Phytoseiulus persimilis
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Technical sheet
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Targeted crops
- Cannabis
- Fruit trees:
- Orchard
- Hop
- Ornamental plants
- Small fruits:
- Blueberries
- Raspberries
- Strawberries, etc.)
- Vegetable crops:
- Cucumbers
- Peppers
- Tomatoes, etc.
Targeted pests
- Two-spotted spider mite (Tetranychus urticae)
Application Instructions
Gently shake the contents to homogenize the mixture, then sprinkle the P. persimilis and their substrate directly onto the leaves, targeting areas where infestation hotspots are visible. P. persimilis is highly dependent on the presence of spider mites to reproduce and survive. It is recommended to introduce P. persimilis as soon as the first signs of pests appear. On fields, the first introduction should occur after the last spring frost. Subsequent introductions should be made in the late afternoon when weather conditions are favorable. Avoid applications during heavy rains, extreme temperatures, or strong winds.
The introduction rates of P. persimilis range between 5 and 100 individuals per square meter, depending on the level of infestation and the specific needs of the crop.
Storage Instructions
- Use upon receipt.
- Do not refrigerate.
- Do not freeze.
Description
Phytoseiulus persimilis is a predatory mite native to Chile commonly used for the control of two-spotted spider mite (Tetranychus urticae) in fruit, ornamental, and vegetable crops. The adults feed on the eggs, juveniles, and adults of the pest. P. persimilis is highly mobile and demonstrates great dispersal capacity under the right environmental conditions. Unlike other predatory mites, it is capable of moving in the webs of two-spotted spider mites. It reproduces very quickly, which gives it an advantage when pest populations are high. The adult is pear-shaped with long legs and measures 0.5 mm in length. With its orange coloration, it is easy to spot. The immature stages are generally semi-transparent orange in color. The eggs are oval and measure 0.3 mm (twice the size of a two-spotted spider mite egg).
Although excellent for controlling moderate to high infestations of two-spotted spider mites, it can be used for pest detection, but does not provide as effective preventive control as Neoseiulus fallacis. For best results, Phytoseiulus persimilis can be used with the latter and with the predatory lady beetle, Stethorus punctillum.