Photo by Anna Luczynski
Target pest: Two-spotted spider mite
P. persimilis is one of the oldest beneficials in use. It was originally used in the 1930’s. It is still one of the best beneficial insects, capable of complete eradication of prey. The granular product is not as effective as the leaf product “Persimilis Max”, but is the only option if you are unwilling to use a product that has Spider Mites provided with it. Our persimilis is greenhouse reared, allowing selection for greenhouse conditions.
The granular product will feed on Spider Mite hot spots faster than the leaf product, because the persimilis are starving, but control will be delayed by at least 1 week, as the sex ratio needs to become balanced before the population can grow exponentially.
For more detailed release rates and general information, please see: