The zinc content of Zineb is 2.55%, the zinc content of mancozeb is 8%, the zinc content of Metiram is 15.8%, and the zinc content of Propineb is 18%.
The bactericidal principle is the same as that of mancozeb. Propineb is a new type, high-efficiency, low-toxicity, broad-spectrum carbamate-type protective organosulfur fungicide, which mainly inhibits the oxidation of pyruvate in pathogenic bacteria. Today, I will tell you about benzin in detail.
Features:
Wide bactericidal spectrum: high control effect on box mildew, early blight, late blight, leaf spot (black spot and brown spot, etc.), anthracnose, scab, ring spot, etc. Prevent and control various crop diseases such as apple spot defoliation, Chinese cabbage downy mildew, cucumber downy mildew, tomato early blight, tomato late blight, and grape downy mildew.
Good drug effect: It has protective bactericidal effect with both quick-acting and sustained-acting effects.
Good safety: propineb has a long duration of effect and is safe for crops, humans, animals and other beneficial organisms. Since it does not contain manganese that may cause phytotoxicity to crops, it is safer for crops and has low toxicity. It is classified according to the toxicity of Chinese pesticides Standard, Propineb is a low-toxic fungicide. It is non-toxic to bees; it is harmless to users and can be used during the flowering period and all growth stages of crops.
Function of micro-fertilizer: Propineb can release zinc ions to supplement the zinc element needed for crop growth, so it has the effect of foliar fertilizer, and the fruit and vegetables are well colored and of high quality.
Instructions
Propineb is a protective fungicide and must be sprayed before or during the onset of disease.
Do not mix with copper preparations and alkaline agents. If copper preparation or alkaline agent is sprayed, it needs to be used after 1 week.
How to use: Apply before the onset or at the early stage of the onset, depending on the degree of the onset of the crop, usually spray 3-4 times, spraying every 5-7 days.
1. Grape downy mildew
At the beginning of the onset, it is necessary to spray 400-700 times of 70% brilliant blue wettable powder, about 3 times, with an interval of about 7 days.
2. Citrus anthracnose
In the early stage of the disease, use 70% Xuanlan wettable powder to dilute 600-800 times for spraying.
3. Tomatoes
(1) Tomato early blight: Early blight is usually easy to develop when tomatoes are just fruiting. Spray 125-190 grams of 70% brilliant blue wettable powder per mu with water, and spray once every 5-7 days. Spray 2~3 times to see the effect.
(2) Tomato late blight: After late blight appears, the diseased plants need to be removed before spraying. 70% Xuanlan WP 150-220 grams, spray about 2-3 times, with an interval of 5-7 days.
4. Cucumber downy mildew
After planting cucumbers in the open field, it is easy to get sick in a warm and humid environment. Before spraying, remove the diseased leaves. Use 70% Xuanlan WP 150-215 grams mixed with water and spray once every 5-7 days. A total of 3 sprays are required. Spray once after the rain to strengthen the preventive effect.
5. Apple spot leaf defoliation disease
This disease is very easy to infect young leaves. When the disease occurs, it needs to be sprayed with 600-700 times liquid of 70% brilliant blue wettable powder, sprayed once every 7 days, continuously sprayed 3-4 times, and re-sprayed once in autumn.
Precautions
1. Propineb is a protective fungicide, and the drug effect is the best at the early stage of the disease.
2. Do not mix with copper preparations and alkaline agents. If these agents are used, it is best to use propineb at an interval of more than 7 days to prevent the reduction of drug efficacy or the occurrence of phytotoxicity.
3. It is best not to use propineb alone for a long time, as it will produce resistance, and it is best to use it alternately.
4. Propineb is best stored in a dry and ventilated place, and its efficacy can last for more than 2 years.
