Preparation and insecticidal activities of betulin-cinnamic acid-related hybrid compounds and insights into the stress response of Plutella xylostella L.

The emergence and increasing intensification of insect pest resistance greatly shortens the service life of commercial insecticides. Hence, the continuous development of novel insecticides is extremely necessary. Discovering new insecticide molecules based on natural products with insecticidal activity has been a popular technique and has made outstanding contributions in this field.