Using Bufo gargarizans tadpole as the experimental material,acute and joint toxicity tests of cyhalofop-butyl and fenoxaprop-ethyl were carried out.

• 采用室内试验方法,以中华大蟾蜍蝌蚪为试验材料,研究了一种混配除草剂中的两种有效成分氰氟草酯和精恶唑禾草灵对蝌蚪的急性毒性和联合毒性。