The invention belongs to the technical field of agricultural biological protection, and discloses a targeted screen tube-vector
insect lysozyme-nano
magnesium compound system and application thereof in prevention and control of
areca yellows, the
compound system comprises an in-
plant treatment module and a propagation blocking module, the in-
plant treatment module comprises a screen tube targeted delivery unit, and the propagation blocking module comprises a propagation blocking unit. The
sieve tube targeted delivery unit is formed by combining
betel nut
sieve tube navigation
peptide ArePEP1 and a
lysozyme-nano
magnesium complex through a non-
covalent bond; the propagation blocking module comprises an antifeedant micro-
capsule activated by salivary
enzyme of a vector
insect, and
phytoplasma deoxyribozyme PdeA and an
insect antifeedant are encapsulated in the antifeedant micro-
capsule; the target sequence of the
phytoplasma deoxyribozyme PdeA is 5 '-GGAAACAG-3'; the in-
plant treatment module and the propagation blocking module are jointly loaded on the same
delivery vehicle. According to the
areca yellows prevention and control
compound system and the application method, pathogens in plants can be synchronously inhibited, insect propagation can be blocked, and high-altitude accurate delivery can be realized.