Experiments were carried out at Vegetable Research and Development Station Bacau during 2008 – 2010. Four species of pests were caught in 2008 with variant of pheromone trap Var. 2009: Mamestra brassicae L., Discestra trifolii H., Autographa gamma L. and Agrotis spp. Most of the captures belonged to diamondback moth specie, in variant V1 - Mb – 2008 – 1.5 males/trap.
The flight of pests started in the second part of May, the maximum of curve being registered in the third decade of this month. At the beginning of June the male flight finished, the diamondback moth was still present in cabbage crops but only in larva stage. In 2009 the population of diamondback moth was under Economical Damage Level (EDTA). In 2010 the flight started in the third decade of May and finished in early June. Two noctuide species were caught: Mamestra brassicae L. and Discestra trifolii H. Most of the catches belonged to diamondback moth specie.
The results obtained demonstrate the good efficacy of the new synthesized pheromone variants - Var. 2009. | 
