While Surround WP (also sold as Surround at Home) is available to the home gardener through a variety of mail-order sources, it can be expensive. Andy Thomas, the research associate who ran the University of Missouri study, suggests looking into a local source, such as an orchard- or farm-supply store, to avoid shipping costs. Determining what level of damage you find acceptable and then experimenting with rates and frequency of application can also reduce costs. Trees coated with Surround do look a bit strange, but the dramatic reduction in plum curculio damage may be worth odd white trees.
Although Surround is a promising addition to an organic pest-control plan, it must be combined with sanitation and proper tree maintenance, cautions Thomas. "Surround is not a panacea; it is one of many tools an organic gardener needs. Weak trees are more susceptible to damage, so the bottom line is it's important to keep your trees healthy." *Surround can be sprayed on all fruit trees, including plum and pear.