FGMN Nursery
Rove Beetle For Fungus Gnat Control
Rove Beetle For Fungus Gnat Control
Dalotia coriaria, the rove beetle, is a fast-acting soil predator for fungus gnats, shore flies, and thrips pupae. It hunts fungus gnat larvae and moves quickly through the top layers of moist substrate, often underground and out of sight. This beetle thrives in peat, coco, leaf litter, and worm castings—basically any moisture-rich organic matter. It lives in the top 1–2 inches of moist soil, mulch, or substrate and begins hunting immediately on arrival, with a lifespan of about 3–4 weeks and eggs reaching adulthood in under 3 weeks. It is mostly nocturnal.
Use it as both a treatment and prevention: preventative applications use 1 beetle per sq ft every 4–6 weeks, while active infestations call for 1–5 beetles per sq ft depending on severity. Apply directly to the substrate—no burying or prep needed—and distribute across beds, pots, or propagation trays. It can be combined with nematodes or soil mites, and it complements foliar predators like Swirskii and Andersoni (though it does not hunt adult thrips). Dalotia starts hunting immediately on arrival and, if conditions are right, will reproduce and persist. You may not see them often, but you’ll know they’re there.
📋 Product summary:
- Primary targets: fungus gnat larvae (primary), shore fly larvae (added bonus), thrips pupae in soil (not adult thrips)
- Mostly nocturnal, fast, ground-hunting in the top-layer substrate
- Thrives in peat, coco, leaf litter, worm castings; active in the top 1–2 inches of moisture-rich substrate
- Lifespan ~3–4 weeks; eggs to adults in under 3 weeks; can reproduce and persist under proper conditions
- Preventative use: 1 beetle per sq ft every 4–6 weeks; Active infestation: 1–5 per sq ft depending on severity
- Apply directly to substrate; distribute across beds, pots, or propagation trays; can be combined with nematodes or soil mites
- Complements foliar predators like Swirskii and Andersoni; note: does not hunt adult thrips
- Dalotia starts hunting immediately on arrival
| Pest | Notes |
|---|---|
| Fungus gnat larvae | Primary target. Lives to destroy them. |
| Shore fly larvae | Added bonus—will clean up moist trouble zones. |
| Thrips pupae (in soil) | Complements foliar predators like Swirskii and Andersoni. |
| Use Case | Application Rate |
|---|---|
| Preventative | 1 beetle per sq. ft., every 4–6 weeks |
| Active infestation | 1–5 beetles per sq. ft., depending on severity |
| Feature | Advantage |
|---|---|
| Speed | Unlike mites, they cover real ground and chase prey |
| Target-specific | Especially lethal to fungus gnat larvae |
| Reproductive | Builds population over time, unlike nematodes |
| Humidity-flexible | Doesn’t need ultra-humid conditions to work |
| Cooperative | Plays well with mites, nematodes, and other biocontrols |
| Efficient | Active hunters that don’t wait for pests to walk by |
| Factor | Ideal Range |
|---|---|
| Temperature | 68–85°F |
| Humidity | Flexible; 50–80% preferred |
| Light Sensitivity | Shy during the day, active overnight |
| Substrate Type | Peat, coir, compost, worm castings, etc. |
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📦 Nationwide shipping policy & returns
📦 Nationwide shipping policy & returns
NATIONWIDE SHIPPING:
Some free shipping products may be limited to the lower 48 states, as indicated by our shipping estimator tools and checkout cart. Outdoor living, home, and garden items ship nationwide. Standard shipping fees are confirmed at checkout based on your address and provider selection. Free shipping items incur zero fees at checkout. Tracking details are emailed instantly upon order fulfillment.
NATIONWIDE SHIPPING RETURNS: 30 day returns.
We accept returns of unused products that are defective or not defective. Your return must be processed within 30 days of the date of purchase. We do not process exchanges. We will provide a shipping label by email, you are responsible for bringing the return to the shipping provider.
FREIGHT PRODUCT RETURNS: no returns or exchanges.
There are no returns, exchanges or refunds for products delivered via freight. REFUNDS: The cost of the return shipping and a 6% credit card processing/restocking fee will be deducted from your refund amount. The refund balance will be distributed to you once the returned product is received and processed.
NATIONWIDE PRODUCT REFUNDS:
The cost of the return shipping and a 6% credit card processing/restocking fee will be deducted from your refund amount. The refund balance will be distributed to you once the order is canceled and the returned product is received and processed.
Let customers speak for us
Plant was well packed and shipment was very fast. Received a very nice fully rooted plant in the pot!
The organic garden soil is doing very well in my garden bed. The company was professional, nice, and accommodating to my needs. They provide many types of things for your landscaping at a reasonable price.
Product was delivered promptly and the quality of the product was very good, as hoped for. I was thrilled to receive the product so quickly! Thank you!
Product is great. Didn't care for having to pay am extra $17 tariff to UPS to get it delivered, but I guess that's not your doing. Thank you Mr. President.
My new babay arrived safely and only lost two little leaves so far. The first one I ordered from different shop arrived with two leaves attached that fell off within ten minutes of unboxing and 22 leaves that had came off during shipping. So glad she arrived looking as beautiful as i was hoping. Also had a surprise red arrow syngonium cutting that’s beautiful. Also customer service was amazing. Will definitely order from them again. Hoghly recommend this shop.
Great flag and it works well on our hangar ceiling. A little worried it wouldn't arrive in time for our event but it did.
Enjoyed putting them together
I think I’m in love! This beauty came delicately packaged. Seemed to have no stress at all from shipping. I live in Miami, I was worried about shipping all the way from California. To my surprise she arrived well taken care of already. I can tell this grower takes pride in caring for these babies. Shipping was fast. I just ordered again same day!
Great service and great product. Delivery was quick. Good communication.
lovely olive jar, attractive to keep on display. And useful too.
Fast delivery . Product exactly matches description. Easy to contact with same day replies. We will use them again.
Great job from growing to shipping
Quality was excellent. Perfect for my Dad’s grave site, honoring a proud Marine.
Appreciate the extra effort to get the product to me when needed. The delivery was made with speed and consideration, very much appreciated
Very nice slim design. They hold the poles close to the wall and well organized. Very simple install
