Corn bacterial wilt, also known as corn stem rot or stalk rot, is a serious disease that causes serious damage to corn production. Corn production areas in the country all occur to varying degrees. The condition of the disease has developed rapidly and is fierce. In general, the diseased plant rate is 10%-20%, serious 40%-50%, and particularly serious as high as 80%. The farmers call it “violent death†and have a great impact on corn yield. Big. Corn bacterial wilt is a typical soil-borne disease, which begins in the grain-filling stage of maize and is the peak period of disease from the milk ripening stage to the wax ripening stage. At the early stage of disease, the leaves of the plants projected, with grayish blue and dry, frost-like, roots and bases of the stems appear watery rot, further development of the leaves become yellow, the base of the roots and stems become brown, the vascular bundle of the pith discolor, the base of the stem Hollow and soften, so that the whole plant lodging, the incidence of light so that the ear drooping, grain weight decreased. According to the disease development speed and symptoms, it can be divided into acute type and common type: acute type has a rapid onset rate, and the whole plant quickly loses water and withers in 1-2 days. It seems that boiling water is hot and the leaves suddenly appear gray-blue and withered. , It is bluish; common type has a slower onset. Usually the whole plant expresses symptoms within 5-10 days. The whole plant leaves start from the lower end of the stem and turn upwards in the order of yellowish bluish or blue and dry, and the stem base is brown with water stains. The epidermis loses water and shrinks slightly, and then becomes soft and stripe depression. In severe cases, the leaves are all dry and the roots are necrotic. The stems are hollow in the medullary canal and are easily folded. Incidence conditions 1. Climatic conditions: The incidence of corn bacterial wilt is in the late growth period of corn, and it mostly occurs in humid climate conditions. Therefore, the weather condition from tasselling to maturity has the greatest impact on the occurrence of diseases, and most of the rainfall in July and August With large amounts of rainfall, the incidence of corn bacterial wilt is serious. If the weather suddenly turns cloudy after a continuous rainstorm, the temperature rises, often leading to a bacterial wilt pandemic, because the rainfall at this time causes the germination and invasive conditions of the pathogen spores. In the early stages of corn-fat-resistant milk-cooking stage, a large number of plants were onset. 2. Growth period: Maize growth period is different, the degree of incidence is different, the wax ripening period is heavier than the milk ripening period, the milk ripening period is heavier than the filling period, the symptoms are rarely shown before tasseling, and the more severe the disease is in the late growth stage. Control methods 1. Strengthen cultivation management. Rational fertilization, to avoid partial nitrogen fertilizer, pay attention to the rainy season to exclude water, stage soil, timely cultivator loose soil, to avoid all kinds of damage. 2. When the stem base is onset, the soil around the root can be opened in time to reduce the humidity and reduce the infection. The soil is cultivated after the onset of the disease. 3. Chemical control: When the sporadic diseased plants are found in the middle and late stages of corn growth, metalaxyl 400 times solution or carbendazim 500 times solution can be used to irrigate the roots. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone
Medical Cold Patch
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Throat Pain Relief Patch
[Name] Medical Cold Patch
[Package Dimension] 36 round pieces
The pain relief patch is composed of three layers, namely, backing lining, middle gel and protective film. It is free from pharmacological, immunological or metabolic ingredients.
[Scope of Application] For cold physiotherapy, closed soft tissue only.
[Indications]
The patches give fast acting pain relief for acute and chronic tonsillitis.
[How To Use a Patch]
Please follow the Schematic Diagram. One piece, one time.
The curing effect of each piece can last for 6-8 hours.
[Attention]
Do not apply the patch on the problematic skin, such as wounds, eczema, dermatitis,or in the eyes. People allergic to herbs and the pregnant are advised not to use the medication. If swelling or irritation occurs, please stop using and if any of these effects persist or worsen.notify your doctor or pharmacist promptly. Children using the patch must be supervised by adults.
[Storage Conditions] Store below 30c in a dry place away from heat and direct sunlight.
High temperature and high humidity pay attention to the control of corn bacterial wilt