Control of diseases and insect pests of Gastrodia elata
First, the disease is mainly caused by miscellaneous bacteria such as green mold, Penicillium and Mucor, which can not only inhibit the growth of Armillaria mellea, but also cause rot by infecting Gastrodia elata tubers. Control methods: ① selected land with good drainage for planting; ② selected high-quality bacterial material; ③ cultivation process to control temperature and humidity; ④ bacterial material gap with humus soil or rice filling.
Second, the main insect pests are grubs, mole crickets, golden leaf insects, termites, rats and livestock and poultry. Prevention and control methods: ① light trap; ② with 1000 times of 90% trichlorfon or 1000 times of phoxim; ③ with 25 grams of 90% trichlorfon plus an appropriate amount of water to dissolve and stir-fry 5 kg of wheat bran, add an appropriate amount of water to form poison bait, and place the border surface to kill in the evening; ④ rats can be caught and killed with clamps or poison bait; ⑤ strengthens livestock and poultry management.
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Control techniques of diseases and insect pests of Gastrodia elata
In recent years, we have tried to plant Gastrodia elata in our college for several times, and we have got a lot of harvest, but it is not harmful to diseases and insect pests, which has seriously affected the yield and quality of Gastrodia elata. There are mainly two kinds of diseases that have a great impact on the yield of Gastrodia elata: one is called pathogenic disease caused by harmful microorganisms, and the other is physiological tuber rot. 1. ⑴ symptoms of tuber soft rot: tubers with soft rot, yellowing skin and central tissue rot.
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Spodoptera litura
DiometacremetaButler belongs to the family Lepidoptera. It belongs to one of the bridge-building insects, which is one of the most important pests to damage edible fungi such as Ganoderma lucidum, Pleurotus ostreatus, Auricularia auricula and so on. The main damage characteristics are to eat Ganoderma lucidum cap and meat, leaving a curved tunnel at the victim site. And there are notched holes in the fruiting body. Reduce the commodity value of Ganoderma lucidum. The morphological characteristics of the adult are 11 mm in length and 25-26 mm in wingspan. The male worm has a dark purple-brown body, head and chest.
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