Complaint
Copper Hydroxide 77%WP High quality Agriculture Copper hydroxide Fungicide copper 2 hydroxide
| Active ingredient | Copper hydroxide | |
| Chemical name | copper hydroxide (Cu(OH)2) | |
| Classification | Fungicide / Agrochemical | |
| Formulation | 77% WP | |
| Biochemistry | Non-specific thiol reactant, inhibiting respiration. Copper-II-ion (Cu++) is taken up by the spores during germination and accumulates until a sufficiently high concentration is achieved to kill the spore cell; the activity is limited to the prevention of spore germination. | |
| Mode of action | Protectant fungicide and bactericide. Deposits must be on the crop before fungal spores begin to germinate. | |
| Usage | For control of Peronosporaceae in vines, hops, and brassicas; Alternaria and Phytophthora in potatoes; Septoria in celery; and Septoria, Leptosphaeria, and Mycosphaerella in cereals | |
| Toxicology | Oral: Acute oral LD50 for rats 489 mg/kg (tech.). Skin and eye: Acute percutaneous LD50 for rabbits >3160 mg/kg. Severely irritating and corrosive to eyes, mild skin irritant. Inhalation: LC50 > 2 mg/l air. | |
| Certificate of quality | Copper hydroxide 77% WP | |
| Item Appearance Content of Copper hydroxide Suspensibility, Wetting time Fineness (through 45um test sieve) Moisture pH | Specification Blue-green powder ≥77% ≥70% ≤60s ≥98% ≤3.0% 6.0-9.0 | |
Applications
Biochemistry Non-specific thiol reactant, inhibiting respiration. Copper-II-ion (Cu++) is taken up by the spores during germination and accumulates until a sufficiently high concentration is achieved to kill the spore cell; the activity is limited to the prevention of spore germination. Mode of action Protectant fungicide and bactericide. Deposits must be on the crop before fungal spores begin to germinate. Uses 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. Formulation types SC; WP.
