The invention discloses an effervescent granule containing chlorantraniliprole and
emamectin benzoate. The effervescent granule is mainly applied to control of
insect pests on crops. The composition comprises the effective components of 1-20% of chlorantraniliprole, 1-20% of
emamectin benzoate, 2-10% of dispersing agent, 1-5% of
wetting agent and 1-5% of stabilizer, and also comprises 0.5-20% of disintegrating agent, 5-20% of acid source, 5-20% of
carbon dioxide gas source, 0.01-2% of binder and the balance of
inert filler. The invention simultaneously discloses a preparation method of the effervescent granule. The method comprises the following steps: firstly, crushing raw materials into particles with the particle size of less than 10 microns by a
jet mill, and mixing by a mixer; and simultaneously adding binder
slurry, evenly mixing, and then
drying and screening to prepare the effervescent granule by an effervescent pelletizer. The effervescent granule is free of
pollution on environment, fast to disintegrate, accurate to meter and convenient to use. The insecticidal compound effervescent granule belongs to an environment-friendly
pesticide, and is free of three wastes in production and convenient to use.