First, Fusarium top rot
Symptoms appear in the seedling stage to the adult stage of the corn, and the heart blade rots and dies from the base of the leaf, tightly enveloping the inner heart and leaves, making it unable to expand and twisting in a whip; or the base of the heart leaf is longitudinally cracked, and the leaves are deformed, shrunken or shrunken. distortion. The plants are often dwarfed, and longitudinal cracking is observed at the base of the stem, with brown lesions. The severely ill plants are often not strong or the ears are small and even wither. Pathogens generally invade young tissues such as wounds, stem sections, and heart leaves. Insect pests, especially those of thrips and aphids, can aggravate diseases.
Second, bacterial top rot
It can happen before corn picking. The typical symptom is that the heart leaves are gray-green, dehydrated, wilting and die, forming dead heart seedlings or clustered seedlings; leaf bases are immersed in water and rot, spots are irregular, brown or tan, decayed parts have or without special odors, and mucus; In severe cases, the entire heart can be pulled out by hand, and the distortion of the heart of the mildly ill plant cannot be developed. High temperature and high humidity are conducive to disease epidemics, and pests or other causes of wounds are conducive to the invasion of pathogens. Mostly, after the rain or after field irrigation, the occurrence of low-lying or poorly-drained land is heavier.
The main symptoms showed that the diseased plants were more or less short, but there were also dwarfing and other symptoms were more diversified:
1 leaf edge nick type. The "knife-cut" notch is found at the base or edge of the diseased leaf. The chlorosis at the leaf edge and apex is yellowish and bright. When severe, half or all leaves of one leaf fall off, leaving only a small amount of leaf tissue remaining on the midrib of the leaf and midrib. .
2 leaves dead type. The leaves are rotted brown at the base of the leaves, and sometimes the leaves are "torched" or "broken leafy." In severe cases, the tip or full leaf of the top 4 to 5 leaves will die.
3 twist wrap type. The top leaves are curled upright to form a "long whip", some of them are wrapped by other leaves when the whip is formed and do not stretch to form an "arcuate", and some of the top few leaves are distorted by twisting and the entangled leaves often show " "Tear-like" and "wrinkled" (Note: This symptom is easily confused with "corn mad disease". The difference is that the disease has obvious yellowing on the edges of the leaves, and the deformed and distorted blades are less pronounced than "coma ").
4 leaf sheath, stem rot type. The rotted diseased plants at the base of the leaf in the panicle of the ear often show rot in the sheaths and medullary parts of the stalks. The cortex on the inside of the leaf sheaths and the stalks immediately adjacent to the leaf sheaths are rusted and rotted. The stems are cut open to reveal the internal vascular bundles. Brown stem spots or short-striped discoloration occurs in stem nodes, and some appear empty, with white or pink moldy endogenous matter, and are easily folded when wind blows.
5, elbow type. The head and stem of the ear were yellow and the sheath stalk tissue was softened, and the plant tip was tilted to one side.
6 parietophyte type. Some varieties of susceptible leaves clustered and erect.
7 abortive or empty stalk type. Light-sick plants can bear head and fruit, but they have small spikes and few seeds; serious female and tassels are aborted, malformed, and cannot lead to heading, or form empty stalks (Note: This symptom is similar to "boron deficiency syndrome" but lacking Boron is generally found in sandy soils, poor soils with poor retention of soil and organic matter, and long-term persistent drought; and the disease occurs under conditions of high rainfall and high humidity). The root system of the diseased plant is usually underdeveloped, the main root is short, the root is fine and numerous, and it is velvety, and the root and the crown turn brown and rot. Under high humidity conditions, the diseased part appeared pink to pink moldy.
Third, control methods
1, timely fertilizer. Maize fertility process enters the big bell-mouth period, and it is necessary to quickly apply topdressing nitrogen fertilizer to corn, especially for the heavier land masses, to do early work of fertilizers. At the same time, we must do a good job on spraying foliar fertilizer and growth regulators to promote early-onset seedling growth, supplement nutrients, and improve resistance to stress.
2, scientific and rational use of pharmaceutical agents. The broad-spectrum fungicide can be used to prevent and control the just-influenced land, such as 50% carbendazim WP 500 times or 70% thiophanate-methyl plus streptomycin plus leaf fertilizer. 7-day share of medicine 2-3 times
3. For the land that is difficult to save due to severe disease, it is necessary to do a good job in destroying the plant in time.
Iridology Camera Health Analyzer
Iris Iriscope Iridology Camera:
Iris holographic diagnostics is a kind of knowledge that applies non-drug and natural therapy to analyze and care for the body by analyzing the iris and pupil to analyze and regulate the health condition of the body. In the field of health medicine, it is called non-invasive health testing and non-drug health intervention. It is a traditional clinical health medicine in Europe.
Iris Iriscope Iridology Camera System Functions:
1. Adjust brightness through either software or switch on handle line, delete the photos, and adjust the focus, quick fixed photos with white balance and high stability of colors. Connects directly with computer without outside power and easy to operate.
2. The software can save the client information and irises also the details of products that you recommend them. After taken the photos, you can analysis the irises and later compare the irises pictures when your client comes back to see their progress. Can print an analysis report. Save the photos according to the date & time you take the photos.3. This machine will help the client know his health condition, including the problem which you have had in the past. The Iridology will be your health counselor, tell you how to keep away from the illness.
Iris Iriscope Iridology Camera Specification:
* Nice appearance and innovative design
* LED illuminator around lens
* Imported lens with plated layer
* 12MP high resolution CCD sensor
* Special DSP image processor, Optical Image Stabilizer
* Single capture button and digital pause capture.
* Adjustable focus to give clear image.
* Auto white balance and contrast adjustment, Color Temperature Filter
* Compatible with iris lens, hair lens.
* Deliver clear and accurate images.
* Easy to operate.
* OS: Windows XP, WIN2000, 2003, Vista, Win7. Win8,win 10
What is the primary benefit of photo iridology?
Not only does it bring clues to your iridology analysis, but it helps to create a better connection with your patient. The patient, who`s naturally curious, is eager to see their own iris. With some simple explanations they can get a basic understanding of your analysis. The connection with your patient strengthens and their understanding of their process improves.
* Iris analysis system: international technology, unique functions.
* Iris analysis system is a medicinal tool that checks the body conditions and prevents diseases from occurring.
* We brought in the advanced iris analysis technology from Germany to lead people to discover sources of illness, and care the body health and spirit in anyways.
* The instrument can show the body conditions of customers and suggest customers the suitable health food, and the plans to care their bodies.
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Shenzhen Guangyang Zhongkang Technology Co., Ltd. , https://www.nirlighttherapy.com