What's with the needle hanging on the tree?

Chinese scientists have found that in the prevention and control of tree diseases and insect pests, we can learn from the principle of human intravenous infusion and drop drugs directly into trees, which can also produce good control effects. Experiments have proved that hanging needles on trees to control pests and diseases can not only effectively remove bare pests, but also make those pests who drill into the trunk and hide in the leaves have nowhere to escape. ?

The research results of "self-flowing trunk injection technology" launched by Northwest A&F University have recently passed the technical appraisal organized by Shaanxi Provincial Science and Technology Department and other departments, and their "self-flowing trunk injection device" has also obtained the national patent.

Experts of the appraisal committee believe that this technology is the first at home and abroad, and it is a brand-new method to control tree diseases and insect pests, reaching the international leading level of similar research, which will play a significant role in promoting the development of forestry in China, especially the ecological environment construction in northwest China.