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Scientists discover key to huge locust swarms

Posted on Saturday, 15 August, 2020 | Comment icon 7 comments

The key to locust swarming behavior is a specific chemical signal. Image Credit: Arpingstone
By identifying the chemical signal that triggers swarms to form, it may be possible to stop swarming entirely.
For thousands of years, vast swarms of locusts have remained the bane of civilization - huge clouds of insects capable of mowing through entire fields in mere minutes, resulting in severe food shortages.

But what if it were possible to use modern science to put a stop to locust swarms once and for all ?

In a new study, scientists have identified the chemical signal that the insects excrete to trigger swarming behavior, a substance known as 4-vinylanisole (4VA).
This chemical is particularly powerful and works on even small groups of only a few insects.

It is hoped that it may be possible to use a synthesized version of 4VA to lure locusts into traps, or to produce a genetically modified locust that does not respond to it at all.

These non-swarming insects could then be gradually introduced to replace the existing populations.

"In human history, locust plagues, drought and flood were considered as three major natural disasters which caused serious agricultural and economic losses all over the world," said lead researcher Le Kang from the Chinese Academy of Sciences' Institute of Zoology.

"As the most widely distributed and one of the most dangerous locust species, the migratory locust represents a serious threat to agriculture worldwide."

Source: Reuters | Comments (7)

Tags: Locust, Swarm

Recent comments on this story
Comment icon #1 Posted by seanjo on 15 August, 2020, 10:46
God's gonna be p***ed...
Comment icon #2 Posted by Humbled Hypocrite83 on 15 August, 2020, 12:35
Gods had a plan for years
Comment icon #3 Posted by godnodog on 16 August, 2020, 8:34
what an amazing news, but I am always somewhat apprehensive on how we try to fight this with chemicals.
Comment icon #4 Posted by Wreck7 on 16 August, 2020, 10:14
It will be weaponized. Mark my words.
Comment icon #5 Posted by Twas Brillig on 24 September, 2020, 15:01
It's not chemicals (such as pesticides) this article is suggesting we fight them with, but with genetic manipulation...which is also potentially very dangerous. 
Comment icon #6 Posted by godnodog on 24 September, 2020, 15:24
the article does refer to chemicals usage as potential solution   "There are other avenues too, including weaponising the chemical, by using a synthetic form of it to bait traps to catch locusts"
Comment icon #7 Posted by Twas Brillig on 24 September, 2020, 15:28
Thanks for pointing that out, and the correction, I do remember reading that too. 

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