THE DEADLY DAISY

THIS HARMLESS-LOOKING FLOWER PACKS A PUNCH, WHICH IS WHY IT HAS BEEN USED FOR CENTURIES AS AN INSECTICIDE

Jennifer Stackhouse

Pyrethrum is a type of small daisy that is used to produce a natural insecticide also called pyrethrum, found in garden pesticides used to control aphids and other sap-sucking pests as well as caterpillars. It is also in fly sprays and is a contact spray. Although pyrethrum is a natural insecticide that’s not dangerous to humans or animals and is acceptable to organic gardening, it should be used with caution. As well as killing target pest species such as aphids or caterpillars, it can also kill beneficial insects such as bees. To avoid accidently killing other insects, apply pyrethrum insecticide in the early evening when bees and other beneficial insects have finished foraging for the day. It breaks down quickly in the environment so should be gone by the time the bees…

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Good Organic Gardening (Digital) - 1 Issue, Issue#9.5 - 2018

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