Pesticide During Flowering

kcsov6

Member
Pretty sure I messed up my grow. Long story short we have bugs horrible in my area (live in the sticks). I uses Sevin on my plants this year until I got Neem Oil.
2 weeks into flowering on my only female I decidecided to rub Sevin Dust on the leaves. Now I'm worried about it being on the bud which is inevitable. I drenched it with a hose and lightly blew it off with an air compressor*attachment.
Should I just toss it? I assume the dust will be locked up pretty tight in the bud no matter what happens over the next 6 weeks
 

GreatwhiteNorth

Global Moderator
Staff member
Sevin is pretty nasty stuff - were it me I'd burn it on the burn pile staying way upwind of it.

"SECTION 3. HAZARDS IDENTIFICATION
NOTE: Please refer to Section 11 for detailed toxicological information.
Emergency Overview
Caution! May be harmful by inhalation, ingestion, skin adsorption. Avoid contact
with skin, eyes and clothing. Extremely toxic to aquatic and estuarine
invertebrates. Highly toxic to bees.
Physical State
liquid opaque
Odor
mild
Appearance
white to beige
Routes of Exposure
Ingestion, Inhalation, Skin contact
Immediate Effects
Eye
Causes redness, irritation, tearing. Avoid contact with eyes.
Skin
Harmful if absorbed through skin. May produce symptoms similar to those from
ingestion. Avoid contact with skin and clothing

Ingestion
Harmful if swallowed. This product causes reversible cholinesterase inhibition.
Repeated overexposure may cause more severe cholinesterase inhibition with
more pronounced symptoms. May lead to rapid onset of nausea, vomiting,
diarrhea, abdominal pain, involuntary shaking, excess salivation, pinpoint pupils,
blurred vision, profuse sweating, temporary paralysis, respiratory depression,
and convulsions. Do not take internally.
Inhalation
Harmful if inhaled. May produce symptoms similar to those from ingestion. Do
not breathe vapours or spray mist.
Chronic or Delayed
Long-Term
This product or its components may have target organ effects. This product
contains ingredients that are considered to be probable or suspected human
carcinogens (see Section 11 - Chronic).
Medical Conditions
Aggravated by Exposure
Inhalation of product may aggravate existing chronic respiratory problems such
as asthma, emphysema or bronchitis. Skin contact may aggravate existing skin
disease."

I don't seem to be able to post the link I would like, but google "Sevin MSDS" for more info.
 

kcsov6

Member
Yeah it seems pretty sketchy. It is an outdoor plant if that matters.
I did ask a guy who's grew for years around here. He said it should be fine because the bud will be growing outward but idk I'm debating until I hear more suggestions
 

GreatwhiteNorth

Global Moderator
Staff member
Hit the provided link, read all the Material Safety Data Sheet & if you feel ok with putting that in your body then do so.

Me? I'd rather not ingest something that toxic.
 

topfuel29

Well-Known Member
I only use Sevin in Veg. It's designed to stick to the plant.
It gets into the fold of the buds. Like you said pretty impossible to get it all out.
The only thing I can think of is Rinse your buds out good in the sink. After you harvest you should be able to soak your buds for a while. You won't get it all, but it's worth a shot.
 

GreatwhiteNorth

Global Moderator
Staff member
I note that the pesticide itself is miscible so that's a plus, but at what cost ?
Additionally, any runoff should be contained and treated as the HazMat that it is.

This stuff is straight up poison & I'd destroy treated plants rather than risk hurting myself or someone else out of greed.

"Extremely toxic to aquatic and estuarine
invertebrates. For terrestrial uses, do
not apply directly to water, or to area
s where surface water is present, or to
intertidal areas below mean high water mark. Do not allow this product to drift on
to non-target areas. Do not contaminate surface or ground water by cleaning
equipment or disposal of wastes, including equipment wash water."

Jim Jones would love to play with this stuff.
 

topfuel29

Well-Known Member
The Sevin has a half life of 14 days on leafy vegetables. That's how long you'd have to wait after application for it to break down for consumption.
Very true out of the bottle it's some potent stuff. That's one of the reasons you use it. but it breaks down quickly. It has to if it's intended to be used in people's Vegetable Gardens.
Sevin® is a trademark for the insecticide commonly called carbaryl.


http://pmep.cce.cornell.edu/profiles/extoxnet/carbaryl-dicrotophos/carbaryl-ext.html
Carbaryl has a short residual life on treated crops. The insecticide remains at the application site, where it is slowly taken into the plant and metabolized. Insecticidal properties are retained for 3-10 days. Loss of carbaryl is due to evaporation and uptake into plants. Breakdown by sunlight does not appear to be significant.

Degradation of carbaryl in the soil is mostly due to sunlight and bacterial action. It is bound by organic matter and can be transported in soil runoff. Carbaryl has a half-life of 7 days in aerobic soil and 28 days in anaerobic soil (9). Degradation of carbaryl in crops occurs by hydrolysis inside the plants. It has a short residual life of less than two weeks. The metabolites of carbaryl have lower toxicity to humans than carbaryl itself. The breakdown of this substance is strongly dependant on acidity and temperature.

"Send those Buds to me man, I've smoked lots worse than some degraded insecticide." bongsmilie
 

GreatwhiteNorth

Global Moderator
Staff member
I didn't keep looking beyond the MSDS - if the product degrades quickly then I would ease up a bit.
I still dislike ingesting chemicals I can avoid - too many friends and relatives have been "Touched" by the big C to be comfortable with that stuff.
 

wvblazin

Well-Known Member
I use it a lot during veg.. usually twice per month and once again when I first notice its transition into bloom. From what I've noticed it washes away within 4-5 days but then again we've had a pretty wet summer. I also always soak my buds in water for a few minutes as soon as I harvest just to be on the safe side.
 
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