Amblyseius californicus - Loose Predators - Spider Mite Curative System


Amblyseius californicus is an effective predator of two spotted mite (Tetranychus urticae) commonly known as red spider mite.

These californicus predators come in a loose carrier material for instant release onto infestations. If spider mite is present in large numbers (signs of leaf damage and webbing) we advise application of loose Californicus and Phytoseiulus persimilis predators to tackle the infestation.

Severe spider mite infestations may need more than one curative application of predators. Allow 7-10 days and reapply if spider mite is still visibly present.  

Please ensure you have read the appropriate conditions for using Californicus before purchase, these can be found below.

When Should I use loose Californicus?

We advise using loose Californicus when spider mite is already present on the plant. This releases a large number of active predators straight away to bring infestations under control. DO NOT apply if you have used chemical treatments in the past 2 weeks. 

What conditions does Californicus need?

Temperatures should be between 10-35 degrees and ideally a relative humidity above 60% however lower levels can be endured by Californicus.

How much Californicus do I need?

Based on an average plant 1m in height. We recommend the following application rate;

200 Californicus per plant

How do I apply?

Spider mite often feed at the top of plants, so ensure predators are released in this area or in hot spots of activity. Supplied in shaker bottles you can apply the predators by rotating the bottle and gently shaking the contents directly onto the infested leaves of the plants. Californicus can also be applied using distribution boxes which act as small breeding sites for the predators and can be hung onto stems or leaves. Full instructions are provided on delivery.

Chemical Pesticides

Californicus is a living creature and can be affected by any chemical pesticides used within the previous few weeks. As a guide cease using pyrethrum or SB plant invigorator 2 days prior to use and other persistent chemicals or universal bug killers 1-2 weeks before using Californicus.

Can I store Californicus?

We advise using Californicus straight away upon delivery, this ensures best results as the mites will be fresh.


Warning; Amblyseius californicus is a non native predator and can only be applied indoors and in glasshouses. By purchasing this product you are agreeing to these restrictions.