The invention discloses an
insect-attracting microcapsule which can be used for sticky
insect boards, a preparation method and application thereof. In the present invention, double emulsions are firstly prepared by a one-
step method, and the double emulsions are polymerized into double-chamber microcapsules; then N-acryloyl
dopamine is grafted onto the microcapsule shell; finally, the attractant is loaded on the microcapsules to obtain
Insect-attracting microcapsules for sticky
insect boards. The microcapsule can realize simultaneous embedding of water-soluble substances and fat-soluble substances in the attractant, solves the problem of large volume of existing attractant carriers, and effectively reduces the usage amount of expensive attractants. The microcapsule has good
weather resistance and a stable structure, so that the attractant can be kept distributed stably, and the insect
attractor is more efficient. The introduction of
dopamine makes the microcapsules have strong adhesion, which can be closely combined with the sticky
shellac without affecting the stickiness of the sticky
shellac. Spraying the
aqueous solution of the microcapsules on the sticky insect glue of the sticky insect board can realize long-term pest
trapping with stable release of lure.