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2. Pesticide toxicity to bees - Wikipedia

   en.wikipedia.org/wiki/Pesticide_toxicity_to_bees

   Of contact pesticides, dust and wettable powder pesticides tend to be more hazardous to bees than solutions or emulsifiable concentrates. When a bee comes in contact with pesticides while foraging, the bee may die immediately without returning to the hive. In this case, the queen bee, brood, and nurse bees are not contaminated and the colony ...

3. Pyrethrin - Wikipedia

   en.wikipedia.org/wiki/Pyrethrin

   Bees have been shown to be particularly sensitive to pyrethrin, with fatal doses as small as 0.02 micrograms. [1] Due to this sensitivity and pollinator decline, pyrethrins are recommended to be applied at night to avoid typical pollinating hours, and in liquid rather than dust form. [38]

4. Bifenthrin - Wikipedia

   en.wikipedia.org/wiki/Bifenthrin

   Bees In bees, the lethal concentration ( LC 50 ) of bifenthrin is about 17 mg/L. [ 11 ] At sublethal concentrations, bifenthrin reduces the fecundity of bees, decreases the rate at which bee larvae develop into adults, and increases their immature periods.

5. Pyrethrum - Wikipedia

   en.wikipedia.org/wiki/Pyrethrum

   The risk of killing bees and other beneficial insects is partially reduced by the compound's rapid breakdown (a half-life of approximately 12 hours on plants and on the surface of the soil, with about 3% remaining after five days, but persisting several weeks or more if it enters a body of water or is dug into the soil) and its slight insect ...

6. Bees and toxic chemicals - Wikipedia

   en.wikipedia.org/wiki/Bees_and_toxic_chemicals

   In sufficient quantities, such chemicals can poison and even kill the bee. The effects of alcohol on bees have long been recognized. For example, John Cumming described the effect in an 1864 publication on beekeeping. [1] When bees become intoxicated from ethanol consumption or poisoned with other chemicals, their balance is affected.

7. Invasive yellow-legged hornet queen captured in Jasper ... - AOL

   www.aol.com/invasive-yellow-legged-hornet-queen...

   How they kill honey bees. Drew Martin. April 4, 2024 at 6:00 AM. The honey bee killer the yellow-legged hornet (Vespa velutina) has now been found a second time in South Carolina.

8. Deltamethrin - Wikipedia

   en.wikipedia.org/wiki/Deltamethrin

   Deltamethrin is a pyrethroid composed of a single stereoisomer, of a possible 8 stereoisomers, selectively prepared by the esterification of (1R,3R)- or cis-2,2-dimethyl-3-(2,2-dibromovinyl)cyclopropanecarboxylic acid with (alpha,S)- or (+)-alpha-cyano-3-phenoxybenzyl alcohol or by selective recrystallization of the racemic esters obtained by esterification of the (1R,3R)- or cis-acid with the ...

9. Thousands of bees kill landscaper in Arizona - AOL

   www.aol.com/news/2014-10-09-thousands-of-bees...

   A massive swarm of Africanized bees killed a man doing landscaping work in southern Arizona Wednesday, and sent others to the hospital. The attack happened in Douglas, Arizona, when landscapers ...