Dairy Fly Parasites
Guaranteed Live
Fly Parasites are silent but deadly to flies.
Harmless to the Environment
Shipments on a Weekly Schedule


A high impact, low cost program to shut down fly emergence and achieve "the Yoder Effect" when the nuisance of flies is minimal.

Recommended Programs - Just Add Number of Cows and Zip Code

Calculate Your Fly Parasite Quantity

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June Special

The June Special provides 14 shipments of fly parasites for the cost of 12.  It is designed for impact immediately because the first shipment is doubled to put more parasites on the ground immediately as the flies are beginning to proliferate.  In essence you get two free shipments and one doubled.

In many areas of the country it serves as a total seasonal package covering the key fly months of June, July , August and into September.

Order  immediately to get it started.