Concent ® — a product containing the active substances fenamidon, belonging to the imidazolinone class with a mesostemnic mode of action, and propamocarb-hydrochloride, belonging to the carbamate class with a systemic mode of action. Unique is the combination of the product’s dual action — against Alternaria and late blight of solanaceous crops — with a systemic mode of action against late blight, which provides an excellent opportunity to combat mixed infections. Simultaneously, as with all products containing propamocarb, Concent has the ability to stimulate plant growth. The systemness of propamocarb is the guarantee of reliable prophylactic action against late blight.
The mode of action of fenamidon provides prophylactic, antispore, and partial curative effects against both pathogens. The product is also effective against false powdery mildew on many crops. Late blight of potato and tomato is considered the most dangerous disease of these crops.
Infection of plants by disease can very quickly lead to complete crop loss if the crop is inadequately protected. Cool, humid nights and warm days create optimal conditions for the development of late blight.
On the outer surface of leaves infected with late blight, yellow-green watery spots appear, which later turn brown.
In conditions of high humidity or during rainy weather, a white fungal layer forms on the underside of the leaf, which is a characteristic sign of the disease. Moreover, spores of the fungus are washed off by rain from leaves and stems, and after falling into the soil, they infect potato tubers, leading to significant crop loss. Alternaria or brown spot disease of potato and tomato, caused by Alternaria solani and A. alternata, is a disease that has become widespread with the warming of the climate.
It usually appears earlier than late blight, which is why it is also called "early rot." Warm weather creates optimal conditions for disease development: typically, small dark spots or large spots with concentric dark rings on light backgrounds appear on leaf surfaces. On tomatoes, Alternaria causes fruit rot.
MECHANISM OF ACTION
Fenamidon disrupts the respiratory process in the mitochondria of the pathogen's cells. Propamocarb-hydrochloride disrupts the biosynthesis of phospholipids and fatty acids.
ADVANTAGES
Combination of two active substances with fundamentally different modes of action prevents resistance.
Ability to control mixed infections.
Prophylactic, curative * and antispore action.
Additional stimulating effect.
Favorable toxicological characteristics — compliance with Food Chain conditions.
* Partial curative effect at early stages of infection.
