Propamocarb is a widely used systemic fungicide that protects cucumbers, tomatoes and other crops against a wide range of pathogens. It works through a unique mechanism that differs from other fungicides, making it particularly useful in controlling resistant pathogens. 

Mode of Action

Mechanism of Action
Propamocarb inhibits the biosynthesis of phospholipids and fatty acids in fungal cell membranes. This disruption prevents hyphal growth, spore sac formation, and germination. Because its mode of action is different from that of other fungicides, it is effective against pathogens that have developed resistance to commonly used fungicides.

Cross-Resistance
Due to its distinct action mechanism, propamocarb does not exhibit cross-resistance with other fungicides. This makes it especially effective against fungi resistant to other treatments.

Suitable Crops and Safety

Primary Crops
Propamocarb is primarily used for vegetables such as cucumbers, bell peppers, tomatoes, lettuce, and potatoes, as well as for tobacco, strawberries, lawns, and ornamental plants. When applied at appropriate dosages, it is safe for crop growth and can significantly promote the development of roots, stems, and leaves.

Target Diseases
It effectively controls diseases caused by oomycete fungi, including downy mildew, blight, and damping-off. These diseases can cause severe damage to crops, making propamocarb a crucial component in disease management.

Use technical requirements

Operate in accordance with the safe use of pesticides, and use the "secondary method" to dilute and dispense. When preparing a liquid, firstly dilute the recommended amount of this product with a small amount of water in a clean container, and then transfer all of it to a sprayer, then make up the amount of water and mix well.

According to the size of the crop, determine the water consumption per mu, prepare the liquid, and spray the plants or leaves evenly.

The application should be foliar spray before or in the early stage of the disease, and it is recommended to apply it every 7-10 days.

Medication method for seedbed irrigation: The seedbed is irrigated at the time of sowing and before the seedlings are transplanted. The amount of liquid medicine per square meter is 2-3 liters, so that the liquid medicine can fully reach the root zone, and the soil is kept moist after watering.

Do not apply on windy days or if it is expected to rain within 1 hour.

Safety interval: 3 days for cucumbers, 4 days for sweet peppers.

The maximum number of uses per season: no more than 3 times.
 

Using Method

Application Methods

Soil Drench
For Seedling Damping-Off and Blight
Apply before or after sowing or transplanting. Use 5-7.5 mL of 72.2% aqueous solution per square meter, diluted with 2-3 liters of water, for soil drenching. This method helps prevent damping-off and blight at the seedling stage.

Spray Application
For Downy Mildew, Blight, and Other Diseases
For each acre, use 60-100 mL of 72.2% aqueous solution mixed with 30-50 liters of water. Apply the solution before or at the early stages of disease onset, spraying every 7-10 days. This approach effectively manages the spread of diseases.

Precautions

Alternate Use with Other Pesticides
To prevent the development of resistance, propamocarb should be alternated with other pesticides. Do not exceed three applications per season.
Avoid Alkaline Conditions
Propamocarb decomposes under alkaline conditions and should not be mixed with alkaline substances to prevent loss of efficacy. Ensure that the pH level of the solution remains within the recommended range.
Health Safety
Pregnant and breastfeeding women should avoid contact with propamocarb to prevent potential health risks.

FAQ

What are the health effects of propamocarb on humans?

Propamocarb has minimal health impacts when used properly, but pregnant and breastfeeding women should avoid exposure.

Does propamocarb affect the environment?

Propamocarb degrades rapidly in the environment, minimizing long-term impacts. However, it should still be used according to the label instructions.

How should propamocarb be stored?

Store propamocarb in a cool, dry place and avoid mixing it with alkaline substances.

What is the shelf life of propamocarb?

The shelf life of propamocarb is typically indicated on the product packaging, generally around two years.

Can propamocarb be mixed with other fungicides?

Yes, but avoid mixing with alkaline substances. Always refer to specific mixing instructions and product labels.

Are you a factory?

We could supply insecticides, fungicides, herbicides, plant growth regulators etc. Not only we have our own manufacture factory ,but also have long-term cooperated factories.

Could you provide some free sample?

Most samples of less than 100g can be provided for free, but will add extra cost and shipping cost by courier.