Spinosad... safe or not?

I have heard that dispensaries cannot sell weed that tests positive for Spinosad. Also I noticed that it is not OMRI compliant, even though for instance Captain Jack’s says for organic gardening.

Any thoughts?

@Skydiver @garrigan62 @Budbrother @Mrcrabs @Myfriendis410

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Might not have had the testing done.

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Yes, I imagine its not free. But why is Spinosad on the list of “not allowed” when testing buds? Or am I misinformed?


What is spinosad?

Spinosad is a natural substance made by a soil bacterium that can be toxic to insects. It is a mixture of two chemicals called spinosyn A and spinosyn D. It is used to control a wide variety of pests. These include thrips, leafminers, spider mites, mosquitoes, ants, fruit flies and others.

Spinosad has been registered for use in pesticides by the US Environmental Protection Agency (EPA) since 1997.

What are some products that contain spinosad?

Currently, spinosad is found in over 80 registered pesticide products. Many of these are used on agricultural crops and ornamental plants. Others are used in and around buildings, in aquatic settings, and as seed treatments. These products are commonly sprays, dusts, granules, and pellets. Some of these products are approved for use in organic agriculture.

Spinosad is also found in some drugs regulated by the US Food and Drug Administration. These products are used to control head lice on people and fleas on dogs and cats.

Always follow label instructions and take steps to avoid exposure. If any exposures occur, be sure to follow the First Aid instructions on the product label carefully. For additional treatment advice, contact the Poison Control Center at 1-800-222-1222. If you wish to discuss a pesticide problem, please call 1-800-858-7378.

How does spinosad work?

Spinosad affects the nervous system of insects that eat or touch it. It causes their muscles to flex uncontrollably. This leads to paralysis and ultimately their death, typically within 1-2 days.

How might I be exposed to spinosad?

People are most commonly exposed to very low levels of spinosad through their diet. Exposure can also occur if you breathe it in or get it on your skin or eyes. For example, this can occur while applying sprays or dusts during windy conditions. This can also happen after using a product if you don’t wash your hands before eating or smoking. You can limit your exposure and reduce the risk by carefully following the label instructions.

What are some signs and symptoms from a brief exposure to spinosad?

Spinosad is low in toxicity to people and other mammals. However, if it gets on your skin or in your eyes it can cause irritation and redness. In one study, 28 dogs were fed low to moderate doses of spinosad. One dog that received a moderate dose vomited. No effects related to spinosad were observed in the other dogs.

What happens to spinosad when it enters the body?

When eaten, spinosad is readily absorbed. Once inside it moves to many areas of the body and is broken down. The majority leaves the body in feces or urine within 1-2 days. Spinosad is absorbed poorly through skin contact.

Is spinosad likely to contribute to the development of cancer?

No. In multiple studies, animals were fed low to moderate amounts of spinosad in their diet for 1.5 to 2 years. No increased incidence of cancer was observed. Moreover, spinosad has not been found to alter or damage genes. As a result of these experiments, the EPA has classified spinosad as not likely to cause cancer.

Has anyone studied non-cancer effects from long-term exposure to spinosad?

In one study, dogs were fed low doses of spinosad for one year. Effects to gland and immune cells and increases in some proteins and fats in the blood were observed.

Scientists have also tested whether spinosad causes developmental or reproductive effects in rats and rabbits. In these studies, animals were fed low to moderate doses daily throughout their lives or during their pregnancies. Effects were only observed at the highest doses. These included lower body weights and effects to some organs. Abnormal vaginal bleeding, more difficult labors, and abortions were also observed in some pregnant animals at the highest doses tested. No direct effects to their offspring occurred at any dose level.

The EPA limits the levels of pesticides, including spinosad, allowed on food. Due to this, it is unlikely that individuals would be exposed to spinosad at levels this high through their diet.

Are children more sensitive to spinosad than adults?

Children may be especially sensitive to pesticides compared to adults. However, there are currently no data showing that children have increased sensitivity specifically to spinosad.

What happens to spinosad in the environment?

Spinosad is broken down rapidly by sunlight. In the presence of sunlight, half-lives on leaves are 2 to 16 days and less than one day in water. When applied to leaves, some spinosad can be absorbed. However, it does not readily spread from leaves to the rest of the plant. In the absence of sunlight, spinosad breaks down very slowly in water. Half-lives of more than 30 days to 259 days have been reported. However, it binds rapidly to sediment. The halflife in sediment, where no oxygen is available, ranges from 161 to 250 days.

Spinosad also sticks to soil and has a very low potential to move through soil towards ground water. In field studies, no break down products of spinosad were found below a soil depth of two feet. In the top layers of soil, spinosad is rapidly broken down by microbes. Soil half-lives of 9 to 17 days have been reported. After it is applied, spinosad is not likely to become airborne.

Can spinosad affect birds, fish, or other wildlife?

Spinosad is practically non-toxic to moderately toxic to fish depending on the species. It is slightly to moderately toxic to aquatic invertebrates. However, spinosad is very highly toxic to eastern oysters. Spinosad is practically non-toxic to slightly toxic to birds, based on studies with bobwhite quail and mallard ducks. It is moderately toxic to earthworms. Spinosad is very highly toxic to bees. However, evidence suggests that spinosad has little or no effect on honey bees and other beneficial insects after sprays have dried.

Where can I get more information?

For more detailed information about spinosad please visit the list of referenced resources or call the National Pesticide Information Center, Monday - Friday, between 8:00am - 12:00pm Pacific Time (11:00am - 3:00pm Eastern Time) at 1-800-858-7378 or visit us on the web at http://npic.orst.edu. NPIC provides objective, scienc



I eat that shit for breakfast!

Nice find @Myfriendis410 the article sounds sound but then again roundup and Teflon was considered safe too at one time. Not saying they are the same thing but we really don’t have a freakin clue about much of anything even though we think we do. I’ll say one thing though it wasn’t made in a lab but apparently in a old bottle of Rum so my spidey senses say low on the list of bad stuff but I know nothing. They are critters and if they get in and your critters are bad ass they will win and you’ll be fine…lol

Ok enough stoned posting back to flushing the seedlings…took a break to again check Ph meters to make sure they are calibrated so I’m not doing all that flush crap wrong. My $10 meters were closer than my $60 meter…


My original Apera has drifted considerably so I unlimbered the new Apera (I forgot the freaking model number) and have been digging on it. Nice unit and spot on. It also resolves to the .00 which is kinda schwank haha.

I feel the benefit of spinosad outweighs the potential harm. I’m sparing with it and always bud wash so I think those help too.


Great info brother, nice share👍

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That’s what I’m saying.

Man made
Nature made

These are the fullest of chemicals that the labs test for as being bad, Spinosad is on the list.

I know this thread is a year old or whatever, but is the consensus good on this stuff @Myfriendis410? I picked off a few looper worms off my outdoor girls today. I’ve had them every year mostly when flowering I’m picking them off like mad. I grabbed a bottle

cause I can’t find any captain jacks locally, or any BT spray either. I know I could order it, and I still will tonight but don’t want to wait for more leaves to get munched. Thinking about alternating between this and jacks every two or so weeks, the label on this Spinosad says not to reapply within 4 days and no more then 6 times total. It does have the OMRI seal. Thoughts?

I’ve heard from some other folks that it can impart a taste on your buds if used in later flower. ( Last 6 weeks or so. )
But where you’re having issues , yes it will kill the bugs but I would def plan on doing a bud wash at harvest.


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Yeah, I wasn’t going to use once they start really flowering. They only have preflowers right now, once they get further into flower I’ll probably stick to using capt. jacks, and I always do a three bin bud wash on my outdoor flowers.
Thanks for the response!

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Sounds like a good plan.
Good luck with the critters.

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Thanks man!

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Maybe a little. :joy:.

My outdoor purple trainwreck. Clone taken back in late Jan.
Sorry bout the shitty pic. :grin::v:

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Looking good! I had to top mine yesterday (third time) cause they were 6’ and aren’t even in flower :grimacing:

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This one was topped and fimmed 3 or 4 times and had the top 18 in or so removed due to height restrictions in a buddy’s veg room.
He gifted it to me.

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Yeah I have one that’s center branches shot up 13” and in 4 days after giving them their worm tea, now I’m scrambling to keep them under my “privacy” fence. :roll_eyes:

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Oh shit, I just found a thing of BT spray in with my grow stuff! I’ll just the Spinosad tonight, but I think I’ll use the BT spray from here on alternating with cap jacks.

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