What is this deficiency???

Mj19975

Mj19975

Member
Hey I recently updated my grow tent recently. Splitting it into two rooms a flower & veg room.. the flower room has a big fan in there & one air vent open... I think this is mold but I’m not quite sure. I had thirps recently but I got rid of them. I just want someone to confirm is this mold or mildew & if I leave half of my tent open during the day will that be enough ventilation for the plants?
 

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shawnery

shawnery

Well-Known Member
Those white marks aren't spider mite bites. Spider mite bites look more like light shinning through a thin spot in the leaf only millions of them. You need a scope or loop to really see them good but you'll find them on the undersides of the leafs not so much the top.
 
OldMedUser

OldMedUser

Well-Known Member
Mj19975 said:
Spider mites? Would spinosad work or should I get something else
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I would inspect very carefully to make sure it is active mites and not old damage. What did you use to get rid of the thrips? You may have killed off the mites then and those spots are just from before.

I've never used Spinosad but it should do the trick. I'm using Safer's End All concentrate with 10ml/L added neem or canola oil. To get rid of mites you need to spray every 4th day for 4 treatments. Make sure to get every little bit of the plant especially under the leaves.
 
OldMedUser

OldMedUser

Well-Known Member
shawnery said:
Those white marks aren't spider mite bites. Spider mite bites look more like light shinning through a thin spot in the leaf only millions of them. You need a scope or loop to really see them good but you'll find them on the undersides of the leafs not so much the top.
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I beg to differ as I'm playing with mites now and have had thrips a few times as well.

Thrip damage is the one that looks like little windows in the leaves. They eat methodically in little patches and leave shiny, clear patches while mites wander around biting at random and the spots are white dots all over the leaves. One mite will make a bunch of spots on one finger of a leaf in a day.

Either bug can be got rid of with the same sprays and methods so getting rid of them is what needs to be done before flowering 'cause you don't want to spray anything once buds form.
 
Mj19975

Mj19975

Member
OldMedUser said:
I would inspect very carefully to make sure it is active mites and not old damage. What did you use to get rid of the thrips? You may have killed off the mites then and those spots are just from before.

I've never used Spinosad but it should do the trick. I'm using Safer's End All concentrate with 10ml/L added neem or canola oil. To get rid of mites you need to spray every 4th day for 4 treatments. Make sure to get every little bit of the plant especially under the leaves.
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I used the monetary spinosad for a few weeks & it’s starting to appear that I still have some thirps left cause my other plants in my veg room are showing thirps sign.. I’ll start spraying again
 
OldMedUser

OldMedUser

Well-Known Member
Between thrips or mites I'll take thrips any day. Twice I've got rid of them by hand but I was spending 2 hours every 2nd day hunting the little buggers down. Probably half an hour on the off days too.

I've been dealing with these damn mites for over a year now but mainly because I haven't been persistent in keeping to the spray program. Starting new plants soon so will keep them in the spare bedroom upstairs until these are done flowering then nuke the room really good before installing new plants. Fresh coat of paint, seal the cracks in the concrete floor and wash everything that's going to go back into the room.
 
Mj19975

Mj19975

Member
I bought some triple action neem oil today .. how do you recommend I use it?
OldMedUser said:
Between thrips or mites I'll take thrips any day. Twice I've got rid of them by hand but I was spending 2 hours every 2nd day hunting the little buggers down. Probably half an hour on the off days too.

I've been dealing with these damn mites for over a year now but mainly because I haven't been persistent in keeping to the spray program. Starting new plants soon so will keep them in the spare bedroom upstairs until these are done flowering then nuke the room really good before installing new plants. Fresh coat of paint, seal the cracks in the concrete floor and wash everything that's going to go back into the room.
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uhht
 
shawnery

shawnery

Well-Known Member
I've had spider mites three times and once really bad and the leaves never looked like that. I'm sure they can it's just in my limited experience they haven't.
 
B

Beachwalker

Well-Known Member
Mj19975 said:
I had thirps recently but I got rid of them.
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Probably some eggs hatched and their back. After you think they're gone you got a treat for several more weeks or it will keep happening, just make sure it's not old damage that you're looking at for the first time and then start treating, good luck
 
curious2garden

curious2garden

Well-Known Mod
Staff member
Mj19975 said:
I used the monetary spinosad for a few weeks & it’s starting to appear that I still have some thirps left cause my other plants in my veg room are showing thirps sign.. I’ll start spraying again
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If it is thrips they breed in the substrate. So you need a root drench of Monterey Spinosad. I use 15 cc/gallon with 1 drop of Dawn dishwashing liquid as a surfactant. I use the root drench once every three days (I'm soilless in coco), for 3-4 treatments and weekly thereafter. If you're in soil use Spinosad each time you water.
 
OldMedUser

OldMedUser

Well-Known Member
curious2garden said:
If it is thrips they breed in the substrate
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Wrong! They live and breed in the canopy like mites. Some may fall into the soil, like mites, but they don't use the soil for any other part of their life cycle than maybe overwintering outdoors.

Fungus gnats do everything in the soil other than breed. The flying adults do that then the female lays her eggs in the soil to hatch and grow through their various juvenile stages while feeding on roots and screwing up your plants.
 
curious2garden

curious2garden

Well-Known Mod
Staff member
OldMedUser said:
Wrong! They live and breed in the canopy like mites. Some may fall into the soil, like mites, but they don't use the soil for any other part of their life cycle than maybe overwintering outdoors.

Fungus gnats do everything in the soil other than breed. The flying adults do that then the female lays her eggs in the soil to hatch and grow through their various juvenile stages while feeding on roots and screwing up your plants.
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I guess I got jackpot lucky when the Spinosad drench I used got rid of them. Same luck with mites. Got a plant with them whose genetics I needed. Since I run a closed grow room to avoid innoculation with mites I isolated it, cloned it, dipped it and soil drenched with Avid (Abamectin) and cloned out for three generations before flowering for the breeding I needed. Best of luck and hope you manage to get rid of them. They are something I fear.
 
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