福美砷涂干治病须慎重福美砷是一种具有保护和铲除作用的杀菌剂。该制剂持效期长，在树皮死组织部位渗透力强，对苹果树腐烂病、轮纹病等枝干病害有很好的防治作用，在北方果树生产中广泛应用。但该制剂在使用不当的情况下有烧皮现象，轻则使树势衰弱，重者可造成死树，所... Fumei arsenic coating treatment should be cautious Fumei arsenic is a fungicide with the protection and eradication role. The preparation has long persistence period and strong penetration in dead tissue of bark, which has good prevention and cure effects on branch diseases such as apple tree rot disease and ring rot disease, and is widely used in the production of northern fruit trees. However, in the case of improper use of the preparation there is a burning skin phenomenon, ranging from the weakening of the tree potential, severe cases can cause dead trees, the ...