Questions tagged [pesticide]

Chemicals used to control pests. Use this tag with questions about how to choose and use pesticides with different plants.

Use this tag for questions about chemical controls for . These will typically be insecticides and s, although pesticides for mammals would also be on topic.

Pesticides can be synthetic or organic such as Neem oil.

The use of pesticides on is tightly controlled in most jurisdictions.

Similarly, other pesticides have their dangers. Mammal pesticides (e.g. rat bait) can poison pets and children; herbicides can poison desirable garden plants; and insecticides will kill many beneficial insects. Most are poisonous to humans.

By definition, pesticides are poisons. Depending on the question, the tag may be suitable in addition to or instead of the tag..

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How toxic is zinc sulfate for moss control?

I live in Portland, Oregon and I'm battling moss on my asphalt shingle roof. I usually scrub it off manually, but it's extra bad this year and I might need more help than my broom. My neighbor swears by Moss B Ware which is zinc sulfate. I don't…
emersonthis
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small white pests moving on my soil need identification

I see these very small white pests moving on the soil which belongs to my peace lily for around two weeks. -they are just on the soil -I haven't seen any change in their size or their color within these two weeks but they seem to grow in number…
moh91
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mealybugs, spider mites, on ALL of my plants!

So I am currently dealing with essentially a houseplant massacre: boston fern is infested with (I believe) mealybugs bonsai cape mallow is infested with (confirmed) mealybugs bonsai south african ficus is infested with (I believe) spider…
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Pesticide for plants?

For some reason, most of the plants at my house have some sort of bug, from mealy bugs to whiteflies to other crap. I've been spraying with soapy water but it's not working. What pesticide can I buy to get rid of these bugs for a considerable…
rbhat
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Help with weed identification - how can I get rid of them for good?

What are these weeds? I've been hitting them with 3 way (2,4-D, Quinclorac, and Dicambia by Bayer) a few times now but they seem to persist. I'm using the "home owner strength" of the 3-way so the %'s are lower than the professional kinds.
J Dilly
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How to kill a butterfly bush

I have a large butterfly bush in my back yard that has grown up between fences (the previous homeowner put privacy fence on either side of a chain link fence, so its impossible to get to all of the roots without ripping out a lot of expensive…
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Is Bifenthrin available for sale in Canada?

I want to treat my backyard for mosquitoes and have seen Bifen I/T as a recommended brand in many articles. After searching for it, I realized I could not find any Bifenthrin products in Canada. Am I missing something? what do pest control companies…
finstats
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Why do wettable sulphur manufacturers say never to use it within 30 days of an oil-based spray?

And further: 1) what qualifies as an "oil-based spray" and at what amount? 2) does this warning still apply during the rainy season-- when the need for quick cycles of medicines is necessary? (and yes, I've tried to ask manufacturers but to no…
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What are some organic-approved solvents I can use to make my own liquid agri-mixes?

I have a few ideas for organic pesticides/fungicides etc. They're intended to be sprayable, and ideally soluble in water. What are some organic-approved solvents?
kladhest
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