Acaricidal activity of paste of methanolic extract of leaf of Azadirachta indica, Eucalyptus hybrid, Saraca asoca and Murraya koenigii against the bovine ticks in in-vitro condition

印度楝（Azadirachta indica）、桉树杂交种（Eucalyptus hybrid）、无忧花（Saraca asoca）和九里香（Murraya koenigii）叶片甲醇提取物糊剂在体外对牛蜱的杀螨活性