Crickets can survive without food for about one to two weeks, depending on various factors such as their species, age, and environmental conditions. Generally, adult crickets can go without food for a shorter period than younger ones, as adults often have higher energy demands.
Temperature and humidity also play significant roles in their survival. In warmer conditions, the metabolism of crickets increases, making them require more food and water, which can shorten how long they can live without sustenance. Conversely, in cooler or more humid environments, they may last a bit longer without food.
It's important to note that while crickets can endure a period without food, dehydration poses a far greater risk to their survival. Crickets can only go a few days without water, so ensuring they have access to moisture is crucial for their health and longevity. If you're keeping crickets as pets or for other purposes, it's best to provide them with a constant source of food and water to ensure they thrive.