Flower Pots, Guppies and a Grand Plan
If you’ve read our natural mosquito control guide, you’ll know that we flagged guppies and dragonflies as two of the best natural weapons you can deploy against mosquitoes in a tropical garden. Well, we’ve been doing our homework, a small parcel of bamboo sticks has arrived via Lazada, and when my partner returns from a break from me to visit the family, we’re heading out to find some guppies. This is where we’re up to.
How We Got Here
When we moved into our place in Hua Hin, the previous owner had left a collection of upright and upturned flower pots scattered around the garden. Not exactly a water feature. But once we started researching natural mosquito control properly, we realised we were sitting on the raw materials for something genuinely useful – container ponds that could house guppies, attract dragonflies, and help keep the mosquito population in check without a drop of chemical spray.
We’ve been checking the pots to see what’s already breeding in them.
Spoiler 1: if there are larvae present, that’s actually confirmation that the pots are already doing exactly what mosquitoes love – holding shallow, still, warm water. The guppies will fix that.
Spoiler 2: (possibly less of a spoiler) most pots have irrigation holes to drain excess water – these will not be appreciated by any future guppy inhabitants.
We’ve found a spot on the veranda for at least one pond – possibly two once the guppies start doing what guppies apparently do with great enthusiasm. Somewhere visible, somewhere we’ll actually enjoy looking at them. Because if you’re going to have a mosquito control system, it might as well be one you want to spend time near.
What We’ve Learned About Dragonfly Perches
Before the guppies even arrive, we wanted to get the dragonfly side of things moving. After watching several videos on the subject, the consensus is pretty clear. Dragonflies love thin, vertical perches – bamboo sticks being the most recommended option. They use them as hunting platforms, especially around dusk when mosquitoes are most active. The key numbers that kept coming up: stick diameter around 8-10mm, height 45-90cm above the ground or water surface with taller being better near water, spacing roughly 90cm apart to give individual dragonflies enough territory, and position in sunny spots near water.
Dragonflies are extraordinary hunters – a single adult can eat up to 100 mosquitoes a day, which by anyone’s maths is a good return on investment. They’re already visiting the garden, and we’ve occasionally spotted them flying around. It may be my imagination but I’m sure at least one of them looked tired. Yes, I can tell. Now that the stakes have arrived, we have been wrestling them into what passes for soil in a Thai dry season, and they are now in position. Those poor tired dragonflies can now rest peacefully though they may have a little competition from the local avian life who seem to find great pleasure in just hanging onto the new garden additions. We have left an upright flower pot near the sticks so any rainwater (this is the hot season so there is the overarching question of ‘what is rain’ at the moment) will collect naturally and is also located on the edge of the garden so any mosquitoes using it will be far enough away not to try to invade the house. We may not get dragonfly visitors immediately but between the water feature and the perches, we’re setting up the right conditions.
One useful detail from the research – a stick leaning into the pond at an angle isn’t just a dragonfly perch. It also gives any small creature that falls in a way to climb back out. Two jobs, one stick. We’ll be adding one to each pot.
What We’ve Learned About Guppies
Guppies have been used for mosquito control for over a century. They’re fast, they’re hardy, they breed readily, and they eat mosquito larvae with what can only be described as dedication. A few things we’ll be keeping in mind: container size matters as too small means water temperature swings too much in tropical heat, direct sun all day can overheat a small container so partial shade in the hottest part of the afternoon is better, no need for filtration in a small outdoor pond if you have aquatic plants helping oxygenate the water, and moving water discourages mosquitoes from laying eggs in the first place.
On buying them – we’re planning to visit local pet shops in Hua Hin rather than ordering online. We want to see the conditions they’re kept in before we buy. Guppies shipped in unknown conditions aren’t a great start, and frankly supporting a local shop that looks after its fish properly feels like the right call.
Oh and guppies are very pretty. Probably worth mentioning.
What We’re Not Sure About Yet
Honest answer – quite a lot. We don’t know how the flower pots will perform in full Hua Hin heat. We don’t know how quickly the guppies will breed or whether we’ll need to manage the population. We don’t know if the dragonflies will take to the bamboo sticks immediately or ignore them entirely for the first month.
That’s the point though. This is us figuring it out in real conditions, in a real tropical garden, and reporting back honestly. If something doesn’t work we’ll tell you. If something works better than expected we’ll tell you that too.
Further Watching
If you want to go deeper on any of this before we post the follow-up, these are the videos we found most useful in our research: My Backyard Mosquito Problem by The Millennial Gardener – the video that started all of this for us; Creating a Dragonfly Habitat in my Whiskey Barrel Pond by Ninety Percent Native Plants – a great example of a small container pond setup done properly; How I Attract Dragonflies, Frogs, Lizards and More by This Is Texas Gardening – less focused but excellent on the broader ecosystem argument.