Molecular-genetics study of entomophages of the genus Trichogramma Westw

Studies of the genetic structure of the internal noncoding transcribed spacer region 2 (ITS2) of the ribosomal DNA of five entomophage species of the genus Trichogramma , i.e., T. pintoi Voeg., T. evanescens Westw., T. dendrolimi Mats., T. cacoeciae Meyer, and T. semblidis Auriv., are performed. A PCR analysis with subsequent determination of the nucleotide sequence of the ITS2 regions made it possible to identify essential inter-species differences. The data may be used for the identification of the species T. pintoi, T. dendrolini , and T. semblidis .