A Fight Malaria concept in development

Getting ahead
of the rain.

SkyShield is an idea we're working on: use drones and LiDAR to predict where rainwater will collect after a storm, then treat those low spots with larvicide before mosquitoes ever get the chance to breed there.

An idea we're actively building and testing at Fight Malaria. Here's how it would work.
The problem

Mosquitoes breed in the water we don't see coming.

Anopheles mosquitoes lay their eggs in still, standing water. After a rainstorm, dozens of small pools form in tire ruts, footprints, ditches, and low ground, and each one can become a nursery for the next generation.

By the time those puddles are obvious, larvae are often already developing. Spraying after the fact is slow, and it's always a step behind the weather.

The idea behind SkyShield is to flip that timeline, treating the ground before the water arrives.

mosquito eggs laid in standing water
The concept

Four steps, from sky to still water.

Here's how the idea would work in practice. It's a repeatable flight routine that turns terrain data into precisely placed larvicide.

01

Scan the terrain

A drone flies a grid over the area, its LiDAR building a detailed 3D elevation map of the ground below.

02

Model the flow

Software runs virtual rainfall across that map, letting water settle into every low point, which shows where puddles will form.

03

Pre-treat the sites

The drone returns and places a targeted dose of larvicide on each predicted spot, while the ground is still dry.

04

Break the cycle

When rain fills those spots, the larvicide is already there, so larvae can't mature and the breeding cycle stalls.

Interactive model

Find the water before it falls.

This is the whole idea in miniature. Scan a fresh patch of ground, spot the low areas where rain will gather, send the drone to pre-treat them while it's still dry, then bring the storm and watch it hold.

1Scan
2Predict
3Pre-treat
4Rain
STATE READY
SITES
TREATED 0
Simulation
Predicted pooling Larvicide placed Survey drone
Press “Scan terrain” — the drone maps a fresh patch of ground.
The difference

One puddle, two outcomes.

The same rain-filled low spot, side by side. On the left, nothing was done ahead of the storm. On the right, SkyShield treated the ground first.

01Left untreated
A mosquito lays its eggs in the standing water.
02Pre-treated with SkyShield
The larvicide is already in the water as it forms.
Why we think it's worth building

What precision could change.

Here's what we're aiming for as we develop the idea, and why the approach seems worth pursuing.

01

Coverage at speed

A drone could map and treat a wide area far faster than a ground crew walking the same terrain on foot.

02

Ahead of the rain

Treating predicted pools before they fill aims to stop larvae in the first hours, before a population has grown.

03

Less chemical, better placed

Targeting only genuine pooling sites should mean far less larvicide spread across the area overall.

Where we are

The road from idea to impact.

Now

Concept & modeling

Designing the workflow and testing the flow-prediction logic in software. That's the stage you're seeing here.

Next

Prototype

Pairing LiDAR with a drone and validating the elevation maps against real ground.

Later

Field testing

Controlled trials with approved larvicide, measuring whether pooling predictions hold up after real storms.

Goal

Real-world use

Working with partners and regulators to run the routine where malaria risk is highest.

Help us find out
if this can fly.

SkyShield is early, and that's exactly when support matters most. Backing the concept helps fund the prototyping and testing that turn an idea into something real.