Any idea what is causing this?

420budz · Jun 27, 2019

So I'm not quite sure what's going on here. They are spotting really bad. There are leaves that are completely drying out. The older leaves are the ones with all the spots. New growth seems ok until then they also spot. They're in fox farm ocean. I give them blue planet grow. Any help is appreciated.

Dirtbag · Jun 27, 2019

Check them very closely for insects. Could potentially be spider mite damage. But it also looks like you might have an overfeeding/lockout issue there too from the burnt tips and yellow leaf edges.

420budz · Jun 27, 2019

@Dirtbag I have been fighting off thrips. I had stopped giving them any nutes for a few months. I figured I had overloaded them so I went to straight water but just started the grow again cause I thought since just water fix the issue that maybe they didnt get enough nutes.

Jimster · Jun 28, 2019

It looks like insect damage, although it could be just showing up from weeks ago. Spider mites are bastards that cause a ton of unseen damage for being so tiny... barely visible. A few weeks after killing them off, I noticed similar markings on some leaves, usually the older ones. It takes the leaves that long to respond to the damage. If not spider mites, some other type of bug. Here is a leaf that is mite free, but they had their way a month earlier and finally I had to remove it. Regarding the nutes… go easy on them until you get the issue worked out as FF soils are pretty hot already and any additions to it can easily cause nutrient overload and the issues that go with it. The damage can mimic some insect damage (such as dried leaf tips and necrotic leaves), so you could have a few things going on. The biggest issue looks like bugs to me, though.

420budz · Jun 28, 2019

@Jimster I will try to take care of the bug damage first. I've never had to fight off mites. The thrips have been the biggest pain in the ass. I can keep them at bay but cant seem to completely get rid of them. Thank you so much for the info.

Jimster · Jun 28, 2019

420budz said:
@Jimster I will try to take care of the bug damage first. I've never had to fight off mites. The thrips have been the biggest pain in the ass. I can keep them at bay but cant seem to completely get rid of them. Thank you so much for the info.

I've never had to deal with thrips… I wouldn't know one if it bit e in the ass, but I wasn't familiar with spider mites either after growing for 35+ years. A buddy gave me a few clones that had a few mite clones on it as well... you see the damage. It wasn't even a bad infestation, although some plants were affected more than others. Malawi and Jack Herer weren't bothered, but some older strains were damaged. Good luck... Get Them Bugs!!

Dirtbag · Jun 28, 2019

Thrips are easy to wipe out. 2 applications of monterrey garden insect spray with spinosad will nuke em. Spider mites on the other hand can be difficult.

Beachwalker · Jun 28, 2019

420budz said:
@Jimster I will try to take care of the bug damage first. I've never had to fight off mites. The thrips have been the biggest pain in the ass. I can keep them at bay but cant seem to completely get rid of them. Thank you so much for the info.

I would begin feeding the plant properly to strengthen it while I simultaneously begin treating it for thrips and mites with a product designed to kill both; and you will need a second product to alternate applications with, and I would start this treatment quickly!

420budz · Jun 28, 2019

Jimster said:
I've never had to deal with thrips… I wouldn't know one if it bit e in the ass, but I wasn't familiar with spider mites either after growing for 35+ years. A buddy gave me a few clones that had a few mite clones on it as well... you see the damage. It wasn't even a bad infestation, although some plants were affected more than others. Malawi and Jack Herer weren't bothered, but some older strains were damaged. Good luck... Get Them Bugs!!

Thank you for the info. I'll get on it asap.

420budz · Jun 28, 2019

Dirtbag said:
Thrips are easy to wipe out. 2 applications of monterrey garden insect spray with spinosad will nuke em. Spider mites on the other hand can be difficult.

Nice! I'll get on it right away. Thank you.

420budz · Jun 28, 2019

Beachwalker said:
I would begin feeding the plant properly to strengthen it while I simultaneously begin treating it for thrips and mites with a product designed to kill both; and you will need a second product to alternate applications with, and I would start this treatment quickly!

Thank you so much.

Any idea what is causing this?

Any idea what is causing this?

420budz

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Any idea what is causing this?

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