white spots underneath my leaves. No bugs underneath my leaves

Tender Bias · Oct 17, 2019

Hello,

I am currently at day 100 since I placed the seed in the soil or 33 days into flowering. I have had these white spots on multiple leaves from different plants. I don't know what they are. I looked under the leaves but I did not find any bugs. What are these spots and should I be concerned?

https://imgur.com/a/2jKFwSD

piratebug · Oct 18, 2019

It definitely looks like the early stages of some type of bug damage to me, its either thrips or mites, but it looks more like thrips to me! Also, what are you exactly using to see whatever is attaching your plants?

Renfro · Oct 18, 2019

I second the thrips.

Renfro · Oct 18, 2019

I would get some sticky traps set in the soil and up by the light just to see what they catch.

westcoast420 · Oct 18, 2019

Yup thrips, look on the stems and stalks and by the nodes for them, they move fast so not super easy to spot till you know what they look like. 2nd the sticky strips.

ToFarGone · Oct 18, 2019

So he’s 4 weeks into flower. What you guys recommend for treatment

KryptoBud · Oct 18, 2019

ToFarGone said:
So he’s 4 weeks into flower. What you guys recommend for treatment

Monterey garden insect spray or something else with spinosad in it

nurrgle · Oct 19, 2019

Thrips first sure. If your 4 weeks into flower I don’t think they will be that big of a problem by the time you harvest.

Monterrey Garden Spray will take care of them quickly, I actually have in my preventables rotation. However, I wouldn’t want to spray it on any bud sites, and discontinue use once I flip the room.

westcoast420 · Oct 19, 2019

Thrips are more of an annoyance than anything. But if they do start getting out of control look for a pesticide that works on thrips. Im pretty sure pyrithrins actively works on thrips.

Tender Bias · Oct 20, 2019

piratebug said:
It definitely looks like the early stages of some type of bug damage to me, its either thrips or mites, but it looks more like thrips to me! Also, what are you exactly using to see whatever is attaching your plants?

pipe cleaners attached from the tent poles to the plant

Tender Bias · Oct 20, 2019

i snapped some photos with my smartphone mounted on top of a 420 magiscope. Are these thrips?

https://imgur.com/a/OB4hfSu

Tender Bias · Oct 20, 2019

are these thrips?

Tender Bias · Oct 20, 2019

are these thrips (10 file upload attachment limit)?

KryptoBud · Oct 20, 2019

Tender Bias said:
are these thrips (10 file upload attachment limit)?

yes they are, at the very least get yourself some sticky traps

Tender Bias · Oct 20, 2019

KryptoBud said:
yes they are, at the very least get yourself some sticky traps

i am going to buy some sticky traps. I laready have a 6 in oscillating fan above the plants. I will add a second oscillating fan above the medium. I am thinking of getting Spinosad and using a hand pressured sprayer to spray only the soil. I'll look into beneficials like Neoseiulus Amblyseius Cucumeri, Amblyseius swirskii. Should I do anything else? Is it a lost cause at this point?

Tender Bias · Oct 20, 2019

is it possible to purchase monterey garden insect spray in Vancouver, BC, Canada? This product and other Spinosad products are not on sale on Amazon Canada. I also cannot find any beneficials like Neoseiulus Amblyseius Cucumeri, Amblyseius swirskii for sale on amazon Canada.How do British Columbians deal with thrips in their indoor garden. Seeing as I am already 4 weeks into flower, can I spray insecticidal soap directly onto the grow medium (not on the buds)?

rustyshaclkferd · Oct 20, 2019

You got Western flower thrips... could use amblysiues swirski (bugs) or venerate will work fineto control them till you finish and clean up proper

Tender Bias · Oct 20, 2019

Thanks! I noticed that there are some adults (brown/blackish with wings) in my tent. Is it possible to purchase these beneficial bugs (amblysiues swirski (bugs) or venerate ) from amazon canada . I am located near vancouver, bc, canada?

Axion42 · Oct 20, 2019

My last grow I had thrips, I thought I had got rid of them before flower and didnt notice them back until week 3 of flower. They multiply very quickly and they will hurt your yield by not allowing your buds to finish. Spinosad worked for me but I didnt get rid of them completely until after the harvest of that crop. Good luck to ya.

Tender Bias · Oct 21, 2019

I did find holes in the leaves but it may be unrelated. I am leaning towards the beneficials route because I can't spray the leaves at this point. I am not in veg, I am 37 days into flower. I am considering to order Cucumeris to apply to the leaves on thursday (40 days into flower), use sticky cards to trap adults with wings, add a second fan near the medium to prevent reproduction. I will also add shallow basins of water spiked with a few drops of soap and an aromatic scent (vanilla extract) to drown the adults. It will come out to either 60 CAD (shipping included) or 67$ CAD (includes Hypoaspis (Stratiolaelaps) that can be applied to the soil to consume thrips pupae) from the buglady.ca

white spots underneath my leaves. No bugs underneath my leaves

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