Can anyone help me with my Tiger Lilies? This is my first time growing them. I have 3 or 4 with these rusty looking spots on them & 1 with what looks like silver streaks on one of its leaves. I have researched all over the internet and can't find anything similar to the issue I am having with these tiger lilies. Any advice is appreciated.
Oops! yes, I meant toad lily! Thank you for correcting me! I always thought slug damage were holes in the leaves (like on Hostas.) Would slugs cause those orange spots? Here is a picture of another Toad Lily leaf on the same plant as the one with the orange spots pictured in my 1st post. Would this be caused by slugs, too?
No the last post looks fungal...I went searching and found an article on Anthracnose showing up in Tricyrtis. I also found references to Puccinia speciosa var nov...which is a form of rust...and rust leaves orange-y streaks on leaves. Evidently this is a fairly recent developement because the is very little info on it and most of what I did find were scientific papers or minor references.
themoonhowl, I think you figured out what is wrong with my toad lilies. After reading about the Anthracnose virus and looking at pictures, I am pretty sure this is what mine have. Thank you for your response! And thanks to everyone else who responded, too.
Now I need to figure out if I should just cut them to the ground now, just remove infected parts, treat them with something, or throw them away altogether. Any suggestions?
I did find some info for you. I had anthracnose show up on a hydrangea a few years back. i was told to remove the diseased leaves and put them in the trash and clean up the ground around the plant. Then, my option to treat with a fungicide or just leave it alone as the plant would survive...then in spring when the plants started leafing out to treat with a fungicide, making sure to spray the ground under the shrub also. I was told to apply a heavy layer of mulch to help keep soil from splashing up on the plant during rain or watering
With nasties like Rust etc, I would be removing the LEAVES that are affected and burn them or dispose away from any compost or other plants, just pick them off the stems and wash hands afterwards, also gather any fallen foliage on the ground as some rusts can lay dormant over winter.
It has been a troublesome year or two with troubles we have not had before and I put it down to prolonged dry spells and then heavy rain or watering, add high humidity.
If you water by hand, try to aim the hose or water can onto the ground around the root area of the plants, even if it means lifting the foliage by hand, I walk around with a kids garden rake or broom and lift foliage as I go but my friend has placed canes along border edges and string that hold up the foliage. personally my own style of border is, I like everything to tumble into each other to get the colours and textures mixed together for a cottage effect but we all have different plots so you will find the best way to suit you.
The yellow blotches are probably a deficiency either in the soil or in the bulbs or maybe the rust beginning, either way, most HEALTHY plants will withstand a bit of rust, bugs or whatever, but you have to feed them as well as water them , get into a routine of feeding all your plants but first test your soil, you cab buy a very cheap soil testing kit from garden centres and I mean cheap, after the little test shows up what type of soil you have, then you will know what needs added but for general feeding I add a handful of chicken pellets and 2 handfuls of blood/ fish/ bone meal, but my best addition is my home made compost or well rotted horse manure as this stuff enriches the soil, allows air into it and also helps to keep roots cooler and retains moisture also.
Fork any added feeds/ humus into the top soil either as a mulch (HUMUS or the dried feed Fish/bone etc and rain or watering will take it down to the roots where it,s needed.
Try NOT get feed onto the foliage as it can burn the leaves unless you have chosen a foliar feed, which is really not my choice for outdoor plants as the rain can wash it all away, anyway, I feed early spring and again end of summer when I do my tidy up for winter and I'm putting the garden to bed for winter or getting the weeds and forking over the beds for spring when nice fresh shoots are showing.
Both these times are the best time to lift and split any plants or clumps of bulbs too.
Hope this helps a bit and you can get nice new trouble free flowers / plants for next season.
Good luck. WeeNel.
Thanks themoonhowl and WeeNel for all the great information and suggestions you have given me. I will remove infected leaves first thing tomorrow morning and get that fungicide on the rest of the plant. I will try the blood/bone/fish meal feeding as well and see how it goes! You all have been so helpful and I completely appreciate it!