On May 18, Weihe Ecological Park, together with the Weibin District Forestry Bureau, released 15,000 flower velvet parasitic nails from 750 willow trees in the park from the Weihe Pedestrian Bridge to the Victory Bridge, "treating insects with insects" to biological control of the bare-shouldered star tianniu in the park.
What is the sacred side of the flower velvet armor that can declare war on the Tianniu, which is known as the "number one killer" in the plant world? Originally, the flower velvet parasite is the use of plants and tianniu released chemical information substances, to find the plants that the tianniu harms, and then lay eggs near the tianniu hazard point, and the hatched small larvae use their agile bodies to search independently to find the tianniu larvae, pupae or newly feathered adult insects, and immediately bite between the body nodes or under the wings of these hosts until the host dies. The velvet beetle larvae gradually grow and pupate, and in about 30 days they can feather into adults and fly out, and then mate and lay eggs to find new tianniu parasites.
In the process of on-site release, professional and technical personnel in accordance with the technical requirements for the release of flower wool nails, the flower wool nails are released in the shady section of the tree body, the cattle spawning groove and wood chips (insect feces) distribution dense section, and the amount of each tree is about 20. It is reported that this biological control method has achieved results in Beijing, Hangzhou and other places, and the effect of this launch test is worth looking forward to!
