THRIP'S I hate'em you hate'em we all hate'em.

bossman88188

Well-Known Member
I was doing some reading and came across this.
Thought I would share.
THRIP INFESTATION - WHAT IT IS:

The bug is most likely called "thrips", and it's a new variety in the U.S. Just like our new ladybugs, and the Japanese Beetles, we're basically getting new bugs from all over the world, and these little thrips are probably as bad or even worse than spidermites for indoor gardeners! The good news is that it should be an easy fix.

THRIP FACTS:

Thrips go through three stages of life.​
1. The first is in the soil as little worms (larvae) eating the roots. They can't be killed by sprays at this stage because they're sheltered deep in the soil.

2. The second stage of a thrips life cycle is as a fast crawling bug that is so tiny (1/16" to 1/8" long) they're almost impossible to see. They look kind of like a miniture silverfish at this stage, and they suck the juice out of the bottoms of the leaves, and the newest most delicate growth on the plant, including the flowers and fruits. Sprays aren't very effective on them at this stage due to the fact that the thrips can hide in that new growth at the top of the plant.

3. The last stage of the thrips life is as a flying insect. They look almost exactly like a fungus gnat and they're the same little guys that are buzzing around your head outside in the summer. They don't do any real damage at this stage, but they lay new eggs, perpetuating the problem.
SUCCESSFUL TREATEMENTS:

Update: We have found a new easier-to-use approach to getting rid of thrips. It's called Microbe-Lift BMC. It's completely safe for us and the plants, and although it's made for mosquito's, it works great to get gnats or thrips because they all share the same kind of larval stage in their development. The sprays will get the bugs on the upper part of the plants, but won't get the larval stage down in the soil. This is where the Microbe-Lift BMC will drench the soil, and get the insects as they hatch. We've got a big greenhouse in our retail store where we sell bonsai trees, and have a bunch of hydroponics systems running for display purposes. We had a non-stop infestation of thrips until we started using the Microbe-Lift BMC, and since then we've been free and clear of the little buggers.
1. Our first fix uses "Mosquito Dunks". They're made for standing water situations, and are a bacterial inoculant. They're perfect for eliminating thrips because this particular bacteria eats anything in a larval stage, so by soaking a dunk in water, then using that water to thoroughly water your plants, with just a few applications you can rid yourself of the thrips.
The dunks are held together with a paper fiber that won't break down, so you'd probably want to put a dunk or two into a nylon sock, then soak that in water for several days to allow the bacteria to come to life before using about half of that water to water your plants. Then you can fill the bucket back up with water (leaving the same dunks in the water), and start a cycle of doing this to water your plants. It may take a couple weeks, but you'll eventually win. Replace the Mosquito Dunk in your soak about every 30 days.

If you're gardening using hydroponics, place an appropriate portion of a Mosquito Dunk into a nylon sock (helps prevent solid debris) and drop into the reservoir. If your infestation is overwhelming, after 24 hours, knead the Dunk slightly to help intensify bacteria saturation - this will shorten the lifespan of the Dunk, but make it more concentrated. Find Mosquito Dunks here

2. NEW! In addition to the use of Mosquito Dunks to control thrips, we've found a new and more effective way to keep these little buggers under wraps. This new product is called Monterey Garden Spray which is a harmless OMRI-listed bacterial product like the mosquito dunks.
Monterey Garden Spray is used as a foliar spray to kill the eggs which are laid on the bottoms of leaves and on the stems. With only one or two applications of the foliar spray you can virtually eliminate your active thrip infestation.
With the continued use of the mosquito dunks for a short period, you can keep the problem from repeating itself. Find Monterey Garden Spray here

Monterey Garden Spray is for spraying the plant, and is not intended for a root soak or in hydroponics systems reservoirs. Use Mosquito Dunks for the hydroponics reservoir (in a nylon), or to be watered into soil.

SPEED UP THE PROCESS:
Use Blue Sticky Traps along with either method for an effective way to help control thrips (or many other pests) as every adult insect that gets caught, can't lay eggs! They are also a great indicator of new insect infiltrations, so keep one up at all times. Find Blue Sticky Traps here
 

jnuggs

Well-Known Member
THANK YOU. I'm not positive if I have thrips, but my soil is INFESTED with little white bugs that HAUL some serious ass around the pots! and when I say infested, I mean you pick up a pinch of soil, and have 20 of them. I already purchased mosquito dunks last year(never used) and am ready to give this a try. I appreciate you taking the time to share this information. +
 

farmdreads

Member
Is it safe to use mosquito dunks all the way through flowering? I am assuming that since it is a natural bacteria that it is safe to constantly use. They are inexpensive and easy to keep in the water reservoir. Any thoughts on using in all stages?
 

TeLe44

Member
Im 100 percent sure i have thrips and unfortunately i am 7 to 10 days from harvest. Is there anything i can do to help a little bit while im in the last week or so??
My girls havent been effected to bad, at first i thought it might have been a magnesium deficiency but i now know i was wrong.
Im sure i would have found them earlier but it must still be a small infest. If theres anything i can do to help stop them without hurting my buds and such please let me know.
Thanks
Thanks as well, for the info above. much appreciated!!
 

Jack in the Bud

Active Member
I just had my first experience with thrips. They were causing silvery white spots on my leaves. I sprayed with a mix of 10 ml of Malathion / gallon of water. It's been about 8 days since I sprayed for them and I haven't seen any more live ones. Don't use Malathion if you are with in 2 weeks of harvest.

Jack
 

Jack in the Bud

Active Member
Im 100 percent sure i have thrips and unfortunately i am 7 to 10 days from harvest. Is there anything i can do to help a little bit while im in the last week or so??
My girls havent been effected to bad, at first i thought it might have been a magnesium deficiency but i now know i was wrong.
Im sure i would have found them earlier but it must still be a small infest. If theres anything i can do to help stop them without hurting my buds and such please let me know.
Thanks
Thanks as well, for the info above. much appreciated!!
Tele44,

If you're 7 to 10 days from harvest I don't think there's really a dam thing you can do that'll make a difference. I certainly wouldn't spray any thing on the plants at this point. And that's not enough time for predatory bugs to do you any good. If you had good healthy plants up to this point I don't think a small out break of thrips at this point is really going to hurt your quality or yield. I know having them sucks but it's just one of those things you can't change.

Jack

PS: After harvest though you'll definetly want to be giving the grow space a good cleaning and bug spraying before the next run.
 

Jack in the Bud

Active Member
THANK YOU. I'm not positive if I have thrips, but my soil is INFESTED with little white bugs that HAUL some serious ass around the pots! and when I say infested, I mean you pick up a pinch of soil, and have 20 of them. I already purchased mosquito dunks last year(never used) and am ready to give this a try. I appreciate you taking the time to share this information. +
jnuggs,

I really don't know what those might be but it doesn't really sound like thrips. You didn't say how far along in the grow you were but if you're not with in 2 weeks of harvest (and if it was me) I'd spray the soil surface (and posiibly the whole plant it's self if they were on it) with a Malathion spray mix (10 ml/gallon). What ever they are I'm guessing that will whack'm back severly.

Jack
 

neef

Well-Known Member
is there any kind of predator for thrips? i was recently told lady bugs work so i bought 1500 of them but i'm still seeing new leaf damage
 

statik

Well-Known Member
Nice post man, +Rep.

Anyway I wanted to jump in here and mention a new product I found from Gen Hydro. It's called Azamax, it is licensed in all 50 states and also OMRI listed. It can be used in the soil, or as a spray. It is also safe to use right up until harvest. This stuff goes systemic, so even if you can't spray your plants because you are in flower...you are still going to get the bugs feeding/hiding on the foliage. After 3 treatments bugs wont even want to touch your plants anymore.

Azamax kills just about any bug you could have...seriously. Cool thing though is it wont even harm earthworms.

Some quick info from GH page about Azamax:

Botanical Insecticide, Miticide, and Nematicide

AzaMax is a natural product with a broad spectrum of pest control and broad plant applications. AzaMax is made from special Azadirachtin Technical extracted using patented extraction technology from Neem, a tree known for it’s innumerable benefits. AzaMax contains Azadirachtin A&B as active ingredients and more than 100 limonoids from it’s special technology. The special feature of AzaMax is that it does not use hard chemical solvents and uses food grade formulation ingredients. AzaMax is licensed in all 50 states. AzaMax is an antifeedant and insect growth regulator and controls pests through starvation and growth disruption. AzaMax effectively controls spider mites, thrips, fungus gnats, aphids, whiteflies, leaf miners, worms, beetles, leafhoppers, scales, mealy bugs, nematodes and other soil borne pests. Best of all, AzaMax can be applied up to the time or day of harvest. The product is exempted from residue tolerance, thus there is no harmful residue on veggies, fruits, herbs and flowers etc. Truly, AzaMax is a product of Nature in tune with Technology.
 
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