'Rhino Hide'. Someone told me that spraying the leaves with diluted Sunlight dishwashing detergent would kill earwigs. I'm going to try it on the new hostas I planted yesterday and will report back if it works.
I'm sorry your hostas are having a rough time of it. I picked up a baby LS Black Satin recently and hope it eventually develops into a dark green. How long have you had yours and does it get really dark? I read that some versions do not.
Eleven, I may try relocating LBS next spring. It had a lovely black satiny sheen when I bought it in 2008. It looked better last year and of course my experiment using dishwashing detergent didn't help the colour. I'll try the detergent on the ground as I may have misunderstood the advice I got about using Sunlight. It doesn't get any direct sun. Where have you planted yours? Would love to see a picture of yours. Sounds like it has fared a lot better than mine.
My hostas have been hit worse than usual. And to top it off, I've had foliar nematodes invade my garden too. I've decided that if I destroy everything with nems, I won't have anything left; so I've already cut a couple of plants right down. But the damage from slugs and earwigs in definitely not uniform.
This pic taken August 3 shows 'Rainbow's End' in good shape. To the right is 'Surprised By Joy' and at the back is 'Hidden Cove'. The one at the right which isn't quite as badly damaged is 'White Dove'.
I think with mine it's mostly earwigs doing the damage. I did use ammonia and water in the spring but forgot to add insecticidal soap. I hope the hostas will come back the following year if chewed right to the ground. BTW, ViolaAnn, I've added 'Rainbows End' to my wants.
irawon, by "recently" I meant that I just purchased my baby LS Black Satin =)
I don't have any good pics of it yet, but here's slightly blurry one from a couple weeks ago when I brought it home. The veining reminds me of a young Sagae I brought home that corrected itself after planting. But yes, the leaves do appear thin compared to others. I'm glad we don't seem to have the pest issues here that so many of you experience.
That's a great looking plant and I hope you find a good spot for it. I'm going to try mine in a bit more light to see whether the black satin sheen it had will reappear. You are so lucky not to have to deal with slugs and earwigs.
"Lakeside Swiss Cheese" made me chuckle. Most of mine look lousy up close...luckily this year many of them have some size to them so it bothers me less...I just stay away and don't wear my glasses around them. I gave up on the slug hunts when we got a new puppy in July and they have been having a field day out there. I also have a couple browning out and going dormant early, I think.
I only added two new hosta this year and interestingly, both of them look like they may have nematodes. I will either do the hit water baths or isolate them and deal with it next year. The ones I treated last year are free of them this year
I asked Chris on Hallson's about nematodes and he replied that if you do the hot water bath, it is likely that the plant will die or be stunted and then when you put it back in the garden it will likely get them again anyway. I've decided to live with them although I'll try not to move things between gardens that are infected and those that aren't. Anyway, this year they started infecting plants I care about. As soon as I confirm an infection, I'm cutting the plant off completely and will clean up the garden well. I plant to cut down all of my hostas this fall and dispose of the foliage in the city garden pick-ups.
ViolaAnn and Noreaster - sorry to hear about the nematodes. I'm closing my eyes. Noreaster, a new puppy, how nice. How, I miss our last one. You know, I thought to myself as I started this thread that sooner or later Noreaster will post.
Ann, the larger ones I treated last year are perhaps a little smaller, but I expect by next year they will be great. the smaller one I treated last year is the same size as before. They not only didn't die, they didn't even turn brown after the water bath- I was shocked about that! I'm not worried about them getting reinfected because they are now in pots or agroliner bags, and the hole they were in (only two were actually planted in the ground) was doused with boiling water.
Irawon, yes, the new puppy has been very time consuming. He has already had surgery at four months old to remove a mast cell tumor on his butt. Very rare to have a MCT in a puppy that young, but lucky us. :( We have to hope it doesn't come back, but I feel in my heart he will be ok. We love him a lot and he has brought happiness back to our older dog Mickey, who has been missing his brother Seamus that we lost over Christmas. So yeah, slugs and the garden reply took a back seat this summer for us.