I have tall white lilies and shorter stargazer type lilies and something is eating all the leaves. The flowers appear untouched, but the rest of the plant is ugly. What is doing this and what can I do to change this?
Please be very careful when using Dawn dish soap (or any bottled soap) as you can kill many plants if not used properly. Many people just say spray your plants with Dawn mixed in water and that can be disastrous if mixed too strong.
Here is some information on how to make an insecticidal soap with Dawn:
The recipe for homemade insecticidal soap requires only three ingredients: Dawn dish soap, vegetable oil and soft water. Mix 2.5 tablespoons of the Dawn dish soap and 2.5 tablespoons of vegetable oil with 1 gallon of warm soft water. The Dawn dish soap used in the recipe must not contain bleach, which could harm the plants. Furthermore, you should always use soft water when diluting pesticides. Hard water contains minerals, which interfere with the insecticidal soap, reducing its effectiveness.
It is generally always safe to use insecticidal soap even 2 or 3 days after some other treatment has been used.
My mum and I use this Bayer spray. It's very cheap and works great:
Various garden insects can do damage to the leaves of your plants. Discovering the culprit can help you get rid of them. This is a page about something is eating the leaves on canna lilies.