Q&A – Just how safe is Sevin insecticide?

Q&A – Just how safe is Sevin insecticide?

Sevin (carbaryl) is very safe to humans. Retired UT Extension Agent Mike Dennison says toxicity is judged based on LD50, the amount of the chemical per kilogram of body weight required to kill half the test population. Carbaryl has an LD50 of 350-500 mg/kg of body weight. He compares carbaryl’s toxicity to other common chemicals. Carbaryl is very toxic to insects including beneficials and it toxic to fish. Make sure you read and follow the label directions on any pesticide.

Here are some other useful videos on insecticides:
Carbaryl: https://www.youtube.com/watch?v=Cy1PfY_Shzo
How to Read Garden Chemical Labels: https://www.youtube.com/watch?v=Rwli0o4htkU
Mixing Pesticide: https://www.youtube.com/watch?v=7lHwjp7i8FQ

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  1. JDP on October 31, 2022 at 8:46 pm

    Is this a commercial for Monsanto? Glyphosate doesn’t have to kill you immediately to be dangerous. Over time, it’s looking pretty darn bad!

  2. Rachael Pohlman on October 31, 2022 at 8:55 pm

    I think in ALL situations, you have to weigh the risks and benefits.
    If you get ill, you fight a cold different than say, cancer. You’d never use cancer meds for a cold.
    However, often we go into pest control like fighting cancer. We pull out all the guns to kill everything immediately, damn the consequences (or being ignorant of any potential consequences).
    BUT…There is a time and place for stronger substances. There is a reason our grandparents invented these chemicals and chose to implement them in farming practices. We are so far removed from the true volatility of potential food insecurities that we often become arrogant in our views on pest control & other management methods.
    We must start to think smarter, read for ourselves and strive for proper balance. See products like Sevin, as an option, not the rule.
    We must start using the correct medicine for the issues we have.

  3. TwoBrokeGuyz on October 31, 2022 at 9:04 pm

    I’m not sure using “fleas” is a good example for all insects. Fleas are known for their tolerance and built up resistance to insecticides. But I could be wrong!

  4. Andrew Price on October 31, 2022 at 9:04 pm

    I know I’m two years too late but ld50 tests are a terrible gauge for the safety of a chemical. even look at the ld50 on Roundup although it does take a huge amount to kill you quickly, the long-term effects can be quite devastating.

  5. Dr. James Olack on October 31, 2022 at 9:04 pm

    Sevin is nothing to take lightly.

  6. MRgreen on October 31, 2022 at 9:08 pm

    to bad Carbaryl is not in your sevin you buy from stores. seven is now a different compound ZETA-CYPERMETHRIN. not sure how i feel about this. you can still buy Carbaryl. you just need to make sure you know your active ingredients. seven and Carbaryl were always known to be together. i found it odd people always referred to it as seven. i tend to use the active ingredient names instead of brands. its very confusing this way. its like saying i use Bayer insecticide. ok which one. it just makes more sense to say the active ingredient first.

  7. N L on October 31, 2022 at 9:10 pm

    Does anyone know if it kills the microbial life in soil?

  8. Joe Fude on October 31, 2022 at 9:16 pm

    It seems like only looking at LD50 is a very narrow scope of toxicity (acute) and says nothing about chronic toxicity (Glyphosate, anyone?). The label states that it is a cholinesterase inhibitor, which, from a quick Google search, it seems to inhibit nervous system function. There are also reproductive damage concerns. I’m not saying anything about Carbaryl, just that the scope of the video, probably due to the time constraints we all face, couldn’t really get into the nitty gritty of all the possible concerns with any chemical. Perhaps review the name for the video so it is a little less misleading, perhaps something like "How much Sevin dust does it take to kill someone instantly?" or add a little bit about other reasons it is safe and answer questions folks might have such as "How many years has it been around?", "Why did California require a prop65 warning?"

  9. Diane K on October 31, 2022 at 9:29 pm

    Thank you to the man who said they were toxic to bees!! I think the white dude was either paid off by the Seven company or just doesn’t care if people and nature is hurt! If its "safe" would u eat it? If you’re comparing it to other harmful & LETHAL substances then ITS NOT SAFE. Stop lying to people

  10. Douglas Graham on October 31, 2022 at 9:33 pm

    If you’re still living, it must be pretty safe.

  11. Lioncrest Outdoors on October 31, 2022 at 9:35 pm

    This guy just sat there and goal post moved every time something negative came up about his sales pitch.

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