Plant diseases are mostly caused by pathogenic microorganisms. Since pathogenic microorganisms cannot be distinguished by the naked eye, we often can only distinguish them by their symptoms and conditions. The correctness of the discrimination depends on whether we can correctly dispense medicines. Therefore, in the process of chemical control of plant diseases, the correct identification of crop diseases is the basis, and the choice of pharmaceutical agents is the key.
First, how to identify diseases
We know that crop diseases can be classified into fungal diseases, bacterial diseases, viral diseases, nematode diseases, and diseases caused by some parasitic plants according to their pathogens. We can visually identify parasitic plants caused by parasitic plants. Other diseases are identified as such.
Distinction between fungal and bacterial diseases
Both of these diseases exhibit their unique conditions and conditions, and the most fundamental difference is the condition.
(I) Distinctions of diseases In general, pyoderma is a disease inherent to a bacterial disease, and most of it is accompanied by odor; while a fungal disease is manifested around or at the site of its condition as follows: 1 Moldy substance such as frost Mildew is accompanied by a black or white mildew on the back of the leaf, while leaf mold grows grayish purple to dark brown on the back of the leaf. 2 points 3 rust 4 powder 5 sclerotia such as sclerotinia, white tinea disease and so on.
1. Distinctions of the disease 1 The wilting condition, such as the occurrence of yellow wilt or withering, mostly caused by fungal diseases; and the rapid death of the plants while the leaves are still green is bacterial wilt, which is a bacterial disease. 2 Rottenness The decayed rot is accompanied by bacterial pus and malodorous odor mostly caused by bacteria.
In fact, the difference between bacterial diseases and fungal diseases is often identified in combination with their symptoms and conditions.
2. Diseases of the virus include diseases caused by bacteria, viruses, and viruses. The symptoms of the disease include yellowing (such as orange yellow dragon disease), temporal lobe or mosaic (such as cucumber mosaic virus disease). A small number of spots along the stem or fruit (such as tomato virus streak). But do not show symptoms.
(b) Recognition through climatic conditions
(1) Virus diseases generally occur at high temperature and drought conditions.
(2) Bacterial diseases mostly occur after heavy winds and heavy rains (because their pathogens are mainly invaded from wounds).
(3) Different types of fungal pathogens of fungal diseases occur under different climatic conditions.
(c) can be identified through the site of diseased plants Some diseases only occur in the leaves, such as leaf mold, leaf spot, etc.; some only occur in the stem or stem base, such as the incidence of tomato bacterial wilt is the base of the stem On stems, stalk rot occurs only at the stem base.
(4) Judging from the type of crop, such as the wilting of a watermelon plant, we cannot judge it as bacterial wilt (it cannot be judged as a bacterial disease).
(E) Nematodiasis is distinguished from symptoms
Insects are generally seen, and the manifestations are tumors (such as root-knot nematode disease) and dry cokes (such as rice nematode disease).
Second, scientific drug formulations
(I) Drug Formulations for Viral Diseases
In combination with the spread of the virus disease in the field and the damage mechanism, the re-infection of virus disease in the field is mainly through micro-wounds (worms, thrips, and other sucking mouthpart pests spread the virus, and some are caused by artificial field operations. wound). Therefore, in the formulation should pay attention to the prevention and control of insect poisoning is also very critical; in addition its main mechanism of action is to use RNA or DNA in plants, the consumption of protein in plant tissues, so that the performance of the crop yellow, malformation. Therefore, the organic nutrient foliar fertilizer containing trace elements is required to be added in the formula so that the plants can recover. Based on the above reasons, the following points are noted in the compounding of the liquid medicine:
1, the choice of viricide
(1) Moroxydine preparations
According to the feedback from the majority of farmers, the effects of Cankaine and Hyatt are very good. The two agents have good endotracheal permeation. After the drug is administered, the active ingredients can be rapidly transmitted to various parts of the plant, and the RNA of the tail of the virus can be degraded. And protein synthesis, cutting off the virus replication cycle; at the same time, after using Cankaning or Hyatt, the infected cells can be promptly repaired, the cells can be longitudinally elongated, the number of chloroplasts can be increased, the photosynthesis can be strengthened, and the thickness of the leaves can be increased, thereby increasing the crop's Immunity.
(2) Copper compound formulation
The most representative is the diseased plant disease. Because the preparation has been widely used in production for a long time, it is not ideal for control. Violent Viral Granule is a kind of micro-emulsion, which has high stability and high transmission efficiency, can promote the penetration and solubilization of the agent into the plant tissue, and the efficacy is quite obvious.
(3) Iodine
Recently, it is not only a good iodine killer but also a good control of bacterial and fungal diseases. In the high incidence of viral disease can be mixed with other formulations used, has a strong control effect. Practice has proved that with the disease Kang Kang, 1500 times, and kanaming, Ning nannanmycin, powerful virus Weiwei reconstituted, to prevent and cure Luo Hanuo virus disease, tomato virus disease, watermelon virus disease and other vegetable viruses Disease is currently the best formula for feedback. (4) Antibiotic virucides
At present, the most widely used is Ningnanmycin, which is also the most excellent fungicide.
2, the choice of pesticides
It is mainly used for locusts, thrips and other sucking insect pests, such as the standard energy (high-level acetamiprid) promoted by our company, selling points, high purity, golden brake (high content of imidacloprid, content of 70% ), etc., are recognized as excellent insecticides such as aphids and thrips, etc.
3, the choice of leaf nutrients
The correct use of hormones or foliar fertilizers in formulas can help the virus passivation and restore growth. The following types of foliar fertilizers and hormones have a good passivation effect on crop viruses.
(1) Organic leaf foliar fertilizers containing various trace elements such as amino acids, potassium, zinc and calcium, many high-efficiency foliar fertilizers, Nongbao high-efficiency plant nutrient solution, and so on.
3, antibiotics such as these agents are mainly soft Kang (for the control of soft rot disease melon mainly), melon cool (can be used to prevent bacterial keratoses, soft rot, etc., Irrigation can prevent tomato bacterial wilt, Ulcer disease pathogens invade from the roots), Zhongshengmycin (mainly controlling citrus canker), and Ningnanmycin has local feedback to control citrus canker disease.
4. Ao Nong is a fungicide that kills bacteria and fungi. The main reason for this is that the medicament contains the EXO component of the bacteria that kills bacteria in the medicine and has special effects on the control of citrus ulcers.
5, other preparations sweep disease Kang is an iodine preparation, the performance of bacterial disease prevention and control is also very good, especially with the above-mentioned bactericidal agents mixed use, the effect is better. Chlorobromide is also a strong oxidizing agent. It is also effective in controlling bacterial leaf spot and bacterial leaf blight.
Three, fungal diseases formula
First of all, it is necessary to classify fungal diseases, because the same pharmaceutical ingredient formula may have a control effect on a certain type of disease. The following formula can be used for reference in pesticide prescription.
In addition, the copper preparations and organic sulfur in the protective fungicides can control the recurrence of the downy mildew disease, but the copper preparations are not effective against gray molds. When dispensing, it should be noted that the same type of agent should not be mixed.
IV. Formulas for Nematodiasis
At present, the cost of the agents used to control nematodes on the market is relatively high, and nematodes are more specific because of their diseased parts, and the incidence of root disease is more, and prevention and control also bring about greater difficulties. According to our experience, when the root nematode begins to infest, we choose Weigen 1500 times or Anmite 1000 times combined with Shenli Potassium King or Giant Power God to irrigate roots, which can better inhibit the movement of nematodes in the soil. In addition, the use of emergency radio instead of other fertilizers applied to the roots of crops, or root and other fertilizers mixed application, have a better preventive effect on nematodes.
Garlic Granules are exported to many countries.one container can load garlic flakes, garlic granule and Garlic Powder,we can pack the goods at customer's request.
Our produce from garlic flakes to garlic granule:
Garlic flakes--re-dry--flow away the garlic skin--select out the garlic flakes with dark spot by machine color sortor --produce to different size granule
Garlic Granule, 25 kg/carton
Products Description
1. Commodity name: Garlic powder
2. Features:
1) Specification: 80-100 mesh, 100-120 mesh
2) Color: 100% pure natural white, no obvious spot
3) Moisture: 6% max.
3.Packing:
a) Inner packing:12.5kg/2 aluminum foil bags
b) Outer packing: 25kg/ctn
4. Supply period: All year round
5. Conveyance: 18mts/20' FCL
Dehydrated Garlic Granules,Garlic Granules,Dried Garlic Granules,White Dehydrated Garlic Granules
JINING FORICH FRUITS & VEGETABLES CO., LTD. , https://www.forichgarlic.com