Scorched leaf disease, yellow leaf disease, and dry leaf disease are the common names for downy mildew by vegetable farmers. Downy mildew spreads quickly, causes serious damage, and is difficult to eradicate. It is one of the most common and difficult to control diseases on vegetables such as cucumbers, melons, loofahs, bitter melons, cabbages, and spinach. Today, I will introduce a new agent, propamocarb hydrochloride, that is specifically used to control downy mildew and blight.
1. Product information
Propamocarb hydrochloride is an aliphatic, highly efficient, systemic, and low-toxic fungicide. It inhibits the biochemical synthesis of phospholipids and fatty acids in the cell membrane of pathogens, inhibits the growth of pathogenic mycelium, the formation of sporangia, and the germination of spores, thereby killing pathogens. Since the agent has a good systemic conductivity, it can be absorbed by the roots, stems, leaves and other parts of the crop and transmitted to various parts of the plant to kill the pathogens in various parts. It has a protective and therapeutic effect and is suitable for soil treatment, seed treatment, foliar spray and other methods of use.
2. Main features
(1) Good systemic conductivity: Propamocarb hydrochloride has a good systemic conductivity. Soil treatment can be quickly absorbed by the roots of crops and transported upward to the whole plant. After spraying, it can be quickly absorbed by the leaves and quickly play a role in protecting the leaves.
(2) Broad fungicide spectrum: Propamocarb hydrochloride can be used to prevent and control downy mildew, black leg disease, damping-off disease, blight, late blight, cotton rot, white rot, white rust, clubroot and other diseases. It is especially effective against downy mildew, blight and damping-off disease.
(3) Prevention and treatment: Propamocarb hydrochloride has good systemicity and can enter the body of crops and be transmitted in the body. It has a preventive and therapeutic effect on diseases such as downy mildew, and the treatment effect is more thorough.
(4) Good rapidity: After spraying, Propamocarb hydrochloride can be quickly absorbed by the leaves of crops and take effect in 30 minutes. It is particularly effective in preventing and controlling downy mildew and blight that spread rapidly.
(5) Flexible use: Due to its good systemicity, Propamocarb hydrochloride has flexible and diverse use methods. It can be used for spraying, soil treatment, root irrigation and seed dressing. Appropriate use methods can be used according to needs.
(6) Good safety: Although Propamocarb hydrochloride has good systemicity, it is very safe for crops. Even if it is used in the most sensitive conditions of crops such as seedling stage, flowering stage and young fruit stage, it will not cause phytotoxicity.
(7) Good compatibility: Propamocarb hydrochloride can be mixed with a variety of agents such as oxazolidinone, kasugamycin, fluopyram, fluazinam, and difenoconazole, and the synergistic effect is obvious.
3. Applicable crops
Propamocarb hydrochloride can be used for a variety of crops such as cucumbers, tomatoes, watermelons, melons, peppers, eggplants, grapes, cabbages, radishes, cabbages, and tobacco. 4. Usage
(1) Soil treatment: When raising seedlings of tomatoes, eggplants, peppers, cucumbers, and melons, use 25 ml of 72.2% propamocarb hydrochloride solution, add 30 kg of water, spray the nutrient soil, mix well, and sow. This can effectively prevent the occurrence of diseases such as damping-off disease and root rot in the seedling stage.
(2) Root irrigation: In the early stage of diseases such as cabbage clubroot and radish black root disease, 72.2% propamocarb hydrochloride 600 times diluted can be used for root irrigation to quickly control the spread of the disease.
(3) Foliar spray: In the early stage of downy mildew and blight of crops such as cucumbers, melons, and grapes, 72.2% propamocarb hydrochloride 600 times diluted can be used for uniform spraying to quickly control the continued harm and spread of the disease.
Special reminder
Propamocarb hydrochloride and cymoxanil are not the same agent. Propamocarb hydrochloride is more water-soluble and moves faster in the crop body. It is recommended that propamocarb hydrochloride be the first choice when preventing and controlling downy mildew, blight, and damping-off.
