Inflorescence separation period is a very critical period for the occurrence and control of fruit tree pests and diseases in a year, and the overwintering pests and diseases begin to sting activities, if the pest control is done well during this period, the number of pests and diseases throughout the year can be greatly reduced.
The characteristics of pests and diseases in the inflorescence separation stage are:
Leaf-curling moths overwinter in bark cracks as larvae, and the inflorescence separation period is the peak of stinging activity.
The golden-veined moth overwinters in the form of pupa in the fallen leaves of the rolled up, and the inflorescence separation period is the peak period for the overwintering adults to lay eggs and hatch.
Scarabs, as larvae overwinter in the soil, and the adults begin to emerge during the inflorescence separation period to damage the flower buds.
Cotton aphids, which overwinter near tree wounds and underground roots, begin to be active at this time, and their numbers increase dramatically.
The two-spotted leaf mite overwinters in the bark cracks and soil with eggs and female adults, and this period is the peak period for egg hatching and female adults stinging and laying eggs.
The hawthorn red spider overwinters in the cracks of the bark with a female adult, which is the peak of its stinging and oviposition.
Powdery mildew, with hyphae overwintering on diseased buds, when the inflorescence is separated, the diseased buds open, and the mycelium is exposed.
Inflorescence separation period is a variety of pests and diseases from the hidden state to the exposed state, and the number began to rise continuously, at this time spraying, the agent is relatively easy to contact the body of pests and diseases, the control effect is good, and the operation is convenient, at present, the fruit area gradually began to enter the inflorescence separation period, I hope that the majority of fruit farmers according to the actual situation of their orchards, do a good job in prevention and control.
Author: Zheng Ke, Zhongnongle Market Center
Source: Zhongnongle