Can mancozeb be used as a root drench? Instructions for correct use

The pure product of mancozeb is a white powder, while the technical-grade product is a grayish-white or pale yellow powder. The so-called protection of crops means providing plants with the element Zn; besides solving the symptoms of zinc deficiency, it enhances the plants' ability to resist diseases, thereby relatively speaking playing a bactericidal role.

1. Can mancozeb be used as a root drench?

Mancozeb can be used as a root drench. It is an excellent protective fungicide, belongs to the low-toxicity pesticides, and has the advantages of a broad bactericidal spectrum and being unlikely to induce resistance. Its control effect is obvious, but it does not have a therapeutic effect. Mancozeb contains metal ions, so it has an irritating effect on young leaves and young fruit surfaces. It is usually used as a spray; other methods give poor results. Its efficacy lasts 7-10 days.

2. What advantages does mancozeb have?

1. Mancozeb can not only prevent diseases and kill bacteria; the manganese, zinc and other elements it contains can also serve as nutrient elements to promote crop growth and development.

2. After light rain, there is no need to respray. Mancozeb has relatively strong adhesion and is evenly distributed.

3. It can be mixed with most pesticide fungicides, such as cymoxanil, dimethomorph, carbendazim, etc. For farmers who are not very sure about pesticides, mancozeb is a general-purpose agent, and its bactericidal effect is good.

3. What precautions should be taken during use?

1. Mancozeb should be used with caution during the seedling stage of melons, fruits and vegetables, because seedlings have relatively weak resistance, and using too much can cause phytotoxicity, with gains not worth the losses.

2. Mancozeb is weakly acidic, so do not mix it with alkaline agents or copper preparations, so as to avoid reducing its efficacy; when spraying, the timing needs to be grasped, generally using it at the early stage of disease onset, and the spray should be applied evenly.

3. For melons, fruits and vegetables, try not to spray the agent within half a month before harvest, so as to avoid causing phytotoxicity.