FIELD TESTING OF BIOLOGICALLY ACTIVE SUBSTANCES ON THE ENTOMOPHAGOUS TRICHOGRAMMA EVANESCENS WESTW
LIDIA GAVRILITA *, TUDOR NASTAS Institute Genetics, Physiology, and the Plant Protection of Republic of Moldova, ChiĆinÄu, e-mail: lidia_gavrilita@yahoo.com; tudor_nastas@mail.ru
* Corresponding authorâs
Field testing of Biologically Active Substances on the behavior of the entomophagous Trichogramma evanescens Westw. was conducted in two variants: In the first variant, where T. evanescens was released in the center of the plot, four plants were treated with a 30% concentration of kairomone extract of the cereal moth (optimal variant) for 5 minutes in the corners of the plot, and the percentage of cereal moth eggs parasitized varied from 18.43 to 31.0. In the second variant, where T. evanescens was released in the corners of the plot, four plants were treated with the kairomone extract of the cereal moth in the middle of the plot, and the percentage of cereal moth eggs parasitized varied from 11.65 to 27.50. In the control plot, plants were not treated with kairomone, but T. evanescens was released in the center of the plot (C1), where cards with moth eggs were fixed. The percentage of cereal moth eggs parasitized varied from 6.10 to 14.50 in the corners of the plot (C2), and the percentage of cereal moth eggs parasitized varied from 7.10 to 11.10.
