• Scientists at Rothamsted Research and ApresLabs Ltd have demonstrated that SYN-A, a naturally derived synergist extracted from olive oil, can restore the effectiveness of pyrethroid insecticides against CSFB, the most devastating autumn pest of oilseed rape.In simulated field experiments, plants sprayed with a mixture of SYN-A and lambda-cyhalothrin increased cabbage stem flea beetle (CSFB) mortality from 20% to 75% and reduced plant damage by at least 50% compared to lambda-cyhalothrin applications alone.
Article Summaries:
- Scientists from Rothamsted Research and ApresLabs Ltd have shown that SYN‑A, a natural synergist extracted from olive oil, can restore the efficacy of pyrethroid insecticides against the cabbage stem flea beetle (CSFB), a major autumn pest of oilseed rape. In simulated field trials, crops treated with a blend of SYN‑A and the pyrethroid lambda‑cyhalothrin achieved beetle mortality of 75 %-up from 20 % with lambda‑cyhalothrin alone-and cut plant damage by at least 50 %. The findings suggest that SYN‑A could help manage insecticide‑resistant CSFB populations and reduce the need for higher insecticide doses.
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