This unique form of incense makes use of a natural plant compound called pyrethrum which is derived from Old World plants of the genus.    From Wordnik.com.  [WN.com - Business News] Reference

Plant-derived and metallic insecticides such as pyrethrum, lead arsenate and copper sulfate had been tried but did not work well.    From Wordnik.com.  [WN.com - Articles related to Banana expo throws light on latest cultivation techniques] Reference

I had to go back to K-Mart and get some pyrethrum spray.    From Wordnik.com.  [Archive 2008-03-01] Reference

We were also among the world leaders in pyrethrum research.    From Wordnik.com.  [Generation Kenya] Reference

Previous experience with pyrethrum was not very satisfactory.    From Wordnik.com.  [Insects and Diseases A Popular Account of the Way in Which Insects may Spread or Cause some of our Common Diseases] Reference

The neem-pyrethrum formulation is aimed at flower production.    From Wordnik.com.  [4. Case studies of small-scale semi-industrial neem processing in Kenya, Thailand, the Dominican Republic and Nicaragua] Reference

It is perfectly hardy, blossoms for years, the hardy pyrethrum.    From Wordnik.com.  [Trees, Fruits and Flowers of Minnesota, 1916 Embracing the Transactions of the Minnesota State Horticultural Society,Volume 44, from December 1, 1915, to December 1, 1916, Including the Twelve Numbers of "The Minnesota Horticulturist" for 1916] Reference

To clean the room where there are many flies, burn pyrethrum powder.    From Wordnik.com.  [The Eugenic Marriage, Volume IV. (of IV.) A Personal Guide to the New Science of Better Living and Better Babies] Reference

II, when supplies of pyrethrum were rapidly falling short of demand.    From Wordnik.com.  [Paul Müller - Biography] Reference

Use encapsulated pyrethrum time-release insecticide for pest control.    From Wordnik.com.  [10 quick tips to keep your orchids looking gorgeous] Reference

Prof. Riley states that the insects are very readily destroyed by pyrethrum.    From Wordnik.com.  [Scientific American Supplement, No. 803, May 23, 1891] Reference

This product uses pyrethrum as the active ingredient and will kill mosquitoes quickly.    From Wordnik.com.  [Archive 2005-10-01] Reference

Since the 1960s pyrethrum production has been established in the New Guinea highlands also.    From Wordnik.com.  [10 Next Steps] Reference

The British settler her father worked for was furious: who was going to pick his pyrethrum?.    From Wordnik.com.  [Johann Hari: The Savior of Africa - and the Environment? An Interview With Nobel Prize-winner Wangari Maathai] Reference

Mosquitoes seem to be getting used to pyrethrum, the insecticide used to impregnate bed nets.    From Wordnik.com.  [Scourge of Humankind] Reference

There are very few data at hand concerning the discovery of the insecticide properties of pyrethrum.    From Wordnik.com.  [Scientific American Supplement, No. 299, September 24, 1881] Reference

Last century, Dalmatia (Yugoslavia) became the center of the world's pyrethrum industry, but after World War I.    From Wordnik.com.  [10 Next Steps] Reference

At the present time the pyrethrum flowers are considered by far the most valuable product of the soil of Dalmatia.    From Wordnik.com.  [Scientific American Supplement, No. 299, September 24, 1881] Reference

If the dry pyrethrum powder is blown from a bellows into a tightly closed room, it is said to destroy all the flies.    From Wordnik.com.  [Checking the Waste A Study in Conservation] Reference

Since World War II and up to the mid-1990s, Kenya was the source of more than 70 percent of the world's pyrethrum supply.    From Wordnik.com.  [Generation Kenya] Reference

Actually, come to think of it, dishsoap may be better because pyrethrum will kill ALL insects including the beneficial ones.    From Wordnik.com.  [rad·ish] Reference

On the brazier he boiled up the dried purple flowers of the pyrethrum plant and washed her down from head to toe in the brew.    From Wordnik.com.  [Warlock]

I got some garlic and pyrethrum spray from the organic shop - seems to be OK - but the dish soap sounds much better - cheaper too!.    From Wordnik.com.  [rad·ish] Reference

The company is working on the formulation of new neem-based products: an alcoholic extract and a formulation containing 20% pyrethrum.    From Wordnik.com.  [4. Case studies of small-scale semi-industrial neem processing in Kenya, Thailand, the Dominican Republic and Nicaragua] Reference

I am very much interested in the pyrethrum project in Kenya.    From Wordnik.com.  [NextBillion.net - Development Through Enterprise - Eradicating Poverty through Profit] Reference

Sialagogues, as mercury internally, and pyrethrum externally.    From Wordnik.com.  [Zoonomia, Vol. II Or, the Laws of Organic Life] Reference

Lettuce is good used as a border and pyrethrum, planted alongside, serves well as.    From Wordnik.com.  [promptings] Reference

After the plants begin to head, pyrethrum, kerosene emulsion, or salt water may be used.    From Wordnik.com.  [Manual of Gardening (Second Edition)] Reference

A combination of rotenone and pyrethrum and Sevin (carbaryl) are labeled to control the beetles.    From Wordnik.com.  [post-gazette.com - News] Reference

The insecticide pyrethrum used in the fogging operation is made from an extract of chrysanthemum flower.    From Wordnik.com.  [The Hindu - Front Page] Reference

Should worms cause trouble, dust the plants with a mixture of one part of pyrethrum powder to six of fine dust.    From Wordnik.com.  [Manual of Gardening (Second Edition)] Reference

The cabbage-worm (larva of the white butterfly shown in Fig. 295) can be dispatched with pyrethrum or kerosene emulsion.    From Wordnik.com.  [Manual of Gardening (Second Edition)] Reference

Thus mercury internally promotes an increased salivation, and pyrethrum externally applied to the excretory ducts of the salival glands.    From Wordnik.com.  [Zoonomia, Vol. II Or, the Laws of Organic Life] Reference