White dots in leaves.

elfo777

Well-Known Member
Hello

I noticed this in one of my seedlings. Doesn't seem like a big deal, but I don't know if it could be some kind of bug? Looks like spider mites?

Sorry for pic quality.


thumbnail_WP_20160930_001.jpg
 

cat of curiosity

Well-Known Member
Hello

I noticed this in one of my seedlings. Doesn't seem like a big deal, but I don't know if it could be some kind of bug? Looks like spider mites?

Sorry for pic quality.


View attachment 3793049
looks like spider mites or aphids. probably mites, they are horrible about not following hitchhiking laws, and travel with the dirt until some poor, innocent little plant presents them an opportunity to attack and assimilate.

spider mites = the borg
 

elfo777

Well-Known Member
I sprayed the two affected leaves with pyrethrin. If it keeps going on I will cut the leaves. All my other plants look ok (1 month old) no signs of anything.

My soil is ammended with neem cake. Seems it wasn't enough :I
 

cat of curiosity

Well-Known Member
I sprayed the two affected leaves with pyrethrin. If it keeps going on I will cut the leaves. All my other plants look ok (1 month old) no signs of anything.

My soil is ammended with neem cake. Seems it wasn't enough :I
you can top dress with diatomaceous earth, that should keep any more from doing the dawn of the dead routine and rising up from the ground to eat your plants' brains...

i've never used the neem cakes, but i've used the oil. it knocked them back, but didn't fix the problem. i hope the cakes help kick their ass for you! ;)
 
You can always try shaking your plant with a white piece of paper in your hand to throw the thrips off and on to the paper to check what's there. But ya it looks like thrips issues.

Beneficial insects, insecticidal soaps, and biocides can work well to fix it. There's a soil fungus Entomophthora thripidum that manages thrips passively.

Subsets of the thrips population will hide in small crevices that may not be affected by whatever treatment you use, so stay vigilant bongsmilie
 

Jimmy Sparkle

Well-Known Member
Those sons of bitches got me this year real bad. Indoor grow also. My lilacs out back were inundated with thrips and some got in. Never before for me either.
 

slapmehard

Member
Could it be leaf miners? They typically bore into leaves and eat them from the inside out.
generally leaf miner damage is in between the leaf layers and is more trail like not spotty like the photo shows

it looks very much like thrip damage as but suggested shake the plant over a white drop cloth they will fall off very easily and you can make a positive id since mite damage is very similar.
dusting the area with de will help for either mite or thrips.
 

Shakedown Street

New Member
Could be wrong but I want to say spider mites if they won't shake off! They leave behind the little white yellow dots, and a lot mistake that for a nutritional deficiency. Even if this isn't a spider mite problem, some preventative maintenance can't steer you wrong; so throw some more mites on there. There's actually this beneficial mite called Phytoseiulus that eat spider mites and a few other species for breakfast, and if you don't want to use toxic insecticide bombs this is the way to go. I am not a fan of ladybugs or neem oil, ladybugs make a huge mess and neem oil is real sticky and messes up your plant. You can buy packs of these spider mite predators online and a real good brand I have used is "Green Methods" small packs. It may not be, but if you do nothing it could overtake your plants if that is truly a spider mite infestation; check out those suckers working below:

 
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Shakedown Street

New Member
Or even better if you don't know what the pests are, a pirate bug that will eat anything not just spider mites would do the trick. You can find em online as well, they go right to work. The picture is blown up large, they're only 2mm long:

 

cindysid

Well-Known Member
I use spinosad as a preventative since my last grow which became inundated with thrips. So far so good. I will update when I'm at the 5th week of flower in two weeks. That's when the critters always show up.
 
A quick note on using beneficial bugs, once you start flowering it's too late to use them unless you want dead bugs, feces, and eggs in your bud! :weed:

Luckily you can keep your plants in veg for as long as you need to deal with your mite problem before you kick them into flowering, I'd say they take an extra three weeks to all die off including the eggs after not adding anymore in.
 

elfo777

Well-Known Member
After using pyrehtrin I haven't seen any signs of bug expansion. Also, it's a very small plant and very small spots (1cm) so im not too worried. It wasn't aphids because when shaking nothing happens. It's like the white stains are attached to the plant. Leaf miners are common here so that's my bet. Nothing to worry about. Using bugs is very drastic at this stage. Thanks everyone for the help, no further problems atm :)
 

Roger A. Shrubber

Well-Known Member
I use spinosad as a preventative since my last grow which became inundated with thrips. So far so good. I will update when I'm at the 5th week of flower in two weeks. That's when the critters always show up.
i like spinosad as well, capt. jack's dead bug brew is the shit, never had to apply more than twice to get rid of anything so far
 
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