Provado ultimate bug killer. Do it now and they should stay clear for about 6 weeks. Don't spray when near to flowering or the bees get poisoned as well. I don't normally spray but I make an exception for lily beetle as birds won't touch them.
I must admit as a pretty anti chemical gardener, I have been known to use Provado for my large collection of lilies, with very little conscience. The darned beetles are not a natural species here so nothing recognises them as prey, that colour makes them something so self repecting bird would try - so we are stuck up a gum tree with teastrainers and /or provado!!
Bookertoo - Provado is a systemic insect killer which is taken up by the plant and makes it toxic to ALL insects, including those we do want as well as those we don't. As well as killing Lilly Beetles, you're also killing bees, etc, because the nectar and pollen will contain the the insecticide. I've stopped using Provado for that very reason. I do use a tea strainer - the spring loaded tea ball one - looks like this.....
In fact all my lilies are grown in pits and are thus separated from the rest of the plants and insects - I did it once when we went to America and knew I would come back to 100 black sticky sticks and nothing else - usually it is just the tea strainer!!
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Provado ultimate bug killer. Do it now and they should stay clear for about 6 weeks. Don't spray when near to flowering or the bees get poisoned as well. I don't normally spray but I make an exception for lily beetle as birds won't touch them.
I must admit as a pretty anti chemical gardener, I have been known to use Provado for my large collection of lilies, with very little conscience. The darned beetles are not a natural species here so nothing recognises them as prey, that colour makes them something so self repecting bird would try - so we are stuck up a gum tree with teastrainers and /or provado!!
PS I have this hosta, if I remember correctly it is called 'whirlwind'
Bookertoo - Provado is a systemic insect killer which is taken up by the plant and makes it toxic to ALL insects, including those we do want as well as those we don't. As well as killing Lilly Beetles, you're also killing bees, etc, because the nectar and pollen will contain the the insecticide. I've stopped using Provado for that very reason. I do use a tea strainer - the spring loaded tea ball one - looks like this.....
http://mystir.com/tea-ball-ttongs
Best bit of gardening equipment for capturing Lilly Beetles ever invented!
In fact all my lilies are grown in pits and are thus separated from the rest of the plants and insects - I did it once when we went to America and knew I would come back to 100 black sticky sticks and nothing else - usually it is just the tea strainer!!