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www.goodfruit.com GOOD FRUIT GROWER MARCH 1, 2015 15 Introducing Madex HP for control of codling moth and oriental fruit moth larvae. Now you have a selection of highly eff ective granuloviruses. So potent they can be used at ultra-low rates for cost-eff ective control. Ideal for managing insecticide resistance and residues. Four-hour reentry interval (REI) and zero plant harvest interval (PHI). OMRI ® Listed and NOP Approved. Double Trouble for Codling and Oriental Fruit Moths. CYD-X ® HP and ma - dex ® hp The most potent codling moth and oriental fruit moth viruses...ever. © 2015 Certis USA ] [ © 2015 Certis USA 1-800-250-5024 • www.CertisUSA.com population level after six months, and the use of these commercial strains would require an annual application. It may be that the native New York strains are more tolerant of cold weather. They are quite active in early spring, when soils are still cold and the curculio adults are emerging to lay eggs. In testing, the entomologists selected a young Idared apple planting, an established block of Empire apples, and an organic planting of mixed varieties, all located at a Cornell research farm in Geneva and a commercial orchard in Geneva as establishment sites for long-term entomopathogenic nematode populations. Testing began in 2012. They are also working on three Hudson Valley growers' farms with Peter Jentsch, a colleague at Cornell's Hudson Valley Research Lab in Highland. The nematodes were reared in a lab colony using wax moth larvae as hosts, which were brought to the field, dissolved and mixed in water in the spray tank, and applied May 30 shortly before sunset in order to avoid excessive sun or heat exposure. In the short run, Agnello said, fruit growers could get some relief from plum curculio working with the nematodes, since orchards are long-lived and often replanted. Once the land is treated and the nematodes spread, biological control should be ongoing. On the other hand, plum curculio also live outside orchards, and they invade to lay eggs in the fruit. The nematodes spread slowly but could, ultimately, become widespread in the environment, even outside orchards, reduc- ing the impact of plum curculio and other problem insects, like Japanese beetles, as well. • PHOTOS COURTESY OF ART AGNELLO $WWRS(OVRQ6KLHOGV³FUHZ¼OOVWKHWDQN SUHSDULQJWRVSUD\6KLHOGVLVRQWKH left, Tony Testa in the middle, and John Cianchetti on the right. Below, Cianchetti XVHVDQ$79PRXQWHGVSUD\HUWRDSSO\WKH QHPDWRGHFRQWDLQLQJVROXWLRQ