Integrating　pesticides　and　mineral　elements　into　a　multi-functional　stimuli-responsive　nanocarrier　can　have　a　synergistic　effect　on　protecting　plants　from　pesticides　and　the　supply　of　nutrients.　Herein,　a　pH　dual-responsive　multifunctional　nanosystem　regulated　by　coordination　bonding　using　bimodal　mesoporous　silica　(BMMs)　as　a　carrier　and　coordination　complexes　of　ferric　ion　and　polymethacrylic　acid　(PMAA/Fe3+)　as　the　gatekeeper　was　constructed　to　deliver　prochloraz　(Pro)　for　the　smart　treatment　of　wilt　disease　(Pro@BMMs-PMAA/Fe3+).　The　loading　capacity　of　Pro@BMMs-PMAA/Fe3+　nanoparticles　(Nps)　was　24.0%　and　the　＂PMMA/Fe3+＂　complexes　deposited　on　the　BMMs　surface　could　effectively　protect　Pro　against　photodegradation.　The　nanoparticles　possessed　an　excellent　pH　dual-responsive　release　behavior　and　better　inhibition　efficacy　against　Rhizoctonia　solani.　Fluorescence　tracking　experiments　showed　that　Nps　could　be　taken　up　and　transported　in　fungi　and　plants,　implying　that　non-systemic　pesticides　could　be　successfully　delivered　into　target　organisms.　Furthermore,　BMMS-PMAA/Fe3+　nanocarriers　could　effectively　promote　the　growth　of　crop　seedlings　and　had　no　obvious　toxicological　influence　on　the　cell　viability　and　the　growth　of　bacteria.　This　study　provides　a　novel　strategy　for　enhancing　plant　protection　against　diseases　and　reducing　the　risk　to　the　environment.