Published October 26, 2026 · The Cricket Depot, San Antonio, Texas
On a warm Texas evening, crickets seem to be everywhere: under porch lights, in the garage, in the grass. It is natural to wonder whether you could save money by catching a few for your lizard or frog. Many reptile vets and experienced keepers advise against it. This article explains the general reasons, in plain terms, and what farm-raised crickets offer instead. It is general information, not veterinary advice; if your pet may have eaten wild insects and seems unwell, contact your vet.
Wild crickets are not the same insect
First, the crickets you find outdoors are often not house crickets. In much of the US, the common outdoor crickets are field crickets and other species, and you might also catch camel crickets, grasshoppers or other insects that look similar. Different species have different sizes, shells and behavior. Some wild-caught insects may also be unpleasant or even harmful for certain animals to eat. With a farm-raised order, you know exactly what species and size you are feeding.
Pesticides and chemical exposure
This is the risk most keepers worry about. Lawns, gardens, farm fields, foundations and the edges of homes are commonly treated with insecticides and other chemicals. A cricket that has been exposed may not die right away, and you cannot tell by looking at it. Crickets drawn to lights near homes and businesses are especially likely to have come from treated areas.
Small animals eat many insects relative to their body size, so the general concern is that chemical residue in or on prey could add up. Exactly how much risk a particular wild cricket poses is impossible to know, which is exactly the problem.
Parasites
Wild insects can carry parasites, and some of them can be passed on to the animals that eat them. Insects can act as hosts in the life cycles of various internal parasites, including some worms, and they may carry other organisms picked up from soil, animal droppings or decaying matter outdoors. Reptiles and amphibians can also carry parasites from other sources, so wild insects are not the only route, but they are an avoidable one.
Parasite problems in pets are not always obvious at first. If you notice weight loss, changes in droppings, loss of appetite or lethargy, a vet can check a fecal sample. Many keepers schedule routine fecal checks anyway.
Unknown diet and condition
A wild cricket's diet is a mystery. It may have been eating anything from decaying plants to garbage. It may be old, injured or sick. You cannot gut-load it in advance in any meaningful way, because you do not know when it last ate or what it ate. Farm-raised crickets, by contrast, are raised on a known diet and can be gut-loaded at home before feeding, as described in our gut-loading guide.
Size and supply problems
Even setting aside safety, wild crickets are hard to use as a staple. You get whatever sizes happen to be around, often too big for babies, and supply disappears in cold weather or a dry spell. Pets do best with a steady, predictable diet. A farm can supply the right size year-round, and our sizes guide explains how to match size to your animal.
Why farm-raised is the safer choice
- Known species: farmed house crickets, every time.
- Controlled environment: raised indoors in bins, not on treated lawns.
- Known diet: fed a consistent feed, so you start with a healthier cricket.
- Consistent sizes: sorted by age, from pinhead to adult.
- Year-round supply: available in every season.
To be fair, "farm-raised" is not a guarantee of perfection. Any livestock, including insects, can have health problems, and farms vary in their standards. Buy from a supplier you trust, check that crickets arrive active and healthy, and keep them in a clean setup at home.
Please do not release extras either
The flip side of this topic matters too. Farm-raised house crickets should not be released outdoors. They are not native to Texas, and releasing captive animals of any kind can introduce disease to wild populations. Our article on crickets in nature explains why.
What about other wild insects?
The same general reasoning applies to most wild-caught insects, not just crickets. Some insects are well known to be dangerous for reptiles to eat. Fireflies, for example, are widely reported among keepers and vets to be toxic to bearded dragons and other lizards, and they should never be offered. Other insects may sting, bite, carry irritating chemicals or simply be hard to identify. Some keepers do feed carefully chosen wild insects from areas they are certain are untreated, but it requires real knowledge of local species and land use, and it still carries the parasite question. For most pet owners, the simplest and safest approach is to feed insects bred for the purpose and to ask a vet before offering anything new.
The bottom line
It also helps to think about consistency over time. A pet that eats a few hundred insects a year from a known source gives you, and your vet, a much clearer picture if a health problem ever comes up. When the food is predictable, it is easier to rule diet in or out and focus on other causes. That peace of mind is a large part of why keepers choose farm-raised feeders.
Catching crickets with your kids is a great way to learn about insects. Feeding them to your pet is a different matter. For the general reasons above, most keepers feel the small savings are not worth the unknowns. If you have questions about your animal's specific risks, your reptile or exotic-animal vet is the person to ask.