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red lily beetle? have you checked under the leaves for the larvae?
the adult will drop off to the ground the moment you touch them and they feel threatened
Thankyou Jonathan I'll take a look today , I have sprayed it all with lily beetle spray but not sure how effective it is
regards
Steve
I have found one adult and a line of offspring this morning, hidden in the secretion under one leaf. You can just see their heads poking out.
I didn't realise they wrrr that big , jeez
the spray must be ineffective ?
A quick update folks , just incase anyone else comes across this problem
it was bloody slugs!!!!
Never known a year like it for slugs and snails- too much rain, and not enough frost.
The above picture looks like slug/snail damage rather than lily beetle - though I've not seen slugs/snails do damage to lilies before.
Lily beetle adults create lots of small holes in the leaves, and more importantly, create the larvae that will strip the plant of leaves in a week. They start at the bottom on the tip of the leaf, chew to the stem, go to the next leaf up and start again, with the leaf completely gone.
Bug killer is effective on the larvae, but as they live and eat from the underside of the leaves, you have to spray upwards rather than downwards.
I'm using Nematodes for slugs this year... trying to be organic!
Nematodes for a lot of things from now on...Been applying it to Viburnum beetle. Last week..
Snails will eat lily leaves and this looks like snails or slugs. To find these critters you'll need to do a night patrol and pick them off under the light of a torch. Lily beetle damage is often holes within the edges of the leaves and the edges discolour fairly rapidly too. Having said nearly all lilies are attacked by these red devils on warm days and of course, if they get the chance to mate and lay eggs, the grubs do munch the entire leaves like the photo someone else posted and they're a nightmare to get off the leaf because they're so gooey covered with their own excrement. It's best to remove the beetles if you can. Try holding a small container underneath (like a yoghurt pot) and poke the beetles into it with a pencil or a very small knife like a paper knife. Preferably not one that will easily cut the leaves as well! Whilst they can and do fly, they don't tend to when they're on a lily. They will try and retreat into the crevice between leaf and stalk but if you have a slender tool you should be able to get them out. If they do fall they often lie on their backs as their black undersides are less visible, say if they fall on to surrounding soil. But if you have your container hopefully you'll catch them. Then, I'm afraid to say the onlly solution is to put them on the ground and squish them. The grubs are very difficult and messy to remove. And yes I try to spray them with Grazers lily beetle spray. It is supposed to make the lily leaves less tasty and does have some effect, but you need to re-spray after rain. I even tried it on my Solomon's Seal which can be eaten to shreds by grey sawfly grubs and I think it has been somewhat successful.
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