Amblyseius (Neoseiulus) californicus is an active predatory mite which has specialised in feeding on mites in the family Tetranychidae. This includes the common Red Spider Mite or Two-Spot Mite Tetranychus urticae, and the Carmine Mite Tetranychus cinnabarinus. It is less specialised than Phytoseiulus persimilis, and while it prefers to feed on spider mites and cannot breed successfully without them, it can feed on other arthropod prey or pollen. Where few spider mites are present, it is able to survive by feeding on these alternative sources of food.
Amblyseius californicus can be used in any situation in which Phytoseiulus persimilis would be used. It is normally recommended for use in conjunction with P. persimilis, or in areas of the crop where P. persimilis has previously failed because of hot dry conditions.
Where spider mite infestation is low, a rate of 25/m² applied over two weeks should be sufficient. On identified colonies or larger areas of infestation apply at a higher rate to gain control, or use a compatible acaricide to reduce spider mite populations.
Consider topping with Mitefood for a fast and efficient installation of the predators.