of wet rot.

Prevention and treatment: at the initial stage of the disease, the control effect of 2000 mg/ kg was the best with 77% Kesha 101 wettable powder, and the control effect reached more than 78% 12 days after spraying. You can also use 80% methyl topiramate wettable powder 800 times liquid spray.

2. Black spot

Damage to the leaves, so that the leaves withered, usually occurred in March-May.

Prevention and treatment: 50% carbendazim 1000 times solution can be sprayed 2-3 times.

3. Anthrax

Damage to leaves and fleshy stems, damaged leaves appeared brown or black disease spots, generally occurred from January to May.

Prevention and treatment: 50% carbendazim 1000 times solution or 50% methyl topiramate 1000 times solution can be sprayed 2-3 times.

4. Snails

Common pests damage young stems, young leaves, buds and young fruits.

Prevention and control methods: it can be controlled by artificial trapping, poison bait or sprinkling lime and tea bran.

5. Dendrolimus angustifolia

Parasitic on the edge of plant leaves or on the back of the plant to suck sap, late May is the peak period of hatching.

Control methods: 1000 times of 40% dimethoate EC or 1000 times of 50% malathion can be used to spray and kill insects, or burn the old branches concentrated with Phyllostachys sinensis.

6. Red spider

Control methods: it can be controlled by removing weeds in the surrounding environment or spraying 8-1000 times low-toxic acaricides, such as 40% dicofol.