A tiny predatory mite, Phytosieulius, which feeds on the red spider mite, used mainly in greenhouses. Available from mid-April. Minimum temperatures must not fall below 10ºC at night & at least part of the day must be above 20ºC, but below 30ºC. Supplied directly from the producer. This pack is for treating high infestations or large greenhouses. Available April to October. Delivery from time of ordering usually takes between 1-2 weeks. PLEASE NOTE: DUE TO THE NATURE OF THIS PRODUCT, IT CAN BE DELIVERED TO UK MAINLAND ADDRESSES ONLY.