Pest control of Bupleurum chinense

Bupleurum is a perennial herb, originally wild. In recent years, due to the shortage of medicine sources caused by mining, we should pay attention to the pest control of Bupleurum. Let's take a look at it.

Rust disease

[damage characteristics] Rust is caused by fungi, which harms the leaves. The back of the diseased leaves is slightly raised, and orange spores break in the later stage.

[prevention and control methods] the garden was burned after harvest, 50% dinitrate powder 200 times liquid or 400 times rust steel solution was sprayed at the initial stage of the disease, once in 10 days, 2 times 3 times in a row.

Root rot disease

[hazard characteristics] Root rot mainly harms the roots of Bupleurum, rotting and withering and dying.

[control methods] Clean the field, burn diseased plants, plant in high beds, pay attention to drainage, soil disinfection, pull out diseased plants, and disinfect with lime acupoints.

Spot blight

[harm characteristics] the infection occurred in the rainy season, mostly from the leaf edge and leaf tip, the disease spot was irregular from small to large, reddish brown to grayish brown, the disease spot was continuous into a large withered spot, and the withered area reached 1 inch 3-1 inch 2 of the leaf. There was a deeper zone on the edge of the disease spot, and the disease boundary was obvious, and some small black spots were produced on the disease spot in the later stage.

[prevention and treatment method] spray control with 1-Vera-1-100 Bordeaux liquid.

Yellow Phoenix butterfly

[hazard characteristics] Yellow Phoenix butterflies belong to the family Lepidoptera, which occurs from June to September. The larvae harm leaves and buds, and eat into missing or only pedicels.

[control methods] manually kill or spray 90% trichlorfon 800 times every 5-7 days for 2 times in a row, and spray with green fungus (10 billion spores per gram) is also very effective.

Red striped clavicle

[hazard characteristics] the red-striped clam belongs to the family Hemiptera. The damage occurred from June to August, and the adults and nymphs absorbed the juice, resulting in poor plant growth.

[control methods] manually kill or spray with 90% trichlorfon 800 times solution.