The wood moth larvae, commonly known as the drilled heartworm, is a highly hazardous pest in the production of blueberries. The dryness of the blueberry branch, the destruction of the wood structure and the disruption of the transportation of moisture and mineral nutrients have resulted in the weakening, decaying and death of the affected branch. Without timely prevention, large-scale outbreaks of boreal worms could lead to the destruction of gardens. We will therefore proceed with a presentation on the hazard characteristics, patterns and methods of prevention of drilled heartworms on blueberries, with a view to taking effective measures to combat them, reduce the economic losses of growers and guarantee their safe production。
I. Hazard characteristics
The borer drilled the dry branches, damaged the wood sector, was left empty in the centre of the branches, was prevented from transporting nutrients and water, and eventually died of the leaves. The face of the dead leaves is unscathed, the leaves are more flat, and granular dung is often visible under the dead branches。
Drill bugs kill the leaves
Particle worm dung
The drill bugs make the branches dry
Blueberry driller
The tree trunk internalizes the calcium
Ii. Patterns of occurrence
Orient moths, most of them two-year-olds and very few of them, have a larvae (drilling heartworms) of 3 to october, and most of them appear in april to july, with a maximum of october. The ostrich moth moves its larvae in the trunks over the winter and the sorghum, which creeps to the faeces before it is plumeed by a back prick. The mating takes place on the night after the plume and can be repeated. Many eggs are laid at night along the edges of a crack in the bark, wound or rotting hole. The life of adult worms ranges from 3 to 10 days and rises from day to night, with greater lighting。
Iii. The response
The borer is a worm that is dry and, once drilled into the trunk, the difficulty of combating it becomes much greater. In other words, prevention is the main focus, with comprehensive measures:
Light booby traps: using the radiantity of moths, in april-october, yellow booby traps were used in orchards。
Sexual seduction: during plumeization (starting in mid-april), formulation of sexual inductions and entrapment。
3. Drug control:
(b) in the early stages of the attack, the use of “national photopropyl phosphorus” or “national phototoxic gun” was used to prevent the insects from escaping by injecting the fluid into insects and poisoning the larvae that had been dumped into the cadres (injecting the larvae with mud)
In plume, the biopesticide “national golden body” is treated 300-500 times as a pest。
The branches found to have died as a result of the drilling of heart worms need to be cut off in a timely manner and brought out of the orchard for central destruction。
Carnation: this programme is for reference purposes only, and the specific management and product use concentrations should be adjusted to the blueberry growing environment, planting management measures, climatic conditions, etc.; initial use should be done with light technicians from the consulting country and then expanded after a small area test has been successful. The country is committed to serving a wide range of blueberry growers and, in case of doubt, calls are welcome for discussion。
