Eretmocerous californicus (= E. eremicus) is a parasitic wasp targeting Bemesia tabaci, silverleaf, woolly, citrus, bayberry, and to a lesser extent, GHWF. Eretmocerus should be introduced as soon the first whiteflies are observed or as a preventive. Minimum effective temperatures: 50° F night and 65° F day. Useful at higher temperatures with optimal conditions > 75° F. Female adult wasps parasitize the 2nd and 3rd instar larval stages of the whitefly (on underside of leaf) and also host feed. Parasitized whitefly scale will turn yellow, rather than black. Supplied as loose parasitized whitefly scale in a bran carrier.

0.5-20 wasps per 10 sq ft.

Shipped Tuesday, order by previous Wednesday.