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Pyrethrum


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Pyrethrum



Growing Information:

Pyrethrum

DAYS TO GERMINATION: 14-28 days

SOWING TIME: Spring

SEEDING METHOD: Transplant

SUNLIGHT PREFERENCE: Sun

PLANT HEIGHT: 24-30"

PLANT SPACING: 12-18"

HARDINESS ZONES: Zones 3-7

Habitat and Description


Growing Pyrethrum
CULTURAL REQUIREMENTS
  • Make certain that you are in zone 3 to 7. The warmer the climate, the more insect repellent the plant contains. Even in cold regions, however, it's a beautiful plant.
  • Prepare an area that receives full sun. Loosen the soil well. Pyrethrum can tolerate some shade, such as that provided by growing garden plants.
  • Choose how you will get your plants. Division in the spring or late fall is the easiest, but if you have no other plants available, sowing the seed is a viable possibility. Once a plant has grown, you can use division to increase your plant stock.
  • Sow seeds outdoors after there is no more danger of frost. The seeds should be at least 3" apart and a thin layer of fine soil covering them. Tamp the soil down firmly. Always remember the rule of thumb for planting--cover the seed with twice as much soil as its size. The pyrethrum germinates in 7 to 10 days.
  • Keep the area moist and composted. Thin the plants when they are two inches high. Transplant them to 12 to 18 inches apart.
  • Pinch the stem tips when they are about 6 inches tall to prevent legginess.


Pyrethrum


The benefits of Pyrethrum

Pyrethrum is the oldest insecticide known to man and well recognized for low mammalian toxicity and non-persistence in the environment. It rapidly knocks-down and kills a wide variety of insect pests such as cockroaches, mosquitoes, fleas, houseflies, etc.

Natural Pyrethrum possesses a unique combination of insecticidal properties which have made it the most useful allround insecticide available today.

These qualities include:

Safety:
It is one of the safest insecticides known, as it has a very low Mammalian toxicity, and is rapidly metabolised if accidentally swallowed by warm blooded animals.

Flushing action:
Disturbs insects so that they move out of their hiding places and expose themselves to the insecticidal spray. Pyrethrum has greater 'flushing' power than any other commercial insecticide.

Fast knockdown and kill:
Against insects, it has a very rapid paralytic action, knocking them down followed by kill.

Repellency:
Pyrethrum is repellent to insects at very low concentrations, a property used in the protection of stored grain, the preparations of insect resistant packaging, and in deterring mosquitoes, both by spray-on repellents and mosquito coils. In addition, the smoke from Pyrethrum-based mosquito coils will inhibit mosquitoes from biting.

Biodegradeable, non-pollutant:
Pyrethrum is rapidly degraded by sunlight into harmless breakdown products, but at the same time it can be safely stored for years in suitable containers.

Minimal insect resistance:
Despite its long history of use, very few cases of insects resistance to Pyrethrum have been discovered, and these have mainly arisen as a result of cross-tolerance conferred by the insects developing resistance to another insecticide. This is in strong contrast to synthetic insecticides where innumerable cases of resistance have been discovered throughout the world.

Broad spectrum of activity:
Pyrethrum is effective against a wide range of insect pests including mosquitoes, cockroaches, fleas, flies, aphids, etc. Thus a single can of a suitably formulated aerosol can be safely used against any insect found in the house or garden.





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