The present application relates to the technical field of
spirodiclofen pesticides, and specifically to a
spirodiclofen suspension, and its preparation method and application. The suspension comprises the following components:
spirodiclofen, auxiliary dispersant a, auxiliary dispersant b,
defoamer, thickener,
wetting agent, and the balance is water; wherein, the auxiliary dispersant a contains ester groups and amino groups, and the auxiliary dispersant b contains
ether bonds and hydroxyl groups. Weigh water,
defoamer, and
wetting agent, mix at
room temperature, and
record as liquid A; weigh spirodiclofen original
drug, auxiliary dispersant a, and auxiliary dispersant b, add to liquid A and mix to obtain liquid B; shear liquid B, then
grind and add thickener, and mix to obtain the spirodiclofen suspension. The present application improves the storage period and high temperature stability of the spirodiclofen suspension through auxiliary dispersant a, auxiliary dispersant b,
wetting agent,
defoamer, and thickener, and also increases its
retention time on citrus leaves, which has a positive effect on the prevention and control of citrus red spiders.