Hotter temperatures may render natural insect repellents less effective against mosquitoes, according to a new study.

Hotter temperatures may render natural insect repellents less effective against mosquitoes, according to a new study.

A study found that heat reduces the effectiveness of natural mosquito repellents like citronella and catnip oil by desensitizing TRPA1, a receptor mosquitoes use to detect irritants. At temperatures ...