HortiPhos 600 is a neutral (pH 7.0) systemic fungicide registered with the APVMA.
HortiPhos 600 is commonly used when controlling phytophthora, downy mildew and the related members of the oomycetes (a group of pathogens). The phytophthora feeds on plant roots and stems. It invades the roots of plants to get the nutrients it needs. This invasion reduces plant growth by inhibiting the transport of water and nutrients within the plant, often resulting in the decay, dieback and death of the plant in question.
HortiPhos 600 works in two modes of action. The first mode of action is a fungicidal effect, where the phosphite directly controls the fungal pathogen. The second mode of action stimulates the plants natural host defences to prevent the disease.
General Application Rates
As per APVMA registered label. Please review MSDS before usage.
Phosphorous (Phosphonic) Acid:
Download the Material Safety Data Sheet