Vegetables are foods that are directly supplied to people. The correct use of pesticides on vegetables is directly related to people's health and safety. It is also related to selling a good price. Therefore, pay special attention to the following issues during use:
It is strictly forbidden to use highly toxic and highly residual pesticides such as 1605, 1059, methamidophos, organic amalgam, arsenic, chlordane, cyanide, dibromochloropropane and fluoroacetamide. At the same time, it is necessary to strictly implement the "safe interval" system for pesticide use, and do not spray pesticides 10-15 days before harvesting vegetables to ensure that vegetables meet the pollution-free standards.
The right medicine and timely medication: There are many diseases and insect pests in vegetables, and sometimes several pests and diseases occur at the same time. It is necessary to use pesticides and pesticides in a targeted manner. For example, foraging pests (smoked worms, melons and wild mites), stomach poisons (such as kung fu, killing enemies) should be used and sprayed at the first and second instar larvae. The larvae above three years old are highly resistant to drugs; Pests such as spider mites should be treated with systemic agents (such as sputum, Kangfuduo).
Correctly grasp the concentration of various pesticides: At present, there are many kinds of pesticides and dosage forms. The pesticides with the same name and different dosage forms are often different in the concentration and application method and time. Therefore, it is strictly in accordance with various pesticide varieties. The recommended dose is to be used.
Implementation of alternating rotation and mixed drugs: In a region, such as the continuous use of a certain pesticide for a long time, it is very easy to make the resistance of the harmful organisms, resulting in a significant reduction in the control effect, and even increasing the concentration does not help. Therefore, in the production practice, it is effective to control the pests by adopting different varieties of pesticides with different functions of rotation, rotation, and use (such as pesticides with different functions such as stomach poisoning, contact killing, and systemic absorption). The ground achieves the effect of overcoming resistance, quickly killing and reducing costs. By the same token, scientific and rational compounding of mixed pesticides can not only take advantage of long-term supplements to expand the control targets and improve the control effect, but also effectively exert their respective advantages to delay the development of pests and diseases and reduce the cost of prevention. For example, when 75% chlorothalonil is mixed with 44% wormwood 1000 times liquid spray, most of the pests and diseases on vegetables can be controlled at the same time. However, do not blindly mix and use, you should choose the same nature (such as acidic or alkaline) of two or three kinds of pesticides mixed, so that they can be blended according to the respective concentration requirements, with the mixing with the spray.
It is strictly forbidden to use highly toxic and highly residual pesticides such as 1605, 1059, methamidophos, organic amalgam, arsenic, chlordane, cyanide, dibromochloropropane and fluoroacetamide. At the same time, it is necessary to strictly implement the "safe interval" system for pesticide use, and do not spray pesticides 10-15 days before harvesting vegetables to ensure that vegetables meet the pollution-free standards.
The right medicine and timely medication: There are many diseases and insect pests in vegetables, and sometimes several pests and diseases occur at the same time. It is necessary to use pesticides and pesticides in a targeted manner. For example, foraging pests (smoked worms, melons and wild mites), stomach poisons (such as kung fu, killing enemies) should be used and sprayed at the first and second instar larvae. The larvae above three years old are highly resistant to drugs; Pests such as spider mites should be treated with systemic agents (such as sputum, Kangfuduo).
Correctly grasp the concentration of various pesticides: At present, there are many kinds of pesticides and dosage forms. The pesticides with the same name and different dosage forms are often different in the concentration and application method and time. Therefore, it is strictly in accordance with various pesticide varieties. The recommended dose is to be used.
Implementation of alternating rotation and mixed drugs: In a region, such as the continuous use of a certain pesticide for a long time, it is very easy to make the resistance of the harmful organisms, resulting in a significant reduction in the control effect, and even increasing the concentration does not help. Therefore, in the production practice, it is effective to control the pests by adopting different varieties of pesticides with different functions of rotation, rotation, and use (such as pesticides with different functions such as stomach poisoning, contact killing, and systemic absorption). The ground achieves the effect of overcoming resistance, quickly killing and reducing costs. By the same token, scientific and rational compounding of mixed pesticides can not only take advantage of long-term supplements to expand the control targets and improve the control effect, but also effectively exert their respective advantages to delay the development of pests and diseases and reduce the cost of prevention. For example, when 75% chlorothalonil is mixed with 44% wormwood 1000 times liquid spray, most of the pests and diseases on vegetables can be controlled at the same time. However, do not blindly mix and use, you should choose the same nature (such as acidic or alkaline) of two or three kinds of pesticides mixed, so that they can be blended according to the respective concentration requirements, with the mixing with the spray.
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