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One new Chinese record species of Ichneumonidae,Lamachus gilpiniae Uchida,1955,reared from Diprion jingyuanensis Xiao et Zhang in… Expand Laboratory studies showed that ♀♀ ofTrichogramma embryophagum (Hartig) andT. semblidis (Aurivillius) when offered an alternative… Expand Some recent results from a research program dealing with the isolation, identification, and synthesis of biologically active… Expand Diprion jinngyuanensis, new species identified in 1994,is a major forest pest to damage the Chinese pine. Study was made in this… Expand Abstract Structures sometimes formed from cells in the midgut of the spruce sawfly, Diprion hercyniae, and previously referred to… Expand Abstract The potential of the meconium of the introduced pine sawfly, Diprion similis, as a medium for the maintenance and… Expand 1. Bei zwei Diprion-Arten, Diprion pini und Neodiprion sertifer, kommt es in den Kiefernwaldungen Weisruslands haufiger zu… Expand IN the autumn of 1930, serious defoliation of some 2,000 square miles of spruce forest by a species of sawfly was discovered in… Expand