Enjoying your terrace in summer without being eaten by mosquitoes is the wish of every owner. However, finding the right solution Mosquito repellent terrace is often an obstacle course. At Garden Reclaimer, designer of the Mosquito repellent terminal GréCo, every year we see a growing demand for truly effective outdoor solutions.
In 2026, mosquito pressure intensified throughout France. The tiger mosquito is now present in 71 departments, and mild winters combined with humid springs encourage early proliferation. As a result, the nuisance season starts in April in the south and lasts until the end of October. Without one protective device efficient, your evenings outside quickly become an ordeal.
But not all solutions are created equal. Between lemongrass spirals, UV lamps, body repellents, and CO₂ traps, the differences in effectiveness are considerable. This comparative guide helps you choose the most suitable solution for your terrace, your budget and your level of requirements.
Comparison of mosquito repellent on the terrace: the 7 solutions screened
To draw up this comparison, we evaluated each solution on five criteria: effectiveness in reducing bites, area covered, total cost over a season, ease of installation and impact on the environment. The Garden Reclaimer GréCo terminal is clearly distinguished by its unique combination of efficiency and autonomy.
A few details on reading this comparison. Effectiveness is measured as a percentage of reduction in bites in a given area, based on entomological studies and field feedback. The range corresponds to the maximum range of action under optimal conditions (low wind, moderate humidity). The cost per season includes consumables (refills, attractants) and electrical consumption, but not the initial purchase price of the device.
The observation is clear: CO₂ solutions dominate the ranking in terms of efficiency. Among them, the GréCo terminal is distinguished by its total autonomy (no gas bottle) and an operating cost five to ten times lower than that of a conventional CO₂ trap. For a standard-sized terrace (50 to 200 m²), a single well-positioned bollard is enough to transform your outdoor space into a protected area.
The GréCo terminal: the most efficient terrace protection
The Garden Reclaimer GréCo terminal is based on a smart reactor which concentrates and releases the CO₂ already present in the ambient air. Unlike bottle traps, it requires no gas bottles, no regular refills and no technical intervention. This is what makes it the most successful terrace protection solution on the market.
The signal emitted by GréCO faithfully reproduces that of a human being: CO₂, heat, humidity and pheromones. Female mosquitoes, attracted from several tens of meters, are sucked up by a fan into a retention net. This process is purely mechanical, without insecticide or chemical products. It therefore fully preserves pollinators (bees, butterflies) and the useful biodiversity of your garden.
- Ported : up to 60 meters in radius, or about 1 hectare of coverage.
- Measured efficiency : 80 to 95% reduction in the mosquito population after 6 to 8 weeks.
- Cost of operation : 50 to 100€ per season (liquid attractant only).
- Installation : simple installation, connection to a 220 V socket, no technical skills required.
- Environmental impact : carbon neutral, zero insecticide, zero gaseous consumables.
To find out more about how this technology works, check out our page GréCo technology.
Where and how to install your mosquito repellent on the terrace?
The effectiveness of a Mosquito repellent terrace depends as much on the choice of the device as on its positioning. A poorly placed trap can lose up to 50% of its catch potential. Here are the essential rules for maximizing results on your terrace.
Place the trap between mosquito resting areas and your terrace. Mosquitos take refuge in hedges, shrubs, and wetlands in the garden during the day. The trap should catch mosquitos before they reach your relaxation area. Position it 10-15 meters from the terrace, on the side of the plant beds or the nearest water point.
Avoid the dominant wind. The CO₂ plume must travel in relatively calm air to attract mosquitoes from a long distance. If your terrace is exposed to wind, place your device in an area sheltered by a hedge, wall, or house structure.
Raise the device. Most mosquitoes fly at a height of 50 cm to 1.5 m. A trap placed directly on the ground will be less effective. Place your device on a 60 to 80 cm support to optimize the distribution of the attractive signal.
- Ideal distance : 10-15 m from the living area, between the vegetation and the terrace.
- Height : 60-80 cm from the ground, on a stable support.
- Orientation : sheltered from the dominant wind, ideally under a shaded area.
- Timing : activate the trap 4 to 6 weeks before the peak of the season to break the reproductive cycle.
For complex terraces or very large areas, Garden Reclaimer offers a free mesh diagnosis. Request your field study for optimal placement.
Terrace protection: the essential complementary actions
Even the best protection solution is more effective if you apply a few simple preventive actions in parallel. Combining a CO₂ trap with the elimination of larval sites multiplies the results.
Remove any standing water around the patio. A single plug of water is enough for a tiger mosquito to lay up to 300 eggs. Empty the flower pot saucers after each rain, turn the buckets and watering cans upside down, cover the water catchments, and clear out the clogged gutters. To learn more about it, read our guide on the life cycle of the mosquito and the elimination of larvae.
Choose the right lighting. Cool white LED bulbs and neon lights attract flying insects more than yellow or amber lights. Replace the lights on your terrace with warm-colored “anti-insect” bulbs to reduce the attractiveness of your space.
Plant natural repellents. Citronella, lavender, geranium and basil emit substances that interfere with mosquitoes' olfactory sensors. Arranged in pots around your terrace, these plants are an aesthetic and functional complement to your main device. To maximize their effect, wrinkle the leaves regularly: it is mechanical contact that releases the repellent essential oils, not the simple presence of the plant.
Maintain your nearby vegetation. Dense hedges, unpruned beds, and heaps of fallen leaves provide ideal refuges for adult mosquitoes during the hot hours of the day. By regularly trimming the vegetation around your terrace and removing unnecessary areas of humid shade, you are reducing favorable micro-habitats. This simple approach significantly improves the results of your trap by limiting the rest areas in the immediate vicinity of your living space.
Ventilate the terrace. Mosquitoes are poor thieves: a simple 5 km/h air stream is enough to destabilize them. If your patio has a ceiling fan or fan, use it in the evening to create a natural air barrier. Combined with a GréCo terminal, this duo offers almost total protection.
What budget to protect your terrace from mosquitoes?
The price of a protection solution varies greatly depending on the technology chosen. The classic mistake is to compare only the original purchase price without taking into account the total cost of running over several seasons.
Take the example of a bottle-based CO₂ trap sold for €700: you have to add €300 to €500 in gas refills per season. Over 5 years, the total cost reached 2,200 to 3,200€. The GréCo terminal, with a higher initial investment (from €1,200), costs only €50 to €100 per season in operation. Over 5 years: 1,450 to 1,700€, i.e. 40 to 50% savings compared to the bottle trap.
For budgets that do not want to invest immediately, Garden Reclaimer also offers a rental model starting at €300/month, installation and maintenance included. This formula is particularly suitable for professionals (restaurants, hotels, campsites) who want to protect their outdoor space without a commitment to purchase. It includes installation, seasonal maintenance and the replacement of equipment in the event of a malfunction, which eliminates any financial risk for the operator.
- Minimum budget (spirals + repellent) : 200-400 € per season, partial efficiency (30-50%).
- Intermediate budget (CO₂ bottle trap) : €500-900 the first year, €300-500 afterwards.
- Optimal budget (GréCo terminal) : €1,200 + €50-100/season, maximum efficiency (85-95%).
- Rental solution (GréCo pro) : from €300/month all inclusive.
Mosquito repellent on the terrace: when does the season start?
The activation schedule of your device directly determines the effectiveness throughout the season. Too many owners wait for the first injections to take action, while optimal results require early start-up.
In the south of France (Occitanie, PACA, Corsica), the first mosquitoes appear as early as March-April. Activate your trap at the latest at the end of March to intercept the first breeding females before they lay eggs.
In the center and the north, the season usually starts in May. Starting at the end of April guarantees a head start on the breeding cycle. The effectiveness of a CO₂ trap is cumulative: each female captured means up to 300 fewer eggs in the environment.
A point that is often overlooked: regularity. A CO₂ trap must work continuously, day and night, to produce significant results. Turning off the device at night or in cool weather significantly reduces its impact on the local mosquito population. Some species, such as Culex pipiens (the common mosquito), are particularly active at dusk and dawn, making nocturnal functioning essential.
The GréCo terminal integrates a Connected mode which makes it possible to monitor the capture rate in real time and to adapt the parameters (eco mode in case of low pressure, performance mode during peaks). At the end of the season (October-November), store the device in a dry and temperate place to find it in perfect condition the following season.
To identify the mosquito species present in your region and adapt your strategy, consult our guide: How to recognize and report the tiger mosquito.
FAQ: mosquito repellent on the terrace, your questions, our answers
What is the best mosquito repellent for a small area on the terrace?
For a small terrace of 20 to 50 m², several options are viable. Citronella spirals offer an economical solution (10-30 €) but their effectiveness remains limited (30-45%) and their range of action does not exceed 2-3 meters. A fan is a good complement with a 50-65% reduction in its breath zone. However, for truly effective protection without compromise, the GréCo bollard by Garden Reclaimer largely covers a small terrace with an 85-95% reduction in mosquitoes. Its annual operating cost (50-100 €) makes it profitable from the second season in the face of solutions that need to be constantly renewed.
Is the GréCo terminal effective against the tiger mosquito on a terrace?
Yes, the GréCo terminal is particularly effective against the tiger mosquito (Aedes albopictus). This species, present in 71 French departments in 2026, is very sensitive to the CO₂ signal combined with pheromones. Field tests show an effectiveness of 85 to 90% on the tiger mosquito after 6 to 8 weeks of continuous operation. This is a crucial point for terraces located in the regions concerned (south, south-west, south-west, Rhône Valley, Paris region), because the tiger mosquito bites during the day, which makes it even more annoying for using the terrace in the afternoon and evening.
How much does a season of terrace protection with GréCo cost?
The operating cost of the GréCo terminal is 50 to 100€ per season. This amount only covers the replacement of the liquid attractant (once a year) and electricity consumption, which remains very low. There is no cost of a gas bottle since GréCo generates its own CO₂ from the ambient air. Compared to a CO₂ trap with a bottle (300-500 € per season in gas refills) or to the lemongrass spirals that accumulate (150-300 € per season), the GréCo represents the most economical solution in the long term.
Is a mosquito trap dangerous for pets?
The GréCo terminal does not present any danger for domestic animals (dogs, cats, birds). The capture process is purely mechanical: attraction by CO₂ and pheromones, then suction by fan. No insecticide, no chemical product, no toxic substance is released into the air. Unlike pyrethroid spirals and diffusers, which can irritate the airways of sensitive animals, the CO₂ trap is completely harmless to your companions. Your pets are also not attracted to the CO₂ + pheromone signal, which exclusively targets female mosquitoes looking for blood.
Can several mosquito repellent solutions be combined on the terrace?
Yes, combining several approaches is even recommended for maximum protection. The most effective strategy consists in combining a GréCo terminal (which actively reduces the mosquito population in a large radius) with preventive measures: elimination of stagnant water, adapted lighting (yellow or amber bulbs), repellent plants in pots (lemongrass, lavender, geranium) and ventilation of the terrace. This multi-layered approach provides 90 to 95% protection and makes your evenings outside really enjoyable all season long.
Does deck protection work in windy weather?
Wind affects all CO₂ traps because it disperses the gas plume that attracts mosquitos. In strong winds (over 30 km/h), efficiency can decrease by 20 to 30%. However, evenings on the terrace are generally spent in calm weather or with a light breeze, conditions in which the GréCo terminal works perfectly. For very exposed terraces, place the trap away from a wall or a hedge. Wind also has an indirect positive effect: it hampers the flight of mosquitoes, which naturally reduces their presence on your terrace. Combining a GréCo terminal with an outdoor fan creates a very effective double barrier.
