In our lives, there are many snacks that are eaten with sesame seeds. The taste is very delicious. In addition, sesame seeds can be fried and eaten. How to prevent weeds in the process of planting sesame seeds? How to prevent common pests and diseases? Let's talk to you in the following small series!
First, how to prevent sesame seeds from weeds?
1. Pre-emergence formula
Because the sesame seeds are relatively small, we must pay attention to the depth of sowing and the seeding after sowing. If the seed is not good, it will affect the sprouting rate. Keep in mind that for the years of use, the following recommended closures are relatively safer.
(1) 33% pendimethalin (general application of field supplement) 100-150ml/mu per acre, evenly sprayed with 40kg/mu of water, can effectively control a variety of annual grass weeds and cockroaches, crickets, ramie Broad-leaved weeds also have a certain control effect on purslane and shovel. After closing, pay attention to the fact that there is no water in the field.
(2) 2% metolachlor (Ginduer) 120 ~ 150ml / mu water 40kg / ag evenly sprayed, can effectively control a variety of annual grass weeds and some annual broadleaf weeds. Be careful not to overuse, do not have clear water stains after use.
2, stem and leaf weeding:
It is not difficult to control weeds in sesame fields, but for the broadleaf weeds in sesame fields, there is currently no formal registration and sesame field medicinal preparations. However, as far as the use of chlorpyrifos in the field has been used for so many years, we only need the main seedlings. Age, temperature, dosage, pay attention to the spray between the lines when spraying, do not spray the head, the overall effect on sesame is not great, the effect is good. It is recommended to use a small area before trial.
(1) 10.8% high-efficiency flupirtine 30-40ml+ (Weiba) 6.9% benzoxazole grass 60-80ml + 48% bentazon 120-150ml (do not re-spray, reduce spray between nozzles)
(2) 10% Jing Kui He Ling 60-80ml + (high cover) 10.8% high-efficiency flupirtine 40-50ml + 48% bentazon 120-150ml weed 2-3 leaf period to control the best best .
Second, the common pest control of sesame
1. Fusarium wilt and disease
Blight and disease of sesame seedlings occur, 50 kg of leaf cumin WP 0.5 kg per acre, mix 20 kg of moist fine soil, strip the bottom of the ditch (soil disinfection) and then sow. It can also be used when the sesame seedling disease is first seen, using 25% copper ammonia bactericide, ursin, 25 grams of water, 40 kilograms of water, or 800 to 1000 times of copper sulfate or 80% of DuPont New Wansheng 800 times. Spray 2 to 3 times every 7 days.
2, bacterial wilt
Sesame bacterial wilt is likely to occur throughout the growth period. 50g of 20% leaf green WP can be used per acre, or 50% of carbendazim WP can be sprayed with 50 grams of water. If the onset of spotting is obvious, the effect of filling the drug solution is better.
3, stem blight
Sesame stem blight is more serious in the late growth stage. 50 g of carbendazim WP can be used per acre, or 70 g of thiophanate-methyl WP can be sprayed with 50 g of water.
4, moth
Sesame moths occur from the early flowering stage to the harvest, but they are more harmful during the pod stage. You can master the larvae in the prosperous period, use 90% of the 100% trichlorfon 800 to 1000 times of liquid, and spray about 50 kg per mu.
5, hawk moth
Sesame hawk moths occur in the middle and late stages, and can catch larvae during the prosperous period. The use of 90% trichlorfon 800-1000 times liquid, or 80% dichlorvos emulsion 1500 times liquid, 50 kg per acre spray liquid.
In the countryside, many friends will grow sesame seeds themselves, but they often encounter many weeds and suffer from pests and diseases. So today, Xiaobian is going to share some relevant knowledge about these phenomena and hope to help everyone!
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