Jaiswal, A.K., Sharma, K.K., & Agarwal, S.C. 1998 An efficient and indigenous device for lac-insect pest management.. Tropical Science 38: 81-86.

Notes: A simple device is described which uses a size gradient and light attraction to separate predators, beneficial parasitoids (parasitizing predators of the lac insect) and inimical parasitoids of the Indian lac insect Kerria lacca. Used-up broodlac (twigs carrying resin encrustation with dead lac insects) is kept in a container and a meshed side unit separates the beneficial parasitoids which can be released to augment the natural population and control predators.