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<h1 class="pgc-h-arrow-right" > what is the reason for soybean harvesting with pods without grains commonly known as "green disease"? </h1>
Flowering and knotting normal, to the harvest season the plant is still green leaves, there are no seeds, yield reduction of 10%-40%, serious plot particles no harvest is a prominent problem in soybean production, has become a major problem in the Huanghuaihai summer sown soybean production area, known as soybean immortal "cancer" in recent years has been identified as the cause is the point bee edge bug hazard results.
<h1 class="pgc-h-arrow-right" > this bug is the bean "point bee bug"</h1>
1. Spot bee edge bug: belongs to the hemiptera marginal bug family, its three insect states are eggs, nymphs and adults, nymphs and adults harm soybeans causing pods and no grains.
2. Hazard symptoms: after sucking the soybean with flowering and pods, the young embryos of soybean grains die, resulting in normal flowering, normal pods, fruit pods are not solid or deflated, and when the whole plant has no grains and no grains in the whole plant, the particles have no harvest.
3, did not attract attention: most kinds of soybean friends, especially friends who have not been harmed by it for many years, do not understand the harm of the point bee edge bug, neglect the prevention and control of it, or miss the best control time with medication, and the result is a heavy loss.
4. Hazard habits: the eggs are scattered on the leaf back, young shoots, and young stems, and the nymphs are first clustered after hatching, and then dispersed the hazards, and feathered into adult worms in July and August, and continue to breed hazards.
5, the best period of control: soybean flowering - pod period, this time should pay attention to drug control, the first time after flowering should be controlled by drugs, because this period is the adult, nymph harm peak period, it is recommended from the initial flowering period - pod stage for prevention and control, can be combined with other diseases and insect pests, spray foliar fertilizer or control alone, to achieve a spray comprehensive prevention.
<h1 class= "pgc-h-arrow-right" > combination of medicine, fertilizer and bacteria to achieve a spray comprehensive prevention</h1>
6, pharmaceutical control technology: can choose high-efficiency cypermethrin + thiamethoxine, methyl vitamin salt or avermectin + high-efficiency cypermethrin, polyester + chlorpyrifos, once every 10 days; can also be used 5% high-efficiency cyfluthrin or cypermethrin alone control, in order to improve the control effect can add auxiliary green bark essential oil. Spray once every other week, control 3 times continuously, and appropriately increase the number of prevention and control according to the actual situation in the field.
(1) Spraying can be combined with the control of other diseases and insect pests and the application of foliar fertilizers that resist disease and insect yield to achieve comprehensive control to improve soybean yield and quality.
(2), spraying time choose to spray the agent at 5-7 pm on a sunny day, and the morning and evening activities of the spot bee edge bugs are slow, and the prevention and control effect is good. When preventing and controlling, it is necessary to first hit the periphery, and then turn the circle to fight inside, which is conducive to centralized elimination, and areas with conditions can be taken, unified prevention and rule, and the effect of insect prevention is better.
(3) When spraying, you should also pay attention to spraying the crops or weeds around the soybean at the same time, so that the peak edge bugs have a hiding place.
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