
Like all bugs, black soldier fly larvae (BSFL) have a certain tolerance to heat and humidity. Ideally, you want your BSFL between 70 and 85°F with 50 to 70% humidity. Above 85, their metabolism will slow, and they’ll stop eating. Above 100°F, they will quickly start to die off. A hot summer day in the wrong conditions could easily kill your whole BSFL colony. If you can’t keep them inside, consider swapping out the normal lid for a mesh screen, or making air holes to promote ventilation. When making your compost bin, avoid black plastic. Check out our full write-up for all the tips on how to keep your BSFL cool in the summer.
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