What to Expect

Step 1: Request-A-Bug

Join the waitlist. Don’t delay! Submit your request as early as possible. Requests are fulfilled in order of date received and agent availability. Request-A-Bug

Step 2: Confirm Order & Pay

Insectary staff will contact you by email during the field season when agents are available and collect payment. View fees

Step 3: Fedex Shipment

Your order will arrive next day via FedEx after the payment is processed.

Step 4: Release

Time Sensitive! Be sure to release your live biocontrols ASAP or put them in the refrigerator. The biocontrol agents are ready to eat/attack your noxious weeds! Follow the release instructions provided in your shipment.

Step 5: Report & Return

Complete the data report sheet included with your order and return the sheet. You can help us continue to keep costs low and reduce waste by returning the cooler to the Insectary. Thank you!

Optional: Insectary staff can help you decide if you should place an additional order for the following year. All biocontrols should be established within a year and will overwinter in Colorado. Full effects typically take up to 3 years. Contact us.


Biological pest control agents are seasonally available to help suppress weed and insect pests in Colorado. They can be requested by private landowners in the State, or other government agencies concerned with controlling the spread of exotic invaders. Supplies can be limited and vary from one year to the next; thus, the Insectary cannot guarantee a release for each request submitted.

Please Do Not Send Payment Now. We will contact you to collect payment and coordinate shipping arrangements in season.

Private Land and Home Owners
Fee Description Season
N/A Canada Thistle (Not Available) N/A
$30.00 Dalmatian Toadflax May - June
$30.00 Diffuse Knapweed July - Aug.
$35.00 Field Bindweed June - Aug.
$30.00 Leafy Spurge June - July
$30.00 Musk Thistle June - July
$30.00 Puncturevine Sept.
$0.00 Russian Knapweed April - May
$30.00 Spotted Knapweed July - Aug.
$30.00 Yellow Toadflax May - June


Government & Institutional Customers ONLY

Contact the Insectary for more information about Subscription Service.

Fee Description
$100.00 5,000 Tamarisk beetles. Includes vial of pheromone to concentrate beetles at the release site. (July)
$0.00 Peach wasp ("Mac").



Outside the State of Colorado?

The Insectary works with federal and state institutions outside of Colorado. We do not work with private landowners outside of Colorado. If you are a private landowner, please contact your local state official.