What are the main pests and diseases of Artemisia selengensis? Artemisia selengensis is originally a kind of wild vegetables. With the pursuit of green vegetables in recent years, many farmers have planted wild vegetables of Artemisia selengensis in large areas. Let's learn about the main diseases and insect pests of Artemisia selengensis and comprehensive prevention and control measures.
1 The main pests and diseases of Artemisia selengensis
In the past few years, we have adhered to systematic investigations and large-scale censuses. There are 17 common diseases and insect pests of Artemisia selengensis in Caidian District of Wuhan, including 5 fungal diseases (root rot, downy mildew, sclerotinia, gray mold, powdery mildew), viruses. There are 1 species of sexual diseases and 11 species of insects (aphids, red spiders, crickets, small tigers, crickets, Jerusalem artichokes, Spodoptera litura, beet armyworm, corn borer, cotton bollworm, and whitefly). Among them, downy mildew, sclerotinia, aphids, Spodoptera litura, beet armyworm, cockroaches, etc., are lost in the general year due to pests and diseases.
2 Comprehensive prevention and control measures
The control of pests and diseases of Artemisia scoparia adheres to the plant protection policy of “prevention first, comprehensive preventionâ€, and coordinates the use of effective control measures such as agriculture, physics, biology and chemistry to control pests and diseases.
2.1 Agricultural measures
Use anti-(resistant) varieties. Variety is suitable for local cultivation of resistant (resistant) pests and high-yield varieties. The seedlings are selected to have strong growth potential, and the stems and leaves are planted in the field, and the seedlings, seedlings and weak seedlings are removed before cutting.
Strengthen the management of field science. Under the premise of preventing low temperature freezing damage or high temperature burning seedlings, timely and moderately uncovering the film ventilation and light transmission, scientifically controlling the temperature and humidity inside the shed, can effectively control the spread of diseases. Strengthen field management, scientific irrigation, timely clearing ditch drainage in rainy days, reduce field humidity, rational topdressing, timely harvest. Farming operations should be carried out after the dew is dried to avoid human transmission.
2.2 Physical measures
Use yellow traps to trap beech and winged cockroaches; insecticidal lamp light traps corn mites, cotton bollworms, chafers, cockroaches and other pests; sexual attractants traps Spodoptera litura, beet armyworm, corn borer, cotton bollworm and other insects
2.3 Biological control
Protect and utilize natural natural enemy spiders, grasshoppers, ladybugs, parasitic wasps, etc.; use plant-derived pesticides natural pyrethrin, azadirachtin, matrine, etc. to control aphids and whitefly; use biocides nuclear polyhedra ( NPV) virus, Bacillus thuringiensis, avermectin, etc. control Spodoptera litura, beet armyworm, cotton bollworm, corn borer, etc.
2.4 Chemical control
Root rot: The roots and stems were sprayed with 43% tebuconazole 3,000 times or 70% methyl thiophanate 1000 times.
Downy mildew: use 72.2% Plex 600 times solution or 58% Redolmer 1500 times solution spray control.
Sclerotinia sclerotiorum, gray mold: use 50% Nongling 1000 times or 50% pupin 1500 times spray control.
Powdery mildew: use 25% amishida 1500 times solution or 15% triadimefon 1500 times solution spray control.
Underground pests: ploughing with 3% m ole or 3% phoxim granules 2 to 2.5 kg per 667 m2.
Aphids: 25% pymetrozine 2 000 times or 25% thiamethoxam 5000 times solution, or 70% imidacloprid 6 000 times solution spray control.
Red spider: It is sprayed with 5% thioxanthone EC 2 000 times or 5% flubendialdehyde EC 2 000 times.
Spodoptera litura, beet armyworm, corn borer, cotton bollworm: 5% chlorantraniliprole 1 000, 15% indoxacarb 3,000 times, 5% guanidine urea 1 000 times, 20% chlorfenapyr 1 1000 times liquid alternate spray control.
Jerusalem artichoke, beech powder: use 4% Avizide è„’ 1500 times solution or 25% Aketai 5,000 times solution or 2.5% bifenthrin 1500 times solution spray control.
3 Summary and discussion
Through the experiments in recent years, we have mastered the main pests and diseases and the epidemic situation of Artemisia selengensis in this area, and explored a set of integrated pest control technologies including agricultural, physical, biological and chemical measures. Social and ecological benefits are significant. However, due to the multi-layered covering facilities cultivated in winter, the small environment of the greenhouse is complex and variable, and the occurrence of pests and diseases is unpredictable and unpredictable. At the same time, the physiological diseases caused by improper management are also prominent problems in the current production of Artemisia selengensis, which needs to be further explored.
Regarding the prevention and control of common pests and diseases of Artemisia selengensis, we have said this today. The growers who need it can pay more attention to the study of Hui Nong.
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