I think some of my hostas have these. I noticed it last summer but didn't know what it was, thinking it looked like sunburn. Well it is way too early in the year now for that. So I have decided that it is damage from nematodes. Any tips on at least controlling them, tried google but as near as I can tell there are differing opinions on what to do, but all agree they are basically impossible to irradiate. Sure looks unsightly

I will post some pics later of what I am seeing on some of my hostas. I am wondering if cutting off the affected leaves is enough to keep it under control? One of my hostas has it on almost every leaf, thought I may be able to just cut off the parts where it is instead of cutting off the entire leaf. Otherwise poor thing would be bald

I read that there is now a fungus that looks a lot like nematode damage... another challenge for us gardeners! I've cut damaged leaves off, and the leaves looked fine the next year. I did the leaf in the water dish and magnifying glass thing, but never saw any nematodes. So, I'm not sure if cutting the leaves off will help if you have nematodes. What do you have to lose though?

You won't see nematode damage at this time of year. In my zone 5a, it starts to show up around the end of July, beginning of August. Could be a bit earlier for you, but the beasties are dormant in the soil over winter and have to get into the hosta (or other plants), and start chewing. If you are watching carefully, you will see some leaves start to get yellow between veins before they turn brown. You may have the fungus. If you do, a fungicide and a good clean-up would be in order as well as ensuring that the plants have good circulation.

Re nematodes, I've had good success with a couple of plants simply digging them very early in the season, washing the roots well, soaking in a weak solution of Pine-Sol and water and then replanting in clean soil. Obviously not a practical solution for an entire garden though.

ok, here are some pics of what I am seeing

Would love anyone's thoughts.
Weather, early spring, some cold nights even the the day temps have been unseasonably warm, broke some records there.
LOTS of rain, however on the east side of my house where these are, they don't get alot of rain, so they have ample moisture but they have not been saturated, sitting in water or anything like that. The only thing I have sprayed them w was a mixure of liquid fabric softener and water to try to keep the deer from eating them. No fertilizer this spring, did toss out some slug pellets, but I use those every year and this is the first year I have noticed this damage (last year I noticed something like it but it was later in the summer and I passed it off as sunburn).

That looks like weather related issues to me. Some of mine have almost transparent leaves due to the cold, wet weather...

well they leafed out fine and did this seems like right over night.

Did you have chilly night temps after they unfurled, or cloudy cold days? If so, that's probably the problem. Like ViolaAnn said earlier... nematode damage doesn't usually show up until later in the growing season.

Yes, our weather has been crazy!
The large leafs look almost like the flesh of the leaf 'inside' is gone, and just a shell-like structure is left. There are no holes in the plant, like it is gone from the inside. Not sure how to explain that so it makes sense. I really do hope it is weather related and that is all.

The second one looks like 'Frances Williams' to me. It is notoriously susceptible to spring desiccation burn and I think that is what you are seeing. It can affect the plant even in shade, but is sometimes worse than at other times.

For the others, I would agree with the assessment that it is weather related. Sometimes if a spring is cool and cloudy and you suddenly get strong sun before the trees leaf out, you can get issues like that. But bottom line, I don't think it's a virus or nematodes.

Yes it is Frances Williams. It is on the north side up to my house and gets basically no sun whatsoever The others only get morning sun on the east side, have evergreens there so no issue w the leafing out. I am thinking Francess Williams will be sentenced to the compost if it looks like this next year. Plenty of other things to grow that don't look like that right out of the shoot. I am glad to hear that no one thinks there is a real problem though w the hostas that is peace of mind. We have had tons of rain (setting records, flooding ect) so fungus may still be a question, but I think that would be treatable w a spray? and will at least go away when the weather heats up and dries out I would think.