Pesticide Classification: Fungicide

Chemical group: Inorganic compounds

Chemical composition: Dicopper chloride trihydroxide, Cu₂(OH)₃Cl

Hi-Copper is a wettable powder; each kilogram contains 850 g of copper oxychloride equivalent 500 g of metallic copper.

Mode of action:

Spores and cells of fungi and bacteria absorb copper during their growth, which causes toxicity to spores and their death, copper also inhibits the enzymatic activity inside the cells of the pathogenic fungi, which causes the cessation of vital activities and thus the death of the mycelium of the fungus

 Systemic action inside the plant:

Non-systemic pesticide works by contact.

Pesticide efficacy:

Broad spectrum preventive pesticide against fungal and bacterial diseases, it should be sprayed on the vegetative growth before the germination of spores of the pathogenic fungus and occurrence of injury.

Diseases that are controlled by COPRAX: according to the recommendations of the pesticides committee of the Ministry of Agriculture and land reclamation

 General recommendations for use:

It is a broad spectrum pesticide against fungal and bacterial diseases.

PHI: 3 days on grape fruits and 15 days on grape leaves.

Maximum residue limits in grapes (MRL): 50 mg/kg of grapes.

Application method: Spraying on the vegetative growth.

Product advantages:

Copper does not undergo hydrolysis or photolysis like organic pesticides, but the copper oxychloride compound decomposes by high heat in an alkaline medium to copper oxide, and also the same decomposition occurs when exposed to heating.

Mixability:

Cannot be mixed with pesticides sensitive to alkaline medium such as organophosphorus pesticides as well as carbamate pesticides, and cannot be mixed with highly alkaline pesticides such as lime sulfur (calcium polysulfide).

Toxicity of copper hydroxide to plants:

The pesticide does not cause toxicity to grape leaves while it probably causes phytotoxicity to peach and plum leaves especially at low temperatures.