The Secret Life of Thrips
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- čas přidán 11. 11. 2019
- Thrips are very small insects that generally go unnoticed, even though they are remarkably abundant throughout the world, consisting of over 6,000 species, of which about 100 are crop pests. As butterflies and bees are larger and attract more public attention, the biology of thrips is just as fascinating. This lecture will describe their diversity and some of their remarkable behaviours, and then the damage they inflict on our crops and the difficulty of their pest control. Thrips are sometimes known as thunderbugs, because of their tendency to land on people just before thunderstorms. They feed on leaves, fruit, flowers, tree bark and fungi, and some prey on smaller creatures, and exhibit a range of social behaviours, from guarding communal egg masses to living in large colonies with soldier thrips to defend the colony. Many thrips damage crops by feeding and transmitting plant viruses, causing around 10-billion dollars of damage per year; however, they are difficult to control because they breed rapidly, are resistant to insecticides, and are hard to detect, meaning they can be accidentally transported on plant material and become invasive pests. One invasive species, the western flower thrips, is a major pest to horticulture worldwide. Thus, growers urgently need new ways to manage this pest, and at Keele, we have identified its aggregation pheromone, resulting in the development of pheromone lures and traps that are used commercially to protect horticultural crops in many countries.
Professor William Kirk's Inaugural Lecture
Thrip talk starts at 10:00
This is great! Using this information for my quest to eradicate the exploding thrip population among my household plants. Thank you for sharing this information to the public.
Shame nobody seems to show how the thrips develop in the eggs. I think my home got invaded by chili thrips from supermarket fruit and veg. They eat every plant I try to grow, and most plants cannot stand up to continual spraying, whhich kills them as surely as the thrips!
The invasion starts to be noticed as rough pimples on the leaves, in which you can see the red eyes looking back at you if you have a pocket microscope. Closer looking, it appears that small pinkish eggs are laid, usually next to a vein, and looks like something bores into the leaf vein tissue from the egg, and starts to grow and make an oval cyst, presumably being fed by the veins themselves. Eventually the nymphs emerge and start stripping all the chloroplasts from the leaves. By the time you spot this, the plant is dooomed.
I bought some Amblyssius 'Ulti-mites' at great expense, and noticed 'windows' appearing in the leaves of my chilli plants. Closer inspection shows that the mites have sharp claws on the end of each foot, and they appear to scratch open the cysts in which the larvae are developing. Unfortunately, more cysts soon appear after the mites have gone. :( I can't find any description of this stage in thrips development anywhere! They all go straight from egg to nymph without saying how the egg grows the nymph! :(
Lovely and solid information , just that I wish he had also explained the breeding cycle 🙃
skip to 10:36 save hearing all about his life
Fantastic absolutely fascinating, thank you
Very educational... I have an issue right now with thrips on my cannabis plants. I decided to do some reasearch and came accross this video. Great job and thanks for the information, I think it will be easier eliminating them knowing what these little buggers are actually up to!
If you have already eradicated them,, id love to know how you did it.. I've got thrips on my orchids which are in my bedroom, so, like you, I've got to be careful with the chemicals. I don't know what kind of thrips you have, (mine are big and black) but there was a girl on yotube who said she had them and used nematodes..she's a smart one..getting a chem degree I think, so unlike most other online growers, I trust her a lot more because she's like me and will research the hell out of stuff and is capable of understanding scientific papers. Astrid is her name. She left the link to the company she got them from. Thats going to be my first choice, I think. Also, there are a couple of fungi strains that infect thrips and other beasties, but I don't know if this is safe to use indoors or on plants you would smoke. One is on arbico organics and just has a name like p473 and the other is Beauvaria bassiana.
@@indoororchidsandtropicals358 , Hey sorry for the late reply. I actually got rid of those guys within just two weeks of DIY pesticide application! What I used was Pure Neem Cold Pressed Oil and Natural Castile Soap without detergents, both from amazon. Mixed at a rate of: 2.5ml Neem oil, 2.5ml Castile Soap shakin well with 1 litre of RO water. You can apply this all over the plants at a rate of every 3-4 days. First spray one leaf and wait a day just to guage your plants reaction, just in case. This is an all natural pesticide! I wouldnt recomend using this far into flower as it does have an odor, but doesnt seem to last long. I hope this was some help?
2 weeks is too early to say u got rid of them. However, hope u actually did.
Thank you!
Amazing video. I would subscribe to the channel if they had more content like this.
tuck frips
Thrips are Effecting Life of many Farmers in AndhraPradesh , Telangana & Karnataka States in India . Causing Damage to Lakhs of Acres . Red Chilli (Mirchi) is Effected by thrips .. First time in year in 2021 it caused huge damage many open farms lands and many of left with debts and left agriculture .. Again it attacked in 2022 .. effecting yelding at mid stage at in time of flowering .. We Hope God save Farmers .
Can't find any sign of Prof Kirk now. Where did he go?
Thank you.
How to kill black thrips
I like Thrips
If u cant beat em, join em.