pyrethrin
1
7.5
- noun
- /paɪˈrɛθrɪn/
- Specialized
:
pirétrina
- The environmentally safe insecticide, pyrethrin, was used in the tests only if the farmer felt that the flies were getting ahead of the other controls.
- pyrethrin, a botanical insecticide
- pyrethrin products
- natural pyrethrins
Because while the BT doesn't hurt honey bees, the pyrethrin may.
- Because while the BT doesn't hurt honey bees, the pyrethrin may.
- So I love pyrethrin and then I also use neem oil.
Examples
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To control pests in your garden, you can apply pyrethrin to the plants.
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So I love pyrethrin and then I also use neem oil.
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I'll be using your chlorpyrifos and pyrethrin in a high pressure injection system.
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Because while the BT doesn't hurt honey bees, the pyrethrin may.
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We sprayed them with pyrethrins and they seem to have handled it really well.
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I paid $900.00 to have the POD dusted with pyrethrins.
Blog text (3) -
Pyrethroids are pyrethrin-like materials synthesized by chemists, whose action is generally improved in some way (such as photostability) over that of natural pyrethrins.
Academic text (1998) -
Pyrethroids are pyrethrin-like materials synthesized by chemists, whose action is generally improved in some way (such as photostability) over that of natural pyrethrins.
Academic text (1998) -
Head lice can usually be treated with products that contain pyrethrin, such as Nix and Rid.
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Many insect sprays utilize pyrethrin, derived from chrysanthemum flowers, as their active ingredient.
Surface Forms
Morphology
Etymology
Pyrethrin comes from the plant name pyrethrum, a kind of chrysanthemum, and that plant name goes back to a Greek root pyr meaning 'fire' or 'fever'. A helpful image is that the flower gave a strong, almost 'hot' sting, so pyrethrin is the natural chemical from that flower that quickly stuns and kills insects.