Hi, I just looked all over the internet (OK, Youtube), but I found nothing.
My Polish friend said her grandma used to collect the bugs that harmed her garden, whizz them in the blender and make a diluted spray to repel any future ones.
Years ago I found a source where they said to get 10g of bugs, reduce them to char and then dilute them in a homeopathic way (in 100ml of distilled water, and then a drop of that in another 100ml of water).
Oh shoot, that's actually an awesome idea. Your friend's grandma just handed out a 10,000 IQ move.
Bugs (stink bugs included) have what's colloquially called a 'Death Stench' (lol) - which tells other bugs 'Oh shit, something poisonous/dangerous is nearby, better run away'
Biologist David Rollo discovered this when studying the social behaviors of cockroaches.
When a roach locates a new amazing place full of food, it gives off a chemical pheromone to attract other cockroaches.
But when a cockroach dies, its body produces a pheremone that strongly repels the cockroaches.
They crushed dead cockroaches and spread the body-juice in different areas - some with food, some regular corners, etc. "It was amazing to find that the ockroaches avoided places treated with these extracts like the plague."
So far the research has found that the 'death stench' fatty acids are found in pretty much all common insects, and is a UNIVERSAL repellant for insects.... even woodlice and pillbugs.
Even though woodlice and pillbugs are crustacians, they produced the same set of fatty acids that create the 'death stench', and so were equally effective at repelling bugs when mashed.
They also found that a log treated with the fatty acids (extracted from dead bugs, not the mashed bug paste itself) repelled wood beetles in an open forest environment for a full month - even through rainfall.
Bonus: Humans can't deetect the fatty acids of the 'death stench' - it's not the same compound as what sting bugs or cockroaches give off when they die.
so if you wanted to collect woodlice, pill bugs, stink bugs - any pest bugs, really, mash them up, dilute them a little so it'll fit through a spray, and hose down your plants.... I'm almost CERTAIN that it will work!
I'm honestly gobsmacked that I never made that connection. I knew about the death-chemical and how it made bugs run away, but I never made the connection "Oh, use dead bugs as a natural bug-repellant"
I.... really want to try this, now. I'm sure I could find loads of pillbugs under various rocks. The squash beetles have arrived, and something's been chewing my amaranth and peach trees to bits.
If I could just blend up some bugs to make a universal bug-spray....if it /works/, we may have just stumbled across a solution to one of the biggest difficulties in organic gardening: How do you stop bugs from eating your plants, without using toxic gick?
Bro, I'm so excited. Please please pleast do this and come back w the results! I'm also going to go bug-hunting when I get home.
I wonder if this would also work for bugs that chew on humans. Maybe it'd smell, but if it kept chiggers and ticks away, it'd be worth it to me.
“Action on behalf of life transforms. Because the relationship between self and the world is reciprocal, it is not a question of first getting enlightened or saved and then acting. As we work to heal the earth, the earth heals us.” ~ Robin Wall Kimmerer
All right! Here in Costa Rica, we're going through a severe rainy season, so I pretty much gave up on gardening. I don't know if the stink bugs passed a virus to my tomatoes that were growing so strong, or the bugs came because the tomato was already weakened by the rain.
Anyway, I won't be the first one to report on this practice. I do have a bug-zooka and I already sucked a couple of bugs last night.
Writing from Madhuvan, a yoga retreat/organic farm on the West Coast of Costa Rica.