The walnut aphid, Chromaphis juglandicola is a pest known in California for more than 100 years. The introduction of the parasitic wasp Trioxys pallidus from Iran in 1969 led to a dramatic success in the biological control of walnut aphid populations in California, and has provided sustained control of this devastating pest for the past 39 years. However, in recent years we have seen renewed ou...

summary) Apples: Both SOFT and CONV treatment regimes were able to maintain injury from codling moth (CM) at a very low level across the AWII project, even in the face of increasing CM pressure throughout most of the growing areas of Washington state. CM pressure varied in the AWII project from low-moderate in most blocks to high at two of the orchards (A3 and A5). On average, there was no real...