Any Thirp Remedies When in Flower?

So I discovered I had a Thirp problem in my outdoor flowering grow yesterday and have been doing some research in getting rid of them (or at least minimizing their presence).

All of the recommendations (aside from Sinobad, which isn’t sold in Canada) cannot be used during flower. What options am I left with? I’m hesitant to use hydrogen peroxide. All I can think of now is just spraying off with a hose, clearing the area of weeds and minor dead plant debris, and mixing in some pyrethrin powder in the soil to nuke some that may be in there.

What do you use to get rid of (or minimize) Thirps while in the middle of flower development???

Maybe this idk https://doctorzymes.com/pesticide-free-insecticide.php

I use it for everything I here 4 oz for gal but I go like 4 oz for half gal

Lizard0420 said:

I use it for everything I here 4 oz for gal but I go like 4 oz for half gal

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Thanks. Does it do well beyond preventative maintenance? Like if you have a small outbreak?

Citric acid is the active ingredient in Dr Zymes. It can be purchased on it's own and mixed with water to make the same spray for a fraction of the cost.

Good information

minute pirate bugs work as a natural predator solution.

@xtsho if mixing just citrus acid what is the measurement? I just checked and that is lot cheaper

Radicle420 said:

minute pirate bugs work as a natural predator solution.

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To the garden center

Lizard0420 said:

@xtsho if mixing just citrus acid what is the measurement? I just checked and that is lot cheaper

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More importantly does citric acid screw the flowers and buds up??

The only thing that I have seen it do is turn the pistils brown if sprayed at too high of concentration and/or while it is too sunny.

I just had to deal with thrips in week 5 of flower. I used a product called Flying Skull Nukem. So far it seems to have worked great, but as stated by Radicle420 it will turn pistils brown. New white ones will grow back though so don't worry about that.

xtsho said:

Citric acid is the active ingredient in Dr Zymes. It can be purchased on it's own and mixed with water to make the same spray for a fraction of the cost.

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Isn't that fermented citric acid? I'm not sure the difference so that's why I ask. I have a bunch of it we use for canning, so it'd be nice to make Dr Zymes at home.

Use Athena. Not cheap, but trust the process. Also look into their sticky traps. Formulated (the blue ones) for thrips.


we use the IPM and sticky traps at work and we get rid of our pests when they come up man. Try these two things

Weedoguido said:

I just had to deal with thrips in week 5 of flower. I used a product called Flying Skull Nukem. So far it seems to have worked great, but as stated by Radicle420 it will turn pistils brown. New white ones will grow back though so don't worry about that.

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Flying Skull Nukem is neem based. Heard mixed reviews about neem.

Lizard0420 said:

@xtsho if mixing just citrus acid what is the measurement? I just checked and that is lot cheaper

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2-2.5 teaspoons per quart. Start low. It can cause phytotoxicity and needs to be sprayed with the lights off and allowed to dry before turning the lights back on or sprayed in the evening if used outdoors. It's a contact killer and may not kill all the eggs so will need a follow up spray after a few days.

Weedoguido said:

I just had to deal with thrips in week 5 of flower. I used a product called Flying Skull Nukem. So far it seems to have worked great, but as stated by Radicle420 it will turn pistils brown. New white ones will grow back though so don't worry about that.

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The active ingredient in NukEm is citric acid.

Nope_49595933949 said:

Isn't that fermented citric acid? I'm not sure the difference so that's why I ask. I have a bunch of it we use for canning, so it'd be nice to make Dr Zymes at home.

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Most citric acid is produced using a fermentation process. The same food grade citric acid anyone can buy is the same as what is used in commercial citric acid based products.

bc_southbuds said:

Flying Skull Nukem is neem based. Heard mixed reviews about neem.

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No it isn't.

xtsho said:

No it isn't.

View attachment 5174412

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Ah, thanks.
…Oh google.

xtsho said:

2-2.5 teaspoons per quart. Start low. It can cause phytotoxicity and needs to be sprayed with the lights off and allowed to dry before turning the lights back on or sprayed in the evening if used outdoors. It's a contact killer and may not kill all the eggs so will need a follow up spray after a few days.



The active ingredient in NukEm is citric acid.



Most citric acid is produced using a fermentation process. The same food grade citric acid anyone can buy is the same as what is used in commercial citric acid based products.

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Guessing you’d want to measure the Ph before spraying citric acid to be sure. Wonder what the sweet spot Ph is

Dr says ph then and mix then leave alone