Dilution ratio of Neem Oil for Lily Beetle Repellent

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I had a lovely display of your lilies last year and hopefully again this year,
I notice you have had luck with neem oil!! Could you tell me what is the best dilution ratio for this, and what to use,
Regards malcolm

Yes we have had some good results from diluted Neem Oil! We recommend using a hand sprayer with 1 teaspoon of Neem Oil (5ml) plus a small amount of washing up liquid (as a surfactant) with approx. 500ml water. So 1 part Neem Oil to 100 parts water (1:100).

Loraine Hart