Lk. Tanigoshi et al., SEARCH FOR, AND RELEASE OF, PARASITOIDS FOR THE BIOLOGICAL-CONTROL OFRUSSIAN WHEAT APHID IN WASHINGTON-STATE (USA), Agriculture, ecosystems & environment, 52(1), 1995, pp. 25-30
Parasitoids of Russian wheat aphid, Diuraphis noxia (Kurdjumov), from
Morocco, and the Middle East were imported, reared, and mass produced
for classical biological control use in Washington State. In total, mo
re than 200 000 parasitoids were released over 53 sites from 1988 to 1
992. Some species have established, but the long term effect of the pr
ogram has yet to be documented.