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Questions tagged [toxicity]

For questions about toxicity of certain plants, materials, pesticides, fertilizers, soil additives and more.

41 questions
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Does juglone affect crop yields?

Since black walnut trees affect the plants growing around them, do the yields of more tolerant plants have yields affected by the toxin to produce less?
black thumb
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Will rusty nails in garden harm plants or people who eat the plants?

Other than the risk of injury and tetanus, will the hundreds of rusty nails inexplicably found in sections of my garden harm the plants that grow there or the people who eat said plants? They are so rusty that they are barely even nail shaped, most…
standgale
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How toxic is Amdro in a vegetable garden?

Amdro's own marketing says not to use on vegetable gardens, but everyone I know does it. How toxic is Amdro? Does soil treated with Amdro "go bad" or does the product break down naturally? And if so, how long after applying Amdro before you can grow…
Evan Carroll
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Can you put a vermicompost bed in-ground next to a Schinus molle/areira tree?

I received some red worms that I am currently keeping in a plastic container. I would like to make a hole in the ground and keep them there, lining the hole with something breathable so the worms stay there. The issue is that where I want to make…
Nioap
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Will Potassium Oxide reduce uptake of Sodium as much as Potassium Nitrate

I recently read that the potassium cation (K+) can reduce or prevent the uptake of sodium. I was wondering when a fertilizer lists Potassium as Potassium Oxide, will it have the same blocking effect on Sodium as Potassium Nitrate (KNO3)?
ammoun
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Melampsora toxicity

We today collected some wild garlic leaves (Allium ursinum) in the garden, and we found small points on the leaves. They are white or yellow, it's difficult to tell because the points are just half a millimeter big. The wiipedia article on wild…
TheEagle
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What is the right combination of neem oil and other substances to treat tiny black flies infestation in soil?

What is the right combination of neem oil and other substances to treat tiny black flies (fungus gnats, I believe?) infestation in soil?
ina
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Concerns about Petty Spurge and toddler

We believe we have a thick scattering of Petty Spurge in the garden and patio. I've read that it's sap is toxic and a severe irritant. NOT what you need with a very curious toddler around. Can anyone suggest the most effective way to rid ourselves…
Helena Johnson
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What type of mycelium do I want to integrate into my soil to take up mercury from the lake front aquaponic garden?

There's a mercury in the water near me. What type of mycelium can I use to treat the problem to get it out of the water? I plan to use the grass that grows in a bioreactor, then put the liquid byproduct in the trash that I send to the landfill as a…
black thumb
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Toxic painted on gardens bed

I am new to gardening. I painted my gardens bed with toxic paint . Please what can I do to fix this. I do not know what to do . I am new.
Lynda Manasse
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Are there toxic or inedible kinds of asparagus?

I discovered what looks like asparagus growing in my backyard. I had cut these down around 3-4 weeks ago (they were fairly tall "wispy" bushes then, with a lot of small red fruits hanging off, so I didn't recognise them as asparagus at the time --…
hiccups
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