Evaluation of the effectiveness of a number of modern insecticides against some herbivorous invasive phytophagous pests
Year: 2024
Type: article
Abstract: The studies were conducted to determine the effectiveness of a number of modern insecticidal preparations against herbivorous invasive pests. The work was carried out in 2020-2023 in laboratory conditions using standard methods. The objects of the studies were the imago of the American omnivorous Metcalfe’s leafhopper ( Metcalfa pruinosa Say) (Flatidae), the oriental moth ( Haritalodes basipunctalis Bremer.) (Crambidae), the brown marmorated stink bug ( Halyomorpha halys Stal.) (Pentatomidae), and caterpillars of the 1 st -2 nd and 3 rd -4 th instars of the American white moth ( Hyphantria cunea Drury) (Arctiinae), collected as a result of route phytosanitary surveys in the Lazarevsky district of Sochi. The least toxic to the tested invasive pests were preparations of the chemical class of pyrethroids. The best results in biological effectiveness (100%) were demonstrated by the pyrethroid preparation Sharpei, in relation to the American herbivorous leafhopper. The effectiveness of the other preparations during tests on the brown marmorated stink bug was medium (the death of harmful stages of the pest development was 53.3%). The highest effectiveness in laboratory experiments against the brown marmorated stink bug were two-component preparations, the active substances of which, along with pyrethroids, included organophosphorus compounds (Kinfos, 77.5%) and neonicotinoids (Espero, 90%). Among the neonicotinoids, the highest toxicity for the tested invasive pests was demonstrated by insecticides based on imidacloprid (Confidor, Imidor, Espero, Biotlin) ‒ on average 90.1%. Low toxicity was demonstrated by preparations of this class with the active ingredients thiamethoxane (efficiency 61.2%), acetamiprid (55.2%), diflubenzuron + imidacloprid (67.5%), as well as a preparation of the pyrethroid class with the active ingredient esfenvalerate (53.3%). Insecticides that showed the greatest efficiency in laboratory conditions are recommended for industrial testing.
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: hybrid
OpenAlex ID: W7203734702