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How to use pyrethrum in a sentence

Looking for sentences and phrases with the word pyrethrum? Here are some examples.

Sentence Examples
Pesticides that are approved for organic farming include copper, sulfur, petroleum distillates, and pyrethrum.
You can purchase concentrated pyrethrum from a nursery or the garden supply section of your supermarket.
You can treat them with pyrethrum, white oil, soapy water or just squash them with your fingers.
A natural pyrethrum insecticide is cheaper, less harmful and just as effective as those chemical poisons to kill spiders.
Others are synthetic versions of naturally-occurring insecticides, such as those found in the plant pyrethrum.
Daisy plants were first used centuries ago as a lice remedy in the Middle East, and this led to the discovery of pyrethrum insecticides.
It seems probable that in the future, synthetic pyrethroids will be of more interest than pyrethrum as possible delousing agents.
Geoff reckons to use a contact spray like pyrethrum which breaks down within about 24 hours.
The spray does not control the adults, so you can either handpick the adults or spray them with pyrethrum insecticide.
For body lice, use pyrethrum with piperonyl butoxide lotion over the whole body and wash off after 10 minutes.
By the mid 1800s, the heads of chrysanthemum flowers were used to obtain pyrethrum, and rotenone was extracted from the derris plant.
This is the area where significant cash crops are grown, including pyrethrum, coffee and tea.
These hatch out in moist potting mix and can be treated by immersing the pot and spraying the foliage in a solution of pyrethrum insecticide.
When I looked closely I could see the truck had a PyGanic label with the iconic pyrethrum flower on the side.
Rotenone and pyrethrum don't work, even if applied more frequently.
In some areas, extremely fertile soils produce coffee, tea, and pyrethrum.
Insecticides based on natural materials include pyrethrum, rotenone, fatty acids, plant and fish oils, plant extracts and mineral lattice.
Anticonvulsant and neuropharmacological studies of Anacyclus pyrethrum root extract.
After the extraction of pyrethrins, a total of 9 parts out of 10 parts are left in the powder form, which is known as pyrethrum marc.
The plant Anacyclus pyrethrum consists of several N-alkylamides with pellitorine as main constituent.
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Examples from Classical Literature
There are very few data at hand concerning the discovery of the insecticide properties of pyrethrum.
Still, to anyone with but a slight knowledge of hardy plants, it asserts itself at once as a pyrethrum.
After the cabbage has headed, it is very difficult to destroy the worm, but pyrethrum insect powder used freely is helpful.
Prof. Riley states that the insects are very readily destroyed by pyrethrum.
Previous experience with pyrethrum was not very satisfactory.
How anything can be gay with pyrethrum uliginosum I cannot imagine.
Sialagogues, as mercury internally, and pyrethrum externally.
After the plants begin to head, pyrethrum or salt water may be used.
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