Phytoseiulus | |
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Phytoseiulus persimilis on a piece of vermiculite | |
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Genus: | Phytoseiulus Evans, 1952
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Phytoseiulus is a genus of mites in the Phytoseiidae family.[1] A predatory mite, this is the mite predator most frequently used for biological control of two-spotted spider mites in greenhouses and outdoor crops grown in mild environments. This mite was accidentally introduced into Germany from Chile in 1958; it was subsequently shipped to other parts of the world, including California and Florida, from Germany. A Phytoseiulus mite can consume up to seven adult spider mites or several dozen of their eggs in a day. Adult females are reddish, pear-shaped, about 0.5 mm (0.020 in) long, and active at room temperature. Immatures and males are smaller and lighter in color. Eggs are oblong. About 80% are females. At optimum temperatures, Phytoseiidae can develop from egg to adult in seven days and live up to a month. A well-fed female lays about 50 eggs in her lifetime.