The invention belongs to the technical field of agricultural biological control, and discloses a method for controlling summer shoots of Gannan
navel oranges by insects, which comprises the following steps: S1, in the early
germination stage of the summer shoots of the
navel oranges in early May, putting 3-4 Acrida cinerea imagoes every 8m according to the projection area of a tree crown; s2, in the summer
shoot germination peak period in the first ten days of June, the release amount of acrida cinerea is increased to 6-8 acrida cinerea per 8 m. By means of
shoot control mechanism innovation, grasshoppers specifically gnaw young
shoot growing points, side
bud germination is prevented from being stimulated, and the vicious circle of'more and more wipe 'is blocked from the biological level; the shoot control efficiency is increased, the shoot control rate can reach 99.2% or above by the putting amount of 3-4 shoots per 8m, and the whole summer shoot growing period is covered continuously and periodically; the feeding rate of old leaves is strictly controlled to be 3.6% or below, the influence on the
photosynthesis of a tree body is avoided, a precise shoot control technology is achieved based on biological habits, efficient and safe shoot
control treatment is achieved, the survival conditions of
diaphorina citri are worsened, the occurrence of the Huanglongbing is reduced, and the
economic benefits of
navel orange planting are improved.