In a startling development, Australian authorities have issued a warning against consuming blueberries sold in supermarkets after tests revealed alarming levels of pesticide residues. The discovery has triggered nationwide concern and prompted immediate investigations.

1. Supermarket Blueberries Found with Hazardous Pesticides

Recent testing conducted by Professor Kirsten Benkendorff of Southern Cross University uncovered excessive residues of the insecticide dimethoate (a neurotoxin banned in the EU since 2019 and classified as a "probable human carcinogen" by the U.S. EPA) in randomly selected blueberry samples from NSW stores. Even more shockingly, methylthiophos—a chemical banned in Australia since 2001—was detected in organic blueberries, raising serious questions about contamination sources.

Lab results showed that some samples contained dimethoate levels so high that children could exceed daily safety limits by consuming just a handful of berries. This is compounded by potential exposure to the same pesticide from other produce.

2. Nationwide Investigations and Industry Response

Authorities are now tracing the origin of the contaminants. While initial industry-led tests (by FreshTest) of 14 samples claimed no violations, independent analyses confirmed persistent issues. Experts suggest pesticide drift from nearby farms or water contamination may explain the banned methylthiophos in organic products.

Australia’s Pesticides and Veterinary Medicines Authority (APVMA) acknowledged the findings but stated detected levels "are unlikely to pose an immediate health risk." Nonetheless, the agency is considering tightening regulations, including extending the mandatory post-spray harvesting wait period from 1–7 days to 14 days for berries.

3. Industry Reforms and Consumer Safety

The AUD 1.3 billion berry industry faces pressure to adopt stricter safety measures. While growers worry about increased costs, authorities emphasize that consumer health is paramount. Currently, only dimethoate-tainted products are under scrutiny; other approved pesticides are deemed safe.

Conclusion

This incident highlights critical gaps in Australia’s pesticide monitoring system, which still relies on 30-year-old consumption data to set residue limits. Consumers are urged to stay updated as investigations continue. Ensuring food safety remains a non-negotiable priority for all Australians.