May 13, 2020 at 7:04 pm Reply
Why are my thyme leaves have tiny white spots on? What sickness is this and any means to control it? It’s been the case since last year.May 14, 2020 at 3:07 pm ReplygardencompanionPrivate messageGreenhorn
is it powdery and goes under the leaves? if yes that’s scale insects.May 14, 2020 at 9:02 pm Reply
Hello TamVan, scale insects infection is very probable but could be another thing as well like chlorine in water especially if you’re using tap water for your plants. I’d be more confident giving my opinion if you could post a picture but only if that’s possible…
“You got to be a gardener to appreciate dirty and muddy hands.”May 15, 2020 at 10:47 am Reply
Yes a picture would be very helpful for us to provide a better diagnosis.May 15, 2020 at 8:56 pm Reply
Guys thanks for your replies. See picture below as requested. As you can see, it’s quite dominant and it’s in all the leaves.May 18, 2020 at 7:17 pm Reply
This is absolutely caused by chlorine from the tap water. What’s best is to collect rainwater for the plants or let the water from the faucet sit in for a few hours before watering.
“You got to be a gardener to appreciate dirty and muddy hands.”May 19, 2020 at 11:09 am Reply
I agree with you Carol. This condition is also evident in mint leaves. It doesn’t change the taste of the herbs though or at least what I believe.May 19, 2020 at 12:09 pm ReplyjakipopPrivate messageGreenhorn
Thanks, learning something new here. Same situation for my basil leaves now and using faucet water too. Will follow your adviceMay 20, 2020 at 9:07 pm Reply
Thank you again for all the info guys! I confirm that I use tap water. Honestly it’s inconvenient for me to gather rainwater so I’ll settle with letting tap water sit in prior to using it.May 21, 2020 at 9:06 pm Reply
You’re welcome but I didn’t do much. 😀June 9, 2021 at 1:31 am ReplychrissoPrivate messageGreenhorn
Hi, I also have these white spots and was wondering if you also think this is chlorine in tap water or something else? There are also small black spots mixed in.
June 10, 2021 at 12:06 pm Reply
Hello @chrisso! Yes, I’d say it’s still due to chlorine in tap water. Let the water sit for few hours before watering, this will allow the chlorine content to evaporate.
“You got to be a gardener to appreciate dirty and muddy hands.”June 16, 2021 at 4:22 am Replys.wendyPrivate messageGreenhorn
Hi all, I couldn’t help but notice the discussion. I’m more partial to the idea that it might be some tiny insect, like thrips. They’re so small it’s impossible to see them but they leave that typical white trace where the leaf is hollowed out under the skin. There’s a few pictures out there that might match the ones you posted here.
In any case switching from tap to rainwater will help, so that wasn’t wrong advice 😉
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