In areas where citrus is grown, after years of planting, the use of chemicals, and the decline of the terminal market, the citrus area is facing the following problems:
1. After years of pesticide use, resistance to pests and diseases increases;
2. Pests and diseases are easy to break out and difficult to control;
3. The citrus market is in recession, and farmers are reluctant to use pesticides.
In response to the above problems faced by citrus areas, we need control agents with the following characteristics:
1. Solve the resistance problem
Resistance to chemical agents is very serious due to continuous use. For example, "ethyl acetonitrile" used to control red spider mites, after one year of continuous use, the control effect has dropped from the original 95% to only 50%-60% at present. The preventive effect of mineral oil is stable at about 80% all year round. The preventive effects of Mancozeb and Copper have remained as stable as they have been for decades.
Mineral oil blocks breathing and gas exchange by covering the surface of spider mites and eggs, causing spider mites to suffocate and die. It is a physical killing and is not easy to develop resistance.
Mancozeb has been in use for more than 50 years due to its multiple action sites, low resistance to resistance, broad bactericidal spectrum, and long duration of effect, and no resistance has been reported so far.
King Copper releases copper ions and binds to the biochemical enzymes of pathogenic bacteria, inhibiting their activity, thereby interfering with the metabolic process of pathogenic bacteria. It has many action sites and is not prone to resistance.
2. Broad-spectrum and effective, cost-effective and low-cost
Both Copper and Mancozeb are multi-site fungicides that have good effects on a variety of fungi and bacteria. They can prevent and treat many diseases such as citrus canker, scab, anthracnose and even sooty disease. Mineral oil can also control citrus red spider mites and rust ticks. The "oil-copper-manganese" combination is more applicable in citrus areas and has a wider control spectrum, making it suitable for promotion and use in a wide range of areas.
Mancozeb, king copper, and mineral oil have been relatively stable in this year's environment of large changes in the price of raw materials. They are cheap, have good control effects, are low in cost, and are cost-effective.
3. Good quick-acting and strong efficacy
The combination of "oil, copper and manganese" can synergize with each other. The strong penetration of mineral oil strengthens the efficacy of mancozeb and king copper. It originally takes 4-6 hours to take effect. With the help of mineral oil, this time will be greatly reduced. Some areas where pests and diseases are prone to outbreaks are easier to control after using the "Oil Copper Manganese" combination. Coupled with the unique insecticide and disease prevention method of "Oil Copper Manganese" and no cross-resistance with other products, the efficacy of the "Oil Copper Manganese" combination is also more powerful.
Recommended usage of "Oil Copper Manganese" combination
Dilution ratio: 200 times for mineral oil, 500-1000 times for king copper, 600-800 times for mancozeb.
Usage period: Use once in the spring after the shoots mature, once a month during the fruit expansion period, avoid the flowering and color changing periods, and use at a reduced concentration during the flowering period.
Precautions when using the combination of "Oil Copper Manganese"
1. It is not recommended to use if the temperature is too high: Mineral oil is prone to phytotoxicity when used at high temperatures. It is recommended to reduce the concentration when the temperature is higher than 30 degrees Celsius. It is not recommended to use it when the temperature is higher than 35 degrees Celsius. It is generally recommended to use it in the evening when the temperature is high in summer.
2. Avoid mixing with fungicides that are too penetrating, such as azoxystrobin, emulsifiable oil insecticides and fungicides, etc. Do not mix with alkali pesticides, which may cause phytotoxicity of copper preparations and reduce the effect of manganese substitutes. If you are not sure, it is best not to mix other chemical pesticides. Mixing with Yinghui amino oligosaccharide will improve safety. (Involving oligosaccharide technology)
3. There are many citrus varieties. When promoting some particularly thin-skinned citrus varieties that are sensitive, it is recommended to conduct small-area testing before promoting.
