Occurrence and harm Maize rough dwarf disease is a virus disease caused by the transmission of poisonous insects such as SBPH, thrips, flea beetles and aphids. In recent years, it has become aggravated and tends to cause a 20%-30% reduction in production. Up to 60% or even no income. The dwarfing virus winters in winter wheat and other weedy hosts, and it can also overwinter in insecticidal insects. After the corn was unearthed in the second year, the virus was transmitted to corn seedlings or sorghum, millet, and weeds through transmission of poisonous insects, and the disease was spread and transmitted. The corn is susceptible to disease before the 5th leaf stage, and the resistance increases after the 10th leaf stage, and it is light even if it is affected. When corn emerges to the 5th leaf stage, if it meets with the peak of migrating insects, the incidence is serious, so the sowing date of maize is closely related to the severity of disease. Such as the seedling stage is met with the first generation of adult slug slough, the incidence of serious; extensive field management, weeds, more than fly ash, heavy disease. Diagnosis of symptoms Corn can be infected during the entire growth period, and suffer the most in the seedling stage. Symptoms can be seen in 5-6 leaves of corn, and the leaves are not easily extracted and become smaller, which can be used as a basis for early diagnosis. Beginning at the base of the heart leaf and at both sides of the midrib, a transparent oil-immersed green dotted line is created, gradually spreading over the entire leaf. The leaves of the diseased plant were short and stiff, with dark green leaves and thick internodes. The top leaves were clustered like a clivia. Leaf veins, leaf sheaths, and temporal lobes have waxy white sticks on the veins of the leaves, showing a noticeable roughness. In the 9-10 leaf stage, the dwarfing phenomenon of the diseased plants was even more pronounced. The upper internodes were shortened and swollen, and the top leaves were clustered. The diseased plants were less than half the height of the healthy plants, and most of them were not heading and fruiting. Although some tassels could be extracted, Very few branches, no pollen, abnormal ear shape, few filaments, severe dwarfing of the plant, degeneration of the tassel, abnormal ear, and serious failure to seed. Out of my mistakes After the emergence of corn, especially summer sowing maize, at the time of disease emergence, it is time for the harvesting of wheat to be completed. At this time, a large number of insect-infecting insects will use corn that has just emerged as a concentrated feeding target. Therefore, the emergence of corn or the two-leaf one-hearted period should be The seedlings were sprayed in a timely manner and sprayed for a second time or even a third time at intervals of about 10 days. Many people do not have enough knowledge of this law, and the timing of drug use is too late. They even started to use drugs when they found that they had symptoms of contraction, delaying the optimal timing of prevention and treatment. Spraying time The insects such as Laodelphax striatellus, Puma, and A. sinensis are fond of flying. They hide in the earth's seams during the day, and come out to eat and feed in the evening. In the arrangement of spraying time, generally should be in the afternoon 4 o'clock or evening. Some people ignore the living habits and activities of these pests, and take it for granted that they choose to spray medicines during the afternoon break after work or when they work. They cannot effectively kill pests and affect the efficacy of the drug. Drug selection should generally be selected from compound preparations of pyrethroid pesticides and organophosphorus pesticides, or other complex preparations with special effects, such as: insecticide for 18 seconds, cocoon net, etc. Some people use pure chrysanthemum pesticides. Although they have contact and stomach poisoning effects, they lack the systemic absorption effect, resulting in many of the above-mentioned effects. In order to better ensure the control effect, on the basis of correct selection of pesticides, appropriate addition of some plant vaccines that have the function of prevention and recovery of corn rough dwarf disease, corn coarse shrinkage net, etc., have good results. Although corn is sweet, it is important to note that it is a medium glycemic index food, which means that the sugar content is not very high, so why does it taste sweet? This is a question for many people. In fact, corn tastes sweet because it contains soluble new sugar substances, but in general, its carbohydrate content is actually not high, so it is still suitable for people with high blood sugar to use as a staple food to help control blood sugar. Black Waxy Corn,Black Glutinous Corn,Glutinous Corn Kernels,Black Glutinous Corn Kernels Jilin Province Argricultural Sister-in-law Food Co., Ltd. , https://www.nongsaocorn.com
Corn can control blood sugar, but you have to be careful how you eat it
But the doctor is to remind everyone that although corn can help control blood sugar, but it is recommended that we corn food life or need to eat the right only important, if a single consumption of corn, as a medium glycemic level of food, corn will still lead us to elevated blood sugar please, in addition will lead to indigestion, body flatulence, etc., resulting in our body's nutrient supply is insufficient, so life we for eating duo to pay attention to.
Corn roughage disease prevention three errors
The corn rough dwarf disease, which occurs every year from year to year, has no shortage of drugs, and no effort is made. However, it still has not achieved good results. What is the reason? A large number of investigations have found that the main reasons for this phenomenon are misunderstandings in the timing, timing, and drug selection of drugs.