Biological control is currently being used in 100 ha of tunnel‐grown strawberry in northern Italy. Second‐instar larvae of Chrysoperla carnea are released (18 larvae per m2) against aphids when more than 30% of leaflets are infested. Releases of Phytoseiulus persimilis (4–6 predatory mites per m2) are also being used in IPM strategies against Tetranychus urticae; wild P. persimilis populations also occur in the test area, which is near the Adriatic coast. Releases of predators are also successful in the field.
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