Pyrethrum is a 9 letter English word. It's valid Words with friends word worth 20 points.
You can make 239 anagrams from letters in Pyrethrum (ehmprrtuy).
1555-65; Latin: pellitory Greek pýrethron, akin to pyretós fever; compare pellitory
Still, to anyone with but a slight knowledge of hardy plants, it asserts itself at once as a pyrethrum.
Sialagogues, as mercury internally, and pyrethrum externally.
After the plants begin to head, pyrethrum or salt water may be used.
How anything can be gay with pyrethrum uliginosum I cannot imagine.
pyrethrum is used as a spray, mixing one ounce to two gallons of water, to destroy cabbage-worms and many other garden insects.
In the Feverfew (pyrethrum), the receptacle is elevated, and the fruit is crowned with a narrow membrane.
pyrethrum or buhach may be used in similar manner, and kerosene emulsion has been highly recommended by some experimenters.
Prof. Riley states that the insects are very readily destroyed by pyrethrum.
After the cabbage has headed, it is very difficult to destroy the worm, but pyrethrum insect powder used freely is helpful.
Previous experience with pyrethrum was not very satisfactory.