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White oil spray

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Leonie Shanahan explains how to make white oil spray.

White Oil spray 
Use for sap sucking insects, mealy bug, aphids, two-spotted mite, citrus leaf miner, whitefly and scale. Apply to woody plants. The pests are suffocated by the spray.  Neem is an alternative organic spray that is also used for these pests.

In a bottle mix 1/2 cup dishwashing detergent with 1 cup cooking oil (check the oil is not GM). Seal the bottle and shake until white. This is your concentrate.  

To use, dilute 1 tbsp of spray in 1 litre water. Spray over the affect areas. Apply every 3 weeks until the problem is fixed   Don’t use if temperatures will be over 30ºC  or if it’s windy. Best sprayed on an overcast day.


For more gardening tips and ideas get the latest issue of ABC Organic Gardener Magazine here.