Health
Non-insecticidal pesticides change insect behavior
While the prospect of fewer mosquitoes flying around may be convincing, insects play a vital role in maintaining our ecosystems and supporting agriculture. The use of pesticides is widespread implicated in declining populations of beneficial insectsbut a new study has been published science suggests that hundreds of non-insecticidal pesticides may also have negative effects on insect populations (2024, DOI: 10.1126/science.ado0251).
Justin CrockerThe paper's senior author and evolutionary and developmental biologist at the European Molecular Biology Laboratory (EMBL) is part of a research team investigating how more than 1,000 pesticides affect insect behavior. led. the team revealed Drosophila melanogasterthe common Drosophila melanogaster and model organism for genetics, has been exposed to insecticides, fungicides, herbicides, and other chemicals to improve its behavior, including crawling, egg-laying, and altered developmental patterns. I looked into the changes. “The big thrust for us here was actually to look at the sublethal effects of these chemicals on behavior,” Crocker says.
The results of the study were very surprising to Crocker, he says, because more than half of the chemicals changed behavioral patterns. “And if you heat these systems just a few degrees, that effect will be amplified even more.”Chemicals like the fungicide dodine and the common herbicide glyphosate caught Crocker's attention. had a significant effect on fly behavior. But fruit flies are not broadly representative of all insects, so the researchers also tested a subset of chemicals in their study on mosquitoes and butterflies to validate their results.
leslie reeseGeorgetown University butterfly researcher and global change biologist, who was not involved in the study, said he was impressed by the scale of the study and said the data was “why the field, even if it has no impact.” “This suggests that there may be a decline in the number of It is deadly to individual insects. ”
Crocker sees a silver lining in all this research. “Probably most of the compounds change behavior, but some seem to be OK,” he said, referring to chemicals that did not change insect behavior. This means further research could help us know which chemicals are safe for insects for agricultural use. “I don't want this situation to be all doom and gloom,” he says.
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Sources 2/ https://cen.acs.org/food/agriculture/Noninsecticidal-agrochemicals-alter-insect-behavior/102/i34 The mention sources can contact us to remove/changing this article |
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