HELP identifying pest pls +pic

Johnou833

Active Member
I have a bug problem and im struggling to identify it.

I did think it was thrips but unsure now,

Symptoms: Something literally eating some leafs.
Today I noticed some tiny white dots on top on my coco that resembles eggs perhaps? There's 100 of them. :(
There is a very small patch of silver slime on a leaf that resembles thrips perhaps?
If I shake the plant nothing flies off, I've looked on top and unde the leafs I can see nothing.

Should I purchase Gnatoff or pest off or some neem oil? (Definetly isnt slugs)

Any help much appreciated.

Here's a picture of my leaf:
 

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Johnou833

Active Member
24 views and no responses :( :( I really want to know what pests eat leaf other than caterpillas and snails, Cant find info on this anywhere. Thrips, fungus gnats or white fly? or something else perhaps?
 

DannyGreenEyes

Well-Known Member
Looks like they might be White Mites, there are two varieties that eat larger plants (most only eat simple plant life, like algae). You can find info on them here http://entomology.ifas.ufl.edu/creatures/orn/broad_mite.htm
http://entomology.ifas.ufl.edu/creatures/orn/cyclamen_mite.htm

Here's a link to the main page of that site. You may want to book mark it for later use. It has a lot of valuable info on a lot of different pests. http://entomology.ifas.ufl.edu/creatures/

The only way to know for sure is to put one under a microscope that's at least 60x in strength. You can find one for around $10 at Radio Shack. However if they are White Mites they'll be too fast to look at one on a leaf or on the rim of the planter. What I did was use a piece of tape to catch one. I found one on the rim of a planter and gently pressed the tape down on top of it. It's not hard once you find one.

The Lady Bugs that I keep in there were keeping them off the plants, but if you don't have Lady Bugs it will probably be easier to find them on the underside of a leaf. You'll know it's them, they look like a piece of perlite dust that moves.

Once you've identified it, if it is a White Mite there are a lot of different ways to kill them. I suggest suffocants like Mite X or Neem Oil. You'll want to treat no less than 3 times, and the treatments should be 4 to 5 days apart.

Also, if you read up on Spider Mites on the site I posted a link for above, and click on the first link at the bottom of the page, you'll see that they say "Petroleum oil provides some ovicidal activity against spider mite eggs." which means it kills the eggs. It's the only thing that I know of that will.

I recently found a suffocant that's petroleum based, and it's made by Bonide which is the maker of the Mite X. They're a large & well respected company. I suggest that if it's Mites, you use this in conjunction with something else. Spray the plant including the underside of leaves, the soil, the planter, the drainage tray, the carpet, the mylar, and anything else that's anywhere near the plants. And since it's an oil based product you'll want to spray when the lights are off.

Also if it's White Mites try to lower the humidity, that will slow them down some. And whatever you use with the Petroleum product, change it on every treatment. For example.... 1st treatment = Neem Oil + Petroleum product, 2nd treatment = Mite X + Petroleum product, 3rd treatment = Fungicide with Neem Oil + Petroleum product.

Here are the links

http://www.bonideproducts.com/lbonide/b ... s/l214.pdf
http://www.arbico-organics.com/1274101.html
http://www.biconet.com/botanicals/ashdso.html
http://shop.horticultureguy.com/all-sea ... u-385.html
http://www.millernurseries.com/cart.php ... tail&p=672
http://www.arbico-organics.com/1274104.html
http://www.millernurseries.com/cart.php ... tail&p=671
http://www.plantitearth.com/pest-contro ... spray.aspx
http://www.gardeningthings.com/sm/cimpu ... id=1.21.54

You may be able to also find it at your local nursery or a hardware store that has a lawn & garden department.

Good luck.
 

Johnou833

Active Member
Thanks for the info Danny, I will be taking actions against mites with some neem oil to begin with as this will hopefully kill thrips too if they're in my garden?
 

DannyGreenEyes

Well-Known Member
Thanks for the info Danny, I will be taking actions against mites with some neem oil to begin with as this will hopefully kill thrips too if they're in my garden?
Neem oil is a good start, but thrips don't do that kind of damage.

The White Mite can't bite through a mature cell wall (the skin) of your mature leaves. So it first injects a toxin to break down the cell membranes. After they finish feeding the toxin keeps working until it exhausts itself. That's what causes the damage that looks like somethings been chewing on your leaves. Here are some pics of the damage they did before I got on top of them.

You may also notice some leaves that are twisted or wavy for some unexplained reason. That's them too. I don't know of any other bug that does this type of damage.

But to be on the safe side, get yourself a microscope and make sure one way or the other. If it's White Mites, they muliply just as fast as Spider Mites and can kill your plant even quicker because of the toxins.

Whether it's Mites, Thrips, White Flies, or something else, get yourself some of the petroleum based products. They'll kill the eggs of any pest and give you the upper hand. Plus it's cheap, less than $10 a bottle. And it's organic and can be used right up until harvesting day.

When you spray with the neem, you should also spray with the petroleum. And plan on treating again 5 days later with petroleum + something else (not the neem again, mites can become immune).

The pics were taken with a cheap cam, sorry the quality's so bad. And I was also dealing with nute burns & a pH fluctuation at the time, so try to ignore most of the twisting & brown spots. The holes & torn edges are what I'm trying to show you.

Goog luck
 

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Johnou833

Active Member
Thanks Danny +rep, I think your definetly right, I sat in examing plants today and eventually found a tiny white worm looking 'mite'? on my leaf ( literally 0.5mm, v small), it eventually moved turning around like a worm.. Also spotted small black dots near it, I will first absolutly drench them with neem oil then 2 days later some petroleum based spray? then another treatment of petroleum spray a week later?

Thanks.

Quick question, Speckeld white dots ontop of coco could possibly be mould as its been wet for a good week now (just started bottom feeding) could this be mite eggs or just plain old mould at a young stage?
 

DannyGreenEyes

Well-Known Member
Thanks Danny +rep, I think your definetly right, I sat in examing plants today and eventually found a tiny white worm looking 'mite'? on my leaf ( literally 0.5mm, v small), it eventually moved turning around like a worm.. Also spotted small black dots near it, I will first absolutly drench them with neem oil then 2 days later some petroleum based spray? then another treatment of petroleum spray a week later?

Thanks.

Quick question, Speckeld white dots ontop of coco could possibly be mould as its been wet for a good week now (just started bottom feeding) could this be mite eggs or just plain old mould at a young stage?
It's sounding like you have more than 1 infestation. Thrips are long & slender, mites are more roundish. The worm looking thing you described sounds like a Thrip, and they leave white dots on the leaves when they feed.

White Mites would look more like a white spec of dust to the human eye. Like a small piece of perlite dust that moves. You definately have damage that looks like White Mite damage though.

The black dots sound like they could be spider mites, or some other type of mite. Did the black dots move? And have you seen anything that might resemble a very small web?

You can't see eggs without a microscope. You can't see Mite Larvae without a microscope either, but you can see some Thrip larvae without a microscope. That's what the worm sounds like to me. Could be white flies too though especially if the white dots rub off. White fly shit looks a lot like Thrip damage.

First thing you have to do if you haven't already. Buy some knee hi stockings and put them over your intake & exhaust. It's not as good as a no-thrip screen, but it will work in a pinch.

You should definately use a petroleum product, here's Bonides dealer finder. Check your zip and you might find a place near you that sells it. I'd suggest getting the bottle of concentrate, sounds like you're going to need to treat more than once. http://www.bonide.com/dealer_locator/index.html

My advice, treat right away with just the petroleum suffocant. 4 or 5 days later treat again with the petroleum suffocant + something else (neem oil is a good idea). 4 or 5 days later use the petroleum suffocant again but change up what you use with it (Mite X from Bonide is pretty good). After 3 treatments, if you're carefull to spray everything (leaves top & bottom, soil, planters, run off trays, floor/rug, walls, mylar, ceiling, fans...... Everything every treatment) you should be OK, but if you have anything left after 3 treatments, I'd give her a 4th treatment 4 or 5 days later with whatever you have left, just to be safe.

Spider Mites hate humidity & Broad Mites love it, so I don't know what to tell you to do with the humidity.

If the infestation is bad, if it's on a lot of your leaves, you may also want to pick up some lady bugs from your grow store or local nursery. They'll help get the numbers down for you and help you finish off all but the last infestation.

If you want to use predatory bugs all the way and you still have a week or two left of veg, you might want to pick up some predatory mites. I'm not sure if they'll kill thrips or white flies though. Pirate bugs may be a better choice, they'll eat any pest. But if you use Pirate Bugs you can't spray or use lady bugs.

Personally I'd go with the spray & lady bugs. Just don't spray the lady bugs directly with the Neem. They should be ok with everything else.

Good luck, hope you end up on top of this fight.
 

Johnou833

Active Member
Thanks for the info, I fear there is more than 1 infestation too :( I actually live in the uk so a lot of these products will be unavailable to me, Tomorrow I will go to the garden centre and buy some petroleum based spray and some neem oil and possibly some 'pest off' hydroponics spray too, I am actually growing in a tent and the vents are are netted already, the outtake is a carbon filter with ruck fan.

Are the smoke bombs not a good idea, I realise this should be a last measure but it is getting pretty bad.
 

DannyGreenEyes

Well-Known Member
Thanks for the info, I fear there is more than 1 infestation too :( I actually live in the uk so a lot of these products will be unavailable to me, Tomorrow I will go to the garden centre and buy some petroleum based spray and some neem oil and possibly some 'pest off' hydroponics spray too, I am actually growing in a tent and the vents are are netted already, the outtake is a carbon filter with ruck fan.

Are the smoke bombs not a good idea, I realise this should be a last measure but it is getting pretty bad.
If you're in an emergency statis bombs are a good way to go. Pest strips with pesticides are also very usefull. And there are many pesticides to choose from as well.

Mites develope immunities very quickly, and you don't know what immunities your mites are already carrying. So a multiple prong approach is recommended.

Get several products, and use them in conjunction with one another. If you're going to spary with a pesticide, spray every 4 to 5 days and use something different each time. Using sprays, fly strips, and bombs in conjunction with one another is well advised.

Treat no less than 3 times and seperate your treatments by 4 or 5 days. Get a microscope that's at least 60x in strength ($10 at Radio Shack if you have them) and check the tops & bottoms of leaves for eggs after the 3rd treatment. If you see eggs, treat again in another 5 days. If you don't see eggs, you may want to treat again in 5 days to be safe.

You can get All Seasons Sptray Oil (petroleum based) from the bonide web site www.bonide.com and I'm pretty sure they'll deliver outside the US as long as local laws don't prohibit it.

Are your screens no-thrip screens? You have to get a screen that's 150 micron to be effective, a regular screen wont cut it. These things are microscopic.

Don't count on the fan and carbon filter to keep these pests out either. Get a good screen on your exhaust or on cold days you're especially vunerable. These buggers will follow the heat to it's source.

And don't think the wind from the fan will keep them out. If you've ever seen a bug hang on to your windshield when you're doing 40 mph, you'll understand what I"m saying.

Do you're best to get yourself a petroleum based product, it's the only thing that will kill the eggs. If Bonide wont deliver and you can't find any locally, you might try vaseline (petroleum jelly). Just make sure you get all of it off after you treat, the oil will burn your plants under the lights. Remember, petroleum is the only thing that will kill any of the eggs.

And with any petroleum jelly, make sure you water a few hours before treating, and always treat 1 leaf first to see how your plant reacts before treating the rest of the plant.
 

Johnou833

Active Member
Danny, your a star. Thanks very much for the information, greatly appreciated. I will giver this my best shot and let you know how I get on soon.

Thanks.
 

DannyGreenEyes

Well-Known Member
Not a problem, wish someone was there when I had my triple infestation to give advice.

By the way, the best defense are lady bugs, 500 per plant, 750 as they grow over 2ft, 1,000 as they grow over 4ft.
Lady Bugs will not kill off their food supply all together, but pests wont nest when predators are present. Result = you will never have to deal with more than 1 infestation at a time (lady bugs wont kill off their food supply all toghether, but they will keep them on the brink of extinction) & you will never have to deal with a bad infestation at any one given time.

Draw Backs, you will have to finish off any bug that appears with a suffocant (organic oil spray that suffocates the pest but doesn't bother the lady bug), you will not be able to use insecticides around lady bugs, and Lady Bugs can be quite the pain in the but. They're worth it though for the peace of mind of knowing this will never happen again.

It sounds like it's too late to introduce lady bugs to help with the current situation.

Be carefull with those pesticides. Try to treat when everyone is out of the house & try to wear a particle mask.

Good luck, and may all your green girls become monsters :D
 
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