Mode of Action
Protectant fungicide and bactericide. Deposits must be on the crop before fungal spores begin to germinate.
Target Uses & Dosage
For control of Peronosporaceae in vines, hops, and brassicas; Alternaria and Phytophthora in potatoes; Septoria in celery; and Septoria, Leptosphaeria, and Mycosphaerella in cereals, at 2-4 kg/ha or 300-400 g/100 l.
1. What is Copper hydroxide used for in agriculture?
Copper hydroxide is a broad-spectrum protectant fungicide and bactericide. It is widely used to prevent and control plant diseases such as Peronosporaceae, Alternaria, Phytophthora, and Septoria across crops like vines, potatoes, celery, brassicas, and cereals.
2. What formulations of Copper hydroxide are available?
Commonly available specifications include 97% TC (Technical Grade), 77% WP (Wettable Powder), and 50% WP.
3. How does Copper hydroxide act on fungal pathogens?
It functions primarily as a protective barrier. Deposits of Copper hydroxide must be applied onto the crop surface prior to the germination of fungal spores to effectively prevent infection.
4. What is the recommended dosage rate for crop application?
The standard application dosage is 2–4 kg/ha or 300–400 g per 100 liters of water, depending on the targeted crop and disease severity.
5. What safety precautions should be taken regarding toxicity?
Copper hydroxide is classified as WHO (a.i.) Class III and EPA Class III. It is severely irritating and corrosive to the eyes and a mild irritant to the skin. Proper protective gear (eye protection, gloves) should be worn during handling and application.
Awiner Biotech
