Mancozeb is a highly effective, low-toxicity, broad-spectrum protective fungicide , effective against diseases such as gray mold, downy mildew, anthracnose , black spot, and early blight on vegetables and fruit trees. So, can mancozeb be mixed with potassium dihydrogen phosphate? Let's take a look.
1. Can mancozeb be used in combination with potassium dihydrogen phosphate?
Mancozeb should generally not be mixed with potassium dihydrogen phosphate; it is recommended to use it alone for better bactericidal effect. Mancozeb should also not be mixed with alkaline or copper-containing agents, as this can easily lead to chemical reactions and reduced efficacy.
II. What diseases does mancozeb primarily treat?
Mancozeb is mainly used to control pear scab, citrus scab and canker, apple leaf spot, grape downy mildew, lychee downy mildew and Phytophthora blight, bell pepper blight, cucumber, cantaloupe, and watermelon downy mildew, tomato blight, cotton boll rot, wheat rust and powdery mildew, corn leaf spot and stripe, tobacco black shank, and yam anthracnose, brown rot, root and collar rot, and leaf spot. Mancozeb is effective against both higher and lower fungi; however, it is ineffective against bacterial diseases. In areas with a high incidence of bacterial diseases, other fungicides should be added. Currently, it is an ideal agent for controlling early blight in tomatoes and late blight in potatoes.
3. What is the best combination of mancozeb and zinc?
1. Mancozeb can be mixed with other fungicides such as cymoxanil mancozeb, oxadiazon mancozeb, metalaxyl mancozeb, carbendazim mancozeb, and dimethomorph mancozeb to achieve a good bactericidal effect.
2. Mancozeb can also be mixed with carbendazim to control pear scab, ring spot, and anthracnose. For control, you can directly spray 70% mancozeb wettable powder + 50% carbendazim wettable powder, or spray 65% mancozeb wettable powder + 70% thiophanate-methyl wettable powder.
IV. Precautions for using mancozeb
1. Mancozeb can be used on sunny mornings, but caution should be exercised when using it in strong sunlight exceeding 35°C. High temperatures and strong ultraviolet light can cause the active ingredients to convert too quickly, which may lead to phytotoxicity.
2. Mancozeb can be mixed with many pesticides , but because it contains manganese, zinc and other ions, it should be avoided to mix it with alkaline pesticides and compounds containing heavy metals such as copper.
