Peanuts are the main economic crops in Shandong Province and have an annual planting area of ​​12 million mu. As the area of ​​peanuts continues to expand, continuous cropping is widespread, and the occurrence of pests, weeds, and weeds tends to increase, seriously affecting the yield and quality of peanuts. In recent years, with regard to the problem of pests and weeds in peanut production, the Shandong Provincial Plant Protection Station cooperated with Syngenta (China) Investment Co., Ltd. to discuss a set of economically safe and effective peanut pests and weeds solutions. At the same time, the plant protection program also solved the problems of acetochlor, paclobutrazol, etc. that affect the export of peanuts, laying a solid foundation for high-yield peanuts.
Occurrence of major diseases, pests and weeds in peanut production:
Disease stem base rot, root rot, brown spot, black spot, net spot, scab, sheath blight, white peony disease.
Insects Peanut aphid, beet armyworm, cabbage caterpillar, armyworm and cockroach.
Grass damage Ma Tang, goosegrass, Setaria, iron leeks, purslane, leeks and so on.
Peanut high-yield plant protection program:
(1) Peanut root rot, stem rot, and the control of underground pests.
Seeds were treated with 25% Thielamethacin suspension seed coating before sowing at 50 ml/mu. It should be noted that, when dressing seed, first dilute 50 ml of 25% Thiamethoxazolone seed coating agent with 100-150 ml of water, and apply 12-16 kg of seed dressing (the liquid seed ratio is 1:80). Stir with the seeds until the liquid is evenly distributed on the surface of the seed and it can be dried in the shade. The seed dressing is safe to the seed, the method is simple, the dosage is small, and the effect is good. It is to protect the seeds and seedlings from soil-borne pathogens (dead seedlings, rot roots, yellow seedlings, uneven seedlings) and underground pests (grasshoppers, golden needles, small insects) The most effective method of killing tigers and earthworms.
(b) Weed control in peanut fields.
Method Membrane Coverage (Spring Peanuts) Cultivation of Weeds in Peanut Fields
After sowing, use 100 ml of 96% spermolamidine per acre. If weeds already appear in the field, use 150 ml of 20% paraquat in water + 80-100 ml of 96% metolachlor for each mu. Water 45-60 kg, evenly sprayed, and then covered.
For the more severe plots of broad-leaved weeds, 23.5% oxyfluamethacin emulsifiable concentrate 20 ml/mu + 96% pure metolachlor EC 100 ml, and watered 45-60 kg, evenly sprayed.
Method 2 wheat cultivation of peanut field weed control
After the harvest, weeds were treated with 10.8% fluoprafosfolin EC 25-30 ml/mu, with 5% quizalofop-pure EC 50-75 ml/mu, and watered 30 kg, evenly sprayed.
(c) Prevention and control of pests and diseases in the middle and late stages of peanut fields. 1. Locust, beet armyworm, cabbage caterpillar, armyworm.
The initial flowering period of peanuts was 25% Thiamethoxone chlorofluorocarbon microcapsule suspension 10-20 ml/mu, watered 30 kg, evenly sprayed. If the leaf-feeding pests are relatively heavy, use 14% Chlorella chlorofluorocarbon microcapsule suspension-suspending agent 8-16 ml/mu, watering 30 kg, evenly spray.
2. Brown spot, black spot, net blotch, scab, and sheath blight. The initial flowering period, fruit acupuncture period, and fruit-filling period of peanuts were 30% styrene-acrylic emulsion (20 ml/mu), watered 30 kg, and evenly sprayed. Conditions can be used in the initial flowering period with 325 g / l of azoxystrobin suspension 20 ml / mu, watered 30 kg, evenly sprayed.
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