The China Pesticide Network was informed that Bupleurum pests and diseases occurred in some villages in Fengzhou and Hekou Towns. The Science and Technology Bureau attached great importance to it. At the first time, the technical staff of the Northwest A&F University and the experts of the county plant protection station were invited to inspect the village group and proposed a prevention and treatment plan. And organized a training session.
At the training meeting, the county plant protection expert Zhang Huilong gave lectures on the prevention and control of Bupleurum pests and diseases, and elaborated on the current situation and trend of Bupleurum pests and diseases, prevention and control technology, use and maintenance technology of motorized sprayers, and planting at the meeting. Large families have asked various experts to ask questions on the spot. The training session has a warm atmosphere and good results. At the meeting, the Science and Technology Bureau also issued more than 100 copies of the newly printed "Bupleurum Pest and Disease Prevention" program.
Bupleurum pest control:
1. Red bar scorpion: It belongs to the genus Hemiptera, and it is harmful from June to August. Adults and nymphs absorb juice and make plants grow poorly.
Control method: artificially kill or kill with 800% of the insecticide, 100% insecticide .
2, root rot: mainly harm the roots of Bupleurum, rot and wither and die.
Control methods: clean the field, burn the diseased plants, plant sorghum, pay attention to drainage. Disinfect the soil, remove the diseased plants, and disinfect with lime acupoints.
3, spot blight: rainy season, with 1:1:100 Bordeaux liquid spray control.
4, Huang Fengdie: belongs to the Lepidoptera family, the hazard occurred in June to September. The larva harms the leaves. Flower buds, eat into nicks or only pedicels.
Control method: artificially kill or use 90% trichlorfon 800 times liquid, spray once every 5 to 7 days, for 2 to 3 times. It is also good to spray with 300 times of the larvae (10 billion per gram of spores).
5, rust: caused by fungi, endangering the leaves, the diseased leaves are slightly uplifted, and later broken orange-colored spores.
Control method: After harvesting, the Qingyuan burned down. The pesticide manufacturer suggested that 50% dinitrogen disperse 200 times liquid or 400 times liquid of enemy rust steel should be sprayed at the beginning of the disease, and once every 10 days, for 2 to 3 times.
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