Poisonous plants in the yard
There was a black plastic tarp laying over the ground in the backyard. I picked it up and under it were these white things and a very large broad leaf.
Seems these are calli lilys and they are poisonous to cats, dogs and people.
I don't know how these got there and if there will be more to be found but 
those things creeped me out so bad!
I dug them up and poured some cleaning vinegar over the area where they were.
Will they come back again?
There are so many poisonous plants where I live as it is a semi-deciduous rain forest in this part of America in the pacific northwest of California.
I hired a new landscape company yesterday and they are going to work on getting my yard full of weeds in order.
I seriously hope this works out as I'm at my wits end!
Any advice on how to deal with poisonous plants on your property?
Please advise if you do!
Thank you.
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The most effective type is hard to find in California. It will knock just about anything out.
You can use regular vinegar or cleaning vinegar (more acidic) but be careful!
If you are using anything stronger than the regular type you buy in a grocery store, make sure you are well protected (mask, gloves, eye protection, etc.).
So yes, it works alright and a lot of landscapers use it to get rid of weeds.
I poured some on the power meter outside and dandelions were growing in and outside of it.
Within a few days, they were all dried up and gone for the time being.
I'm giving up working in the yard. I'll leave it up to the new landscape company that I just hired (twice a month at $60/visit). My Greenworks corded mower is on its way out and a new 100 ft. cord is needed. I don't care to invest much into it as it is what it is ... ok for some things but a large yard ridden with weeds = 
I'm in no condition to be doing this type of work anyway, but the calli lilly thing freaked me out good so I'm done!
Best of luck and I hope the vinegar idea(s) help!
I'm not a fan of amazon.con but here you go.
https://www.amazon.com/Green-Gobbler-Concentrated-Stronger-Traditional/dp/B09NMX7F97/ref=asc_df_B09NMX7F97?tag=bngsmtphsnus-20&linkCode=df0&hvadid=80127029835651&hvnetw=s&hvqmt=e&hvbmt=be&hvdev=c&hvlocint=&hvlocphy=&hvtargid=pla-4583726558314015&psc=1
Best of luck! 
English Laurel hedges killed my kitty in 2016! English Laurel when cut releases deadly cyanide!
I take these poisonous plants seriously. Every one should! 
As for use of vinegar, I do not see how spot applications are a problem.
Overuse of vinegar is not a good idea at all I agree.
Excellent video on how to use 30% vinegar:
Not systemic but the more often you use it the likelihood of things coming back is less.
When you cut into it, cyanide is released.
It poisons everything that goes near it, including you!
Scary stuff some of these plants.
I finally hired a landscaper to deal with my property.
I live in a semi-deciduous rain forest and all sorts of strange things grow here! 
I'll let the new landscaper deal with it.
Its not a wise idea for me to do it anyway as I have an illness that is heat-activated. Because of this, I am wobbly and falling down when my body temperature goes up even one-half of a degree so I should just accept this and forget it.
I'll glad I found someone to deal with the whole lot. It is quite large and takes me several days to work on it whereas the landscaper is in and out in less than a half-hour or so.