MASSIVE SPIDER MITE INFESTATION!!!

[m0ff99]

Please help, after not going to check on my friends plants for a couple of weeks he's rang to say he has some 'strange web' on his 6 week flowered buds!!!! Aaaaarrrrggghhhh!!!!!

I really really dont want this friend to lose his entire crop but he's 3 weeks from finish and has the dreaded mite!!

We are uk based and i've never had em so haven't had the reason to sift through all the available products so i was hopng the fabulous people at icmag could chime in with their personal preference for dealing with this apparantly common but highly distressing situation.......i may get some photo's today but tbh it would feel wrong to page 3 the little bastards and everyone knows what it looks like(fucking awful)!!

Any suggestions would be greatly appreciated.

Growing space is a loft conversion and there are 28 plants grown in coco under 2400W of MH/HPS. Thats alot of bud to lose in anyones book.....

 

[gertnaerd]

hey man ...not much time for me...but a short answer...
so get all the heavy infected leaves off ...not at once...suck them off with with a vacuum sucker every week ...
hoping the best for your friend and yours

 

[TruthOrLie]

you were supposed to have some sort of preventative to keep them from developing webbing. Sign of bad infestation. once at the webbing stage, there are so many mites that pretty much anything you do risks breeding a super mite resistant to that poison or other remedy.

the vacuum cleaner will help a lot more than you think... about all you can do right now

there is a spray, sns 217... kills on contact, organic. maybe if you don't mind spraying nugs?

live and learn. next time use a preventative

 

[m0ff99]

Thanks for the replies guys, hoover sounds a little rough but i suppose not spraying em wth anything is my preference as i dont really want to injest anythng i wouldn't normally.....hoover it is for now........let you know how i get on. Preventative for damn sure next time TruthOrLie, cant go through this shit again and i damn sure dont wanna be giving these some super powers to come back and haunt me and my friend!!

Thanks again, Peace!!

 

[TruthOrLie]

lol. don't bring em home to your garden either. change clothes, bathe, leave clothes in bag for week outside

 

[Baba Ku]

The best thing at this stage is to kill the crawlers with pyrithrin. It is very safe.
Use it for four days on underside of all leaves and buds.
THEN use the hoover.
At chop, before they are taken off the plant or after, simply take them to the bathroom and wash the buds off. This will get any critters left dead and ease your mind with the spray.
Wash them good...it won't hurt them. Hell it rains and storms outside and they love it.

From now on, start from seed with a preventative of neem oil and an occasional pyrithrin spray. Keep this up until you go into flower and you won't have to worry about it. Even if you do see them in flower, it will not get to an infestation. They were only infested with webs because they went into the flower room already being totally infested.

 

[DocLeaf]

At 6 weeks flowering,, webs and mites can still be controlled with a damp sponge and lemon solution... but much of the damage will have already been done by now if heavily infested

Mainly,, aim to reduce damage on the next crop... harvest and dry plants away from the room.. and clean the room down with disinfectant before the next grow.

All the best

 

[headband 707]

The best thing at this stage is to kill the crawlers with pyrithrin. It is very safe.
Use it for four days on underside of all leaves and buds.
THEN use the hoover.
At chop, before they are taken off the plant or after, simply take them to the bathroom and wash the buds off. This will get any critters left dead and ease your mind with the spray.
Wash them good...it won't hurt them. Hell it rains and storms outside and they love it.

From now on, start from seed with a preventative of neem oil and an occasional pyrithrin spray. Keep this up until you go into flower and you won't have to worry about it. Even if you do see them in flower, it will not get to an infestation. They were only infested with webs because they went into the flower room already being totally infested.

Bro you really need to watch what your saying especially when telling ppl the pesticides are safe as they ARE NOT EVER!!!!!!!

CHRONIC TOXICITY

Absorption of pyrethrum through the stomach and intestines and through the skin is slow. However, humans can absorb pyrethrum more quickly through the lungs during respiration. Response appears to depend on the pyrethrum compound used. Overall, pyrethrins and pyrethroids are of low chronic toxicity to humans and the most common problems in humans have resulted from the allergenic properties of pyrethrum (7). Patch tests for allergic reaction are an important tool in determining an individuals sensitivity to these compounds.

Many of the natural and synthetic compounds can produce skin irritation, itching, pricking sensations and local burning sensations. These symptoms may last for about two days (8). Reproductive Effects

Rabbits that received pyrethrins orally at high doses during the sensitive period of pregnancy had normal litters. A group of rats fed very high levels of pyrethrins daily for three weeks before first mating had litters with weanling weights much lower than normal (4). Overall, pyrethrins appear to have low reproductive toxicity.
Teratogenic Effects

The one rabbit reproduction study performed showed no effect of pyrethrins on development of the offspring (3). More information is needed.
Mutagenic Effects

No information was found.
Carcinogenic Effects

No carcinogenic status has been established for pyrethrins or pyrethroids.
Organ Toxicity

In mammals, tissue storage has not been recorded. At high doses, pyrethrum can be damaging to the central nervous system and the immune system. When the immune system is attacked by pyrethrum, allergies can be worsened.

Animals fed large doses of pyrethrins may experience liver damage. Rats fed pyrethrin at high levels for two years showed no significant effect on survival, but slight, definite damage to the livers was observed (4). Inhalation of high doses of pyrethrum for 30 minutes each day for 31 days caused slight lung irritation in rats and dogs (5). Fate in Humans and Animals

Pyrethrins, pyrethroids, and their metabolites are not known to be stored in the body nor excreted in the milk (2). The urine and feces of people given oral doses of pyrethrum contain chrysanthemumic acid and other metabolites (2, 4). These metabolites are less toxic to mammals than are the parent compounds (3). Pyrethrins I and II are excreted unchanged in the feces (2). Other pyrethrum components undergo rapid destruction and detoxification in the liver and gastrointestinal tract (4).
ECOLOGICAL EFFECTS

Pyrethrin is extremely toxic to aquatic life, such as bluegill and lake trout while it is slightly toxic to bird species, such as mallards. Toxicity increases with higher water temperatures and acidity. Natural pyrethrins are highly fat soluble, but are easily degraded and thus do not accumulate in the body. These compounds are toxic to bees also.
Because pyrethrin-I, pyrethrin-II, and allethrin have multiple sites in their structures that can be readily attacked in biological systems, it is unlikely that they will concentrate in the food chain (2).

 

[DocLeaf]

I agree,,,

quote : 'Pyrethrum was used for centuries as an insecticide , and as a lice remedy in the Middle East ... The flowers should be dried and then crushed and mixed with water. It should be noted that though the pesticide is organic, it can still be harmful to humans'

source : http://en.wikipedia.org/wiki/Pyrethrum#Insecticides

we've used pyrethrum based sprays in veg. ,, and then sprayed clean with water days/weeks later.. but we would not use them in flowering.

 

[Steinawitz]

lol. don't bring em home to your garden either. change clothes, bathe, leave clothes in bag for week outside

You want to make sure to have some sort of decontamination process for you and your clothes when you come home from your friends grow (or any other grow/ and after working outdoors) so that you don't transfer those bastards to your grow.

Edit: Don't overlook shoes.

 

[Baba Ku]

Used properly, pyritherin is quite safe and biodegradable. It also breaks down very fast into a benign substance.

Anyone with a peanut allergy can be killed by peanuts.
And only people who are allergically susceptible to pyritherin should avoid it.

Doc, I know the wiki link says it can still be harmful to humans, but we do know that anyone can edit wiki, and there is nothing that really explains how or why yes?. Yes, we know that folks who are allergic to it can see harm from it.
Many times folks who are a bit overzealous in trying to protect the environment will warn us about just about any substance...especially if it has a chemical sounding name.

I just wanted to add...water is quite toxic and deadly by way of ingestion. Fact.

 

[squarepush3r]

no pest strip

 

[Greenheart]

http://www.greenlightco.com/products/fruittreespray/

70% neem oil
also contains pyritherin in a small percentage

they sell a 70% neem without the pyritherin for $6 dollars less

Both available at lowes or such places.

In addition I started using lavender and other essential oils. Lavender is amazing.

You must spray the TOP and UNDERSIDE of EACH LEAF every 3 Days!!! As well as the soil. After the infestation is over weekly or bi-weekly is fine.

 

[glasseye]

turn the fans on hi and no pest strips

 

[Marshall]

I have heard floramite will break down in 4 weeks. maybe postpone harvest.

How about co2? I know co2 kills certain bugs.

 

[ILoveit]

At this point natural predators would be best, Id get "Phytoseiulus" if I were you.

 

[BOMBAYCAT]

I've had pretty good luck with Rosemary oil. There is a product (something 217) which works good. Me being cheap tried a tea made from Rosemary spice from the grocery store and it seems to be working so far. Good luck as those mites are a bitch.

 

[TruthOrLie]

you should just stay away from the place like he has the plague

 

[igrowkushbitch]

get some azatrol you can spray it up to the last week of flowering

 

[paperchaser825]

If the grow space is sealed, and you have access to CO2 cannisters and you have a means to monitor the CO2 dispersion/grow space....(I could go on...there are many dangers of CO2) then you could theoretically bring your CO2 ppm in your grow room to around 10,000 for a short period of time (I believe around 2 hours max). If you repeat this about 3 or 4 times, every 2 to 3 days, you should effectively kill everything in the 10,000 ppm CO2 atmosphere except the plants. This of course includes your nasty pests....God I hate those things (mites)....