Identification and control of diseases and insect pests in orchids

Orchid physiological disease symptoms, often manifested as plant discoloration, such as: leaf yellowing off, leaf tip or leaf edge scorched, rotten roots and so on.

Orchid parasitic diseases, bacterial diseases, viral diseases, parasitic pests. Their common symptoms are:

1. Fungal diseases: Common symptoms are leaf discoloration, decay, tissue necrosis (spots, ulcers, standing, rot). atrophy, deformity, gall, etc.

2. Bacterial disease: symptoms are water spots, rot spots, peculiar smell, scorch, wilting, acute local necrosis. 3. Virus disease: symptoms are mainly irregular yellow spots on leaves, also known as mosaic disease. Mesophyll tissue necrosis caused by local depression. The victim plants are malformed and short.

4. Parasitic pests: scale insects, mites, nematodes, etc., scale insects make orchid leaves produce yellow spots, these parasites can be seen with the naked eye, usually should be observed and inspected, not to cause disaster control.

In addition to parasitic diseases, there are traumatic pests. Traumatic pests are characterized by plant damage. If ants mutilate roots, mice and cats have orchids, urine in the basin is a great harm to orchids. Snails, mole crickets and so on will make orchid leaves cause scars.

Orchids are basically free of pests and diseases in their native land. After artificial cultivation, there are many diseases and damages, the root cause is ecological environment discomfort, improper cultivation measures and poor management methods.

The most fundamental way to control orchid diseases and insect pests is to improve the management level of cultivation techniques. And adhere to prevention first, comprehensive control, grasp the law of disease, identify the nature of disease, seize the most effective period of prevention and control, the basic principles of the prevention and control of orchid diseases and pests.