Common orchid pests and their prevention and control methods

Common orchid pests: scale insects

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symptom

Scale insects are the most common insect pests of orchids, mainly parasitizing on stems and leaves. It has a strong reproductive capacity and can reproduce several generations in a short period of time. There are also many types of scale insects, including shield scale, striped mealybug, mulberry white shield scale, and bran-flake shield scale.

Prevention and treatment methods

The main reason for the occurrence of scale insects is poor ventilation, so during maintenance, ventilation should be strengthened, sunlight should be supplemented, and appropriate humidity should be ensured.

Dilute white wine, vinegar, or alcohol and wipe the plants repeatedly. This method is convenient and safe. It not only eliminates pests but also makes the leaves return to green.

Common orchid pests: whiteflies

symptom

Whiteflies are small in size and have powdery substances all over their bodies. Orchid species with thinner leaves are easily harmed. When the disease occurs, the orchid leaves turn yellow, brown rot will occur at the wound site, and even the entire plant will die.

Prevention and treatment methods

Spray 2000 times diluted Su Mi Sha Ding in time.

Common orchid pests: spider mites

symptom

It often occurs in places with strong light, dry air and high temperature. It reproduces quickly, and can reproduce 14 to 18 generations a year. It causes serious damage, and the leaves of the affected plants turn yellow or develop necrotic patches. They completely lose their ornamental value, and some even die entirely.

Prevention and treatment methods

Pay attention to ventilation and spraying water to increase humidity; if there are few pots, they can be cleaned manually; if the number is large, use 40% dragonfly killer, 80% DDT or 40% omethoate 1000 times diluted spray, the prevention effect is good.