Just how small are Thrips?
- Thread starter mrcourios
- Start date
mrcourios
Member
Thanks,I'm going in the morning to get something. Do you have any experience with them and could you recommend a product? I've seen a lot of different ones mentioned in my searches. Are the traps also effective?
lime73
Weed Modifier
well the traps are not going to solve your problem...yes ive have experience with them...a long time ago. they do major damage once they reproduce ..and the eggs hatch.
the product i used back then is not available now...but it did kill them and the eggs too, with a little bit of shock and damage from the spay.... but they bounced back if treated asap.
just make sure you identify that they are thrips before getting a spray for them though allot of sprays cover allot of different insects...there is a few in links, i sent, though i could not recommend one as i have not used any of these chemicals before...im sure someone will chime in with their experience soon ...patients and we will get you the help you need
lime73
Weed Modifier
here is some info from a sticky thread here ...https://www.rollitup.org/bugs/335046-grizzlys-guide-pulverizing-pests.html
Thrips
An enlarged picture of the thrip, these insects are smaller than a pinhead
Prevent: Keeping clean habits is the only defense against a thrip infestation. These tiny insects will go unnoticed even by the most cautious grower until they reach damaging levels.
Identify: The thrip is commonly a greenhouse pest. It is difficult for the thrip to reproduce in large quantities outdoors and they must hitchhike into indoor gardens. These little guys are TINY! Thrips can be almost any color, move very quickly and have wings. They can be hard to see individually however detection should not be difficult. Thrips have a tendency to move in herds together, ripping tiny strips off the top of your leaves and drinking juices below. This can deprive plants leaves of chlorophyll so thoroughly they become brittle, dark, and crumble. Tiny black lines present across leaf surface, thats their toilet. The flying thrip can easily infest your garden very quickly if protected from outdoor conditions. The female thrip bores a hole into plant matter and leaves her eggs there in a hole so small you will need a magnifying glass to even know it is there. Apologies, I've been saving the worst for last. In marijuana the thrip prefers to thrive, eat, shit and reproduce primarily inside buds. Shaking branches will send these pests flying and jumping for other places.
The left leaf is earlier in thrip damage progression, and the right is severe damage. Damage done by thrips to leaves that initially resemble scaling but the damage becomes clear as the thrips progress
Eradicate
Repression: Forced air circulation using powerful enough fans to move air throughout your greenhouse or growroom can keep the thrip from being able to hang on or move. Regular misting of water will flood the thrips on the leaves and slow their travel, reproduction, and ability to damage your plant. Sticky traps will help, however the thrip is happy eating in the same area for its entire life cycle. Low migration reduces effectiveness of sticky traps.
Predators: Nearly any predatory mite is effective in combating thrips. Parasitic wasps may also be used, however the sheer numbers of thrips limits their ability.
Manual Removal: You might be able to see herds of the tiny specks moving around your plant, crushing these will reduce their numbers of course but is not effective overall.
Spray: Pyrethrum or insecticidal soap sprayed 2-4 times at 5-10 day intervals will nuke thrips back to the stone age.
Thrips
An enlarged picture of the thrip, these insects are smaller than a pinhead
Prevent: Keeping clean habits is the only defense against a thrip infestation. These tiny insects will go unnoticed even by the most cautious grower until they reach damaging levels.
Identify: The thrip is commonly a greenhouse pest. It is difficult for the thrip to reproduce in large quantities outdoors and they must hitchhike into indoor gardens. These little guys are TINY! Thrips can be almost any color, move very quickly and have wings. They can be hard to see individually however detection should not be difficult. Thrips have a tendency to move in herds together, ripping tiny strips off the top of your leaves and drinking juices below. This can deprive plants leaves of chlorophyll so thoroughly they become brittle, dark, and crumble. Tiny black lines present across leaf surface, thats their toilet. The flying thrip can easily infest your garden very quickly if protected from outdoor conditions. The female thrip bores a hole into plant matter and leaves her eggs there in a hole so small you will need a magnifying glass to even know it is there. Apologies, I've been saving the worst for last. In marijuana the thrip prefers to thrive, eat, shit and reproduce primarily inside buds. Shaking branches will send these pests flying and jumping for other places.
The left leaf is earlier in thrip damage progression, and the right is severe damage. Damage done by thrips to leaves that initially resemble scaling but the damage becomes clear as the thrips progress
Eradicate
Repression: Forced air circulation using powerful enough fans to move air throughout your greenhouse or growroom can keep the thrip from being able to hang on or move. Regular misting of water will flood the thrips on the leaves and slow their travel, reproduction, and ability to damage your plant. Sticky traps will help, however the thrip is happy eating in the same area for its entire life cycle. Low migration reduces effectiveness of sticky traps.
Predators: Nearly any predatory mite is effective in combating thrips. Parasitic wasps may also be used, however the sheer numbers of thrips limits their ability.
Manual Removal: You might be able to see herds of the tiny specks moving around your plant, crushing these will reduce their numbers of course but is not effective overall.
Spray: Pyrethrum or insecticidal soap sprayed 2-4 times at 5-10 day intervals will nuke thrips back to the stone age.
mrcourios
Member
Thanks again,I thought may I had a deficiency but when I came across this thread the only pic that looked like my leaves was the thrip one about 2/3 down the page.well the traps are not going to solve your problem...yes ive have experience with them...a long time ago. they do major damage once they reproduce ..and the eggs hatch.
the product i used back then is not available now...but it did kill them and the eggs too, with a little bit of shock and damage from the spay.... but they bounced back if treated asap.
just make sure you identify that they are thrips before getting a spray for them though allot of sprays cover allot of different insects...there is a few in links, i sent, though i could not recommend one as i have not used any of these chemicals before...im sure someone will chime in with their experience soon ...patients and we will get you the help you need
http://www.icmag.com/ic/showthread.php?t=11688
mrcourios
Member
Just posted a link with that pic one minute after you.here is some info from a sticky thread here ...https://www.rollitup.org/bugs/335046-grizzlys-guide-pulverizing-pests.html
Thrips
An enlarged picture of the thrip, these insects are smaller than a pinhead
Prevent: Keeping clean habits is the only defense against a thrip infestation. These tiny insects will go unnoticed even by the most cautious grower until they reach damaging levels.
Identify: The thrip is commonly a greenhouse pest. It is difficult for the thrip to reproduce in large quantities outdoors and they must hitchhike into indoor gardens. These little guys are TINY! Thrips can be almost any color, move very quickly and have wings. They can be hard to see individually however detection should not be difficult. Thrips have a tendency to move in herds together, ripping tiny strips off the top of your leaves and drinking juices below. This can deprive plants leaves of chlorophyll so thoroughly they become brittle, dark, and crumble. Tiny black lines present across leaf surface, thats their toilet. The flying thrip can easily infest your garden very quickly if protected from outdoor conditions. The female thrip bores a hole into plant matter and leaves her eggs there in a hole so small you will need a magnifying glass to even know it is there. Apologies, I've been saving the worst for last. In marijuana the thrip prefers to thrive, eat, shit and reproduce primarily inside buds. Shaking branches will send these pests flying and jumping for other places.
The left leaf is earlier in thrip damage progression, and the right is severe damage. Damage done by thrips to leaves that initially resemble scaling but the damage becomes clear as the thrips progress
Eradicate
Repression: Forced air circulation using powerful enough fans to move air throughout your greenhouse or growroom can keep the thrip from being able to hang on or move. Regular misting of water will flood the thrips on the leaves and slow their travel, reproduction, and ability to damage your plant. Sticky traps will help, however the thrip is happy eating in the same area for its entire life cycle. Low migration reduces effectiveness of sticky traps.
Predators: Nearly any predatory mite is effective in combating thrips. Parasitic wasps may also be used, however the sheer numbers of thrips limits their ability.
Manual Removal: You might be able to see herds of the tiny specks moving around your plant, crushing these will reduce their numbers of course but is not effective overall.
Spray: Pyrethrum or insecticidal soap sprayed 2-4 times at 5-10 day intervals will nuke thrips back to the stone age.
lime73
Weed Modifier
same one i posted
from your link...
Control
One good way to repel thrips for those growing outside is to use garlic, this is a good way to keep them away before you get them. The color yellow attracts the thrips and should be advised not to have this color around your grow.. If you already have them using neem oil, and or lady bugs can get rid of them. If the infestation is bad then you need to use biological solution like, pyrethrin-like insecticides.
Other Products include:
Chemicals
Hot Pepper Wax,Safer Yard & Garden Insecticide (which can be used right to the day of harvest),GNATROL( used in hydro in the water as well as soil),Doc's Neem Pest Soap,Safer Sticky Stakes,TR-11000 Pyrethrum.
mrcourios
Member
I'm probably going to have a hard time getting to sleep tonight thinking of those little bastards.
lime73
Weed Modifier
well least you have noticed something is wrong ....thats the first part to being able to fix it ...and you still have time ...no worries, think positive and things will perk up soon for yah.
mrcourios
Member
Treated them with Pyrethrin this morning.
chipmunkproof
Active Member
Ive had good luck with Spinosaid products.
mrcourios
Member
Well,just sprayed them again. Spotted a few dots appearing in the new growth so I checked under a new leaf and there they were. I think part of the problem is I'm doing LST and have them laying down and the new growth is just taking off from everywhere and the new growth has no pyrethrin on it. At least thats what I'm hoping is whats happening. Their numbers are way down tho and very little signs of damage from them. I also put up a blue trap for them.