AQ-sf

Description

Ampelomyces quisqualis (AQ-sf) is a local fungal isolate to South Africa. Acting as a biological fungicide, it’s a hyper parasite to the common powdery mildew. It has been known to attack up to 64 kinds of mildew.

Current Batch Expiry Date – 16/04/25

Mode of Action:

Plants infected with powdery mildew will display white patches of fluff. It can be found on leaves, stems or flowers. The pest fungus will pierce cell walls and sap plants dry of food and fluids. If left untreated plants can easily die.

After AQ-SF application, A. quisqualis spores enter the body of the powdery mildew. It then spreads within the fungus’ body over a few days. At this time, PM will not die but also not be able to multiply. A. quisqualis will then fruit inside the ‘strands’ of the powdery mildew, killing it in the process. Plant tissue infected with powdery mildew killed by A. quisqualis will also die.

Most effective as a biological fungicide when used on a regular basis. Apply as prevention rather than cure. Able to over winter or survive inter crop periods. Success is most common at warmer temps like 20-30°C.

AQ-sf is not compatible with:

• Jadam Wetting Agent.
• Copper and sulphur products.
• General and systemic fungicides.
• Citrus oils, oxidisers and sterilisers.

Suitable wetting agents include mono-silicilic acid, fulvic acids and molasses. Horticultural oils like Bio-Neem or canola aid efficacy.

Active ingredient – Ampelomyces quisqualis

AQ-sf Direction for use:

• 5ml per litre dechlorinated water sprayed 1-2 times per week as a preventative(pH 5-7)
• 10-25ml per litre sprayed 2-3 times per week for infestation control.
• Safe to apply until 3 days before harvest.
• Apply in the coolest part of the day.
• 400g/1L AQ-SF/1 ha

*Best used with other biological fungicides like BioTricho (Trichoderma harzianum).

STORE IN THE FRIDGE TO EXTENDED SHELF LIFE BY UP TO 6 MONTHS. Product is still viable if accidentally frozen and still within expiry date. 

Do not consume flower or it’s products if infected with powdery mildew. It can be unsafe and effects can include respiratory infections. Read our guide on Powdery Mildew Prevention for more info and tips.