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Step 2:
Collect Sample
& Prep Yard

Deadline on Checklist

Hello Mosquito G.R.I.D. Agent,

By now, your parent/guardian submitted the signed permission form.

Here is what you need to do next:


Watch the "Step 2" section of the video below for directions. Use the timestamps or chapters in the video description to start at Step 2. Before going outside, apply repellent or take other bite prevention measures.

Illustration of a girl holding a magnifying glass

Part 1:
Collect Water Sample

(If assigned by teacher)

Use the water sample kit (Resealable bag with clear, sample cup, lid, and dropper) to collect a sample from any trapped water you might find. You must do this BEFORE you dump out any water you find. Didn’t find water? You don’t need to submit a sample but remember to return the unused kit!

Illustration of a boy holding a pipette
Illustration of a closed Sample cup.
Illustration of a pipette

Part 2:
Clear the area around your home

Illustration of a hand tipping our water from a red cup

Tip out any trapped water remaining in containers onto the ground.

 

Since items that catch and hold water, whether they are wet or dry, will compete with your egg cup for the attention of any female mosquito, it's important to remove as many items as possible from your yard. Toss out any unused containers that might trap and hold water (even if they are currently dry). Ask for help from a family member if you can’t get rid of the water by yourself!

Illustration of a boy carrying common mosquito sources

Part 3:
Bring water sample Back to school on assigned date

(If assigned by teacher)

Photo of the Operation Mosquito G.R.I.D. drop box

Bring water sample back to school on or before scheduled school lab day.

 

No water? Congratulations! Return the unused water sample kit when you return your G.R.I.D. kit at the end of the project.

results

Microscope

See what agents are finding in their water samples.

Run into any other issues? Let us know by emailing at EcoHealth@sgvmosquito.org.

Thanks!

Agent Hagele and Agent Luna

G.R.I.D. Steps landing page

Still have questions?

©2025 by EcoHealth Vector Education

A program of the San Gabriel Valley Mosquito and Vector Control District

Ecohealth@sgvmosquito.org | Office: 626-814-9466 | Fax: 626-337-5686 

1145 N. Azusa Canyon Road, West Covina, CA 91790

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