西马津是一种具有高度选择性的除草剂。利用西马津防除玉米田的杂草,在国内各地已进行不少试验。我们在佳木斯农校果园,试用西马津防除苹果树的杂草,也收到了良好的效果。所用西马津(2-氯-4,6-双-(2氨基)-均-三氮苯)为含有效成分50％的可湿性粉剂(日本进口)。防除苹果树及园 Symazu is a highly selective herbicide. The use of Symazole to control weeds in corn fields has been carried out in many parts of the country. We at the Jiamusi School of fruit orchard, try Xima Jin weed control apple trees, also received good results. The simazine (2-chloro-4,6-bis- (2 amino) -s-triazine) was used as a wettable powder containing 50% of the active ingredient (imported from Japan). Control of apple trees and gardens