I need help identifying white marks on my plants PLEASE!!

Over the last week or so I have noticed this white start to appear on my plants and its getting worse I've given my plants cal mag thinking they needed calcium but idk what can help them. Here are some pictures if anyone can help identify my culprit

Imo, it looks like thrip damage. Look for insects, especially on the bottom side of leaves.

I'm with @Hollatchaboy, thrips. Get some ladybugs

Citric acid based spray.

xtsho said:

Citric acid based spray.

Click to expand...

That's usually my go to.

I use Spinosad as long as I'm not in flower, otherwise I'll fog them with Lost Coast Plant Therapy spray.

One application of spinosad solution 100% knocks them out even at recommended normal strength within 48 hours.. No repeat application necessary. Understand though more research is needed but Spinosad is just a bacterium that was found in rum barrels. Not known how safe it really is... One reason I don't spray it on buds.

Spray bottoms of leaves before tops, do not skip a leaf, if you have too much area to spray then you need to look into a fogger to get more thorough coverage.

Look into natural Preventatives, one example that has worked for me really well and is natural is this in a bi-weekly (2 weeks) tea brew.


I use all 3 of these in my tea recipe, I add everything into 1 bucket and brew for 24 hours. I haven't seen a thrip or bug in general other than spiders in months.. Thrips are bad where I live in MI they will find their way into even sealed grows.. They're basically a flying insect small enough to get through common household screens etc..

Thank you so much this is beyond helpful! I have seen thrips but they are so small I thought they were gone...I'm buying this stuff right now!