Phosphorous Acid Derivatives for Fungal Control

Phosphorous Acid Derivatives are ideal for the Control of Pythium, Phytophthora, Fusarium and other Disease Causing Fungi in Hydroponics and other Cropping Situations. They also have a reputation for enhancing a plant’s ability to resist disease.

(This product is Not to be confused with Phosphoric Acid – which is used for pH control in hydroponics).

Pure Hydroponics stocks the brand Phos 400™ which is  40% (400g/L) of the active ingredient being a mixture of mono and di potassium salts of phosphorous acid (aka. phosphonic acid).

Pythium, Phytophthora and Fusarium can cause widespread damage to plants in a hydroponic system.

Good water treatment with products such as Oxine will remove these pathogens from the incoming water supply, however  gnats, shore flies and similar insects can carry the fungi into a hydroponic system from flooded ditches, swamps and ponds where they breed. These are the source areas where the above-mentioned pathogens are most prevalent.

The use of Phos 400™  is an effective treatment for targeting these water borne pathogens.

Phos 400™ can be applied in three ways:

– As a foliar spray

– As a nutrient solution tank additive

– As a soil or media drench

Available in: 2 Litre, 5 litre, 20 litre, 200 litre grades.

Phosphorous Acid Derivatives such as Phos 400™ are cleared for safe usage on all vegetable crops in New Zealand.

Please see the attached PDF article below for a more detailed explanation of this product and its applications.

Phosphorous Acid Derivatives