Defender™ Pyrethrum Insect Spray

Pyrethrum is the perfect pest control solution for your home-grown vegetables as well as the ornamental garden. The naturally derived insecticide will knock insects flat! It's the ideal product to ensure your vegetables and other edibles are pest-free.

  • Effective control of a broad range of common garden pests
  • Safe to use on edibles as well as ornamentals
  • Safe to use indoors and outside
  • Based on a natural extract of the pyrethrum daisy

Low toxicity

Pyrethrum is not a scheduled poison - it poses very minimal risk to humans, animals and birds. No protective gear required

Non-residual, non-systemic

Does not remain on, nor is it absorbed by, plants. It doesn't enter the food chain or accumulate in the environment. It is easily washed off.

Spray today, eat tomorrow

Wait just one day after spraying edibles with Pyrethrum before picking or eating. Rinse in fresh water after harvest to wash away any residue

Effective against ants

Pyrethrum is highly effective at stopping ants - it literally kills them in their tacks.


750ml Ready-to-Use trigger spray bottle
5L Ready-to-Use bottle with Comfort Wand battery-powered sprayer

Suitable for

Control of common insect pests including azalea lace bug, aphid, whitefly, scale, thrips, mealy bug and leafhopper on ornamental and edible plants in the garden or indoors

Not suitable for

Do not use on very young seedlings or very soft, new foliage (it may result in burning)

Do not spray directly on to humans, pets, exposed food, food utensils or food preparation areas

Do not spray if it is raining or about to rain, windy, unusually hot or if plants are wilting

How it works

The active ingredient in Pyrethrum works by killing insects that come into immediate contact with it.

How to use

Ready-to-use 750mL trigger pack

  • Shake the bottle well before use
  • Looking down on to the top of the bottle, depress the yellow tab in the centre of the nozzle with your thumb
  • Turn the nozzle through 90 degrees to the right for a misting spray, or 90 degrees to the left for a stream
  • Squeeze the trigger repeatedly to deliver the spray, making sure to thoroughly wet upper and lower leaf surfaces and stems
  • When finished, always return the nozzle to the OFF position (X on the nozzle)

Ready-to-use 5L Comfort Wand bottle

  • Shake the container well before use
  • Read instructions on how to connect Comfort Wand to container
  • Make sure sprayer is turned OFF after use to conserve batteries
  • Ensure the upper and lower leaf surfaces are thoroughly sprayed
Citrus Ants, Black Citrus Aphid (not TAS), Thrips Apply when infestations are first noticed, then at weekly intervals while insects are active.
Indoor and outdoor ornamental plants including roses and shrubs Ants, Aphids, Thrips, Caterpillars, Greenhouse Whitefly, Leafhoppers Shake well before use. Spray directly on to insects and surrounding foliage including the undersides of leaves
Vegetables Aphids, Budworm, Caterpillars, Thrips, Leafhoppers Hold the bottle 25cm from the plants and apply in a sweeping motion.

For a complete guide on how to use Defender Pyrethrum Insect Spray, always check the packaging

When to use

Any time insect pests are present and active on both ornamental and edible plants

Safety Information

Technical details

  • Defender Pyrethrum is based on a natural extract of pyrethrum daisies (Chrysanthemum spp) grown in Tasmania. It does not contain synthetic pyrethroids
  • The active ingredient is 0.3g/L pyrethrins
  • It also contains 1.2g/L piperonyl butoxide that stabilises the pyrethrum and enhances its effectiveness

Where to buy it

Decided what product best suits your needs? Or would you prefer to go in-store to ask for more information?

Visit your local Bunnings Warehouse for our largest range.

You can also find Scotts products in a number of gardening, hardware, independent and supermarket retailers including Flower Power, Mitre10, Coles and Woolworths.

Note: Not all brands and products are stocked in all stores. For any additional questions please visit our contact us page.

In New Zealand, go to your local Bunnings warehouse

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