Editing Insecticide (section)

=== Insect decline ===

Both number of insects and number of insect species have [[Insect decline|declined dramatically]] and continuously over past decades, causing much concern.<ref>{{Cite journal |last=Wagner |first=David L. |date=14 October 2019 |title=Insect Declines in the Anthropocene |journal=Annu. Rev. Entomol. |volume=65 |pages=457–480|doi=10.1146/annurev-ento-011019-025151 |doi-access=free |pmid=31610138 }}</ref><ref>{{Cite journal |last1=Sánchez-Bayo |first1=Francisco |last2=Wyckhuys |first2=Kris A.G. |date=2019 |title=Worldwide decline of the entomofauna: A review of its drivers |url=https://doi.org/10.1016/j.biocon.2019.01.020 |journal=Biol. Conserv. |volume=232 |issue=April |pages=8–27 |doi=10.1016/j.biocon.2019.01.020 |bibcode=2019BCons.232....8S |via=Elsevier Science Direct}}</ref><ref>{{Cite journal |last=van der Sluijs |first=Jeroen. P. |date=October 2020 |title=Insect decline, an emerging global environmental risk |url=https://doi.org/10.1016/j.cosust.2020.08.012 |journal=Curr. Opin. Environ. Sustain. |volume=46 |issue=October |pages=39–42 |doi=10.1016/j.cosust.2020.08.012 |bibcode=2020COES...46...39V |via=Elsevier Science Direct|hdl=11250/2764289 |hdl-access=free }}</ref> Many causes are proposed to contribute to this decline, the most agreed upon are [[Habitat destruction|loss of habitat]], intensification of farming practices, and insecticide usage. [[Honey bee|Domestic bees]] were [[Pollinator decline|declining]] some years ago<ref name="Oldroyd">{{cite journal |last=Oldroyd |first=B.P. |year=2007 |title=What's Killing American Honey Bees? |journal=PLOS Biology |volume=5 |issue=6 |pages=e168 |doi=10.1371/journal.pbio.0050168 |pmc=1892840 |pmid=17564497 |doi-access=free}}</ref> but population and number of colonies have now risen both in the USA<ref>{{Cite web |title=Table 21. Colonies of Honey Bees - Inventory and Honey Sales: 2022 and 2017. |url=https://www.nass.usda.gov/Publications/AgCensus/2022/Full_Report/Volume_1,_Chapter_2_US_State_Level/st99_2_021_021.pdf |access-date=12 November 2024 |website=USDA National Agricultural Statistics Service Census of Agriculture}}</ref> and worldwide.<ref>{{Cite web |date=2 March 2023 |title=Bee colonies: Worldwide population on the rise |url=https://www.destatis.de/EN/Themes/Countries-Regions/International-Statistics/Data-Topic/AgricultureForestryFisheries/Bees.html |access-date=12 November 2023 |website=Federal Statistical Office of Germany}}</ref> Wild species of bees are still declining.