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Fly Parasites

Economic Impact

The negative impact of flies is well documented in scientific studies. The two major areas of concern in livestock and pets are stress caused by a high concentration of flies annoying the animals and the transmission of serious diseases.

The nuisance factor caused by flies is very easy to see and understand. Several species of flies feed on blood and high numbers of biting flies cause distress in animals. Non-biting flies are attracted by secretions from the animals and can be observed around the eyes and noses of the livestock. Horse owners use fly masks during the summer to keep flies away from the animal’s eyes.

The concentration of flies can be very high in areas where young animals are being raised. Young mammals are raised on mother’s milk and produce very nutrient rich manure that is very high in moisture content. Young poultry also are fed a very rich diet to encourage growth and their manure is also very high in nutrients and moisture. This medium is perfect for the reproduction of flies and the fly problem can be even more severe if the young are raised in heated enclosures.

It is not difficult to understand that stressed animals will not be as productive as non-stressed animals. Numerous studies have confirmed this fact and conclude that meat, milk and egg production of stressed animals is significantly reduced and estimate farm productivity is 2-5% higher where fly inducted stress is absent. Flies are responsible for significant reductions in the production of farmed meat and dairy products. It’s estimated that flies are responsible for global livestock and poultry production losses measured in the billions of dollars.

The economic significance of disease transmission is much greater and easier to comprehend. Biting flies transmit blood-borne diseases from one infected animal to another. Non-biting flies carry bacteria and viruses from animal to animal. This transmission within highly concentrated livestock can be rapid and devastating. Also of concern is the transmission of disease to humans and some reports state that flies are responsible for the transmission of over 50 diseases serious to humans.

We strongly recommend using a method that targets adult flies as part of your fly control program.

Please contact us for a NO OBLIGATION discussion on a customized fly control program utilizing fly parasites (1-888-668-7264).


We strongly recommend using a method that targets adult flies as part of your fly control program.

Please contact us for a NO OBLIGATION discussion on a customized fly control program (1-888-668-7264). We are not after a fast sell, but rather we hope to have a long-term satisfied customer.

Our business has grown across Canada virtually by word of mouth and we welcome all enquires. Our commitment to you is to create the BEST, MOST ECONOMICAL AND LONG-TERM BIOLOGICAL FLY CONTROL PROGRAM.

Recent Client Testimonials

We have been using fly predators every Summer for the past 7 or 8 years. I feel very fortunate to have found a reliable, cost effective local source of bugs. I can wholeheartedly recommend not only the bugs themselves as a very effective, environmentally friendly part of a fly prevention strategy, but also Good Bugs as a very reliable and friendly source of predators.

Amanda J Booth - DVM, MVetSc, Dip. ACVIM

Our neighbour was using fly parasites last year and raved about how they worked. We did notice fewer flies last year but thought it was just a natural occurrence. We decided to try the parasites this year and WOW. The flies at both of our barns are so low you hardly notice them - not like in previous years. We have been converted!

Alison Y. - Farmer