The release of predatory bugs Orius laevigatus and Orius strigicollis (Heteroptera: Anthocoridae) against Frankliniella occidentalis on santpaulias in the Peter the Great Botanical Garden
Keywords:
biocontrol, biological efficiency, predatory anthocorids, botanical garden, saintpauliasAbstract
The predatory anthocorids Orius laevigatus and O. strigicollis were released against the Western flower thrips on Saintpaulia spp. in a greenhouse. In the winter-spring period, the thrips population decreased to 0.1 thrips per flower, and the biological efficiency was 94 and 96 % when O. laevigatus and O. strigicollis were used, respectively. In the summer, the thrips population decreased to 0.1±0.07 and 0.04±0.04 thrips per flower, and the biological efficiency was 95 % and 98 %. The efficiency depended on the season: bugs were more voracious in the summer, when the temperature was higher, which is confirmed by the observations of other researchers.