Dendrobium aphyllum Pest and Disease Control Methods and Technical Key Points

1. Snails

These pests mainly hide secretly on the underside of leaves, and basically rely on eating the leaves or biting the stems to damage the petals. The most troublesome thing is that they occur many times within a year, and once they appear, the damage is especially severe. Basically, they can eat an entire plant bare in just one night, so timely control is absolutely necessary.

Control methods: We can find some bait, mix in a little poison, and place it in the places where they frequently appear, and this can successfully eliminate them. Alternatively, we can spray some pesticide on the cultivation soil or the surrounding environment. Quicklime and salt water can also be used for effective control. In addition, it is best to pay attention to the hygiene of the cultivation area during normal times; withered leaves must be cleaned up promptly.

2. Pinnaspis aspidistrae (fern scale)

These insects generally parasitize the edges of the plant's leaves or the underside of the leaves, mainly feeding on the plant's sap to survive, which causes the leaves of the entire plant to begin drying out, and in severe cases can directly kill the plant. At the same time, they may also trigger some other diseases.

Control methods: This pest generally reaches its peak development period in May. At this time, we can mix and spray a little pesticide, which will give a relatively good effect. If the insects have already formed and the quantity is not large, the old branches and leaves can be pruned off and then burned together in a concentrated manner.

3. Black spot disease

When this disease first occurs, many dark brown spots appear on the leaves. As it gradually develops, you will find that yellow gradually appears around the spots on the leaves. In severe cases, the black spots will merge with each other to form patches, and eventually the leaves will drop off.

Control methods: This disease generally occurs just as summer begins, so we need to choose some pesticides to spray for control at this time. This can quickly control its subsequent development and prevent it from worsening.