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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. Black Flag (insecticide) - Wikipedia

   en.wikipedia.org/wiki/Black_Flag_(insecticide)

   Black Flag is the oldest insecticide brand in the United States.Established in 1833, [1] [2] [3] [4] Black Flag makes a variety of products designed for killing and ...

4. Bees and toxic chemicals - Wikipedia

   en.wikipedia.org/wiki/Bees_and_toxic_chemicals

   A male Xylocopa virginica (Eastern Carpenter bee) on Redbud (Cercis canadensis). Bees can suffer serious effects from toxic chemicals in their environments. These include various synthetic chemicals, particularly insecticides, as well as a variety of naturally occurring chemicals from plants, such as ethanol resulting from the fermentation of organic materials.

5. Raid (insecticide) - Wikipedia

   en.wikipedia.org/wiki/Raid_(insecticide)

   Raid is the brand name of a line of insecticide products produced by S. C. Johnson & Son, first launched in 1956. The initial active ingredient was allethrin, the first synthetic pyrethroid. [1] Raid derivatives aimed at particular invertebrate species can contain other active agents such as the more toxic cyfluthrin which is also a pyrethroid. [2]

6. 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 ...

7. 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]