A Research on Selection of the Most Effective Species or Strains of 7 Trichogrammafor Biological Control Against Ostrinia nubilalisHübner

Authors : Ali ÖZPINAR

Pages : 83-86

View : 15 | Download : 9

Publication Date : 1999-01-01

Article Type : Research Paper

Abstract :This study, was carried out to determine the most effective species or strains among Trichogramma evanescensWestwood insert ignore into journalissuearticles values(from Sakarya-Turkey);, T. evanescensWestwood insert ignore into journalissuearticles values(from Adana-Turkey);, T. evanescensWestwood insert ignore into journalissuearticles values(from Moldavia);, T. ostriniaePang et Chen insert ignore into journalissuearticles values(from China);, T. evanescens Westwood insert ignore into journalissuearticles values(from Darmstadt-Germany);, T. brassicae Bezdenko insert ignore into journalissuearticles values(from Aydin-Turkey); and T. maidis Pintureau & Voegele insert ignore into journalissuearticles values(from France);, which were investigated or used for biological control against O. nubilalis in different countries. A single female was offered choice between 2x40 eggs of O. nubilalis and 2x50 eggs of Sitotroga cerealella insert ignore into journalissuearticles values(Olivier);, sticked on the corner of a white paper insert ignore into journalissuearticles values(2x2 cm); with one honey drop in the tubes. Observations after releasing were made to study the behavoir of parasitoids on the host eggs for every 30 minutes during 4 hours. All Trichogramma strains were accepted eggs of the O. nubilalis and S. cerealella. The ratio of the contact of T. evanescens insert ignore into journalissuearticles values(from Sakarya-Turkey);, T. evanescensinsert ignore into journalissuearticles values(from Adana-Turkey);, T. evanescensinsert ignore into journalissuearticles values(from Moldavia); and T. ostriniae on the O. nubilalis eggs were 62.50, 61.35, 58.83 and 56.00%, respectively. But, the average number of the parasitized eggs per female of T. ostriniaeinsert ignore into journalissuearticles values(13.80); was higher than the others. As a result, the most effective candidade for biological control of O. nubilalis was T. ostrinae and T. evanescensinsert ignore into journalissuearticles values(from Adana-Turkey); in laboratory.
Keywords : Turk J Agric For, 23, 1999, 83 86 Turk J Agric For, vol 23, iss 1