Joint toxicity of Beauveria bassiana and two insect growth regulators,methoxyfenozide and hexaflumuron,on beet armyworm larvae,Spodoptera exigua(Hübner),we
[Objective] The aim was to discuss dynamic conditions for one rare regional rainstorm. [Method] By using conventional material, ground encryption automatic stat
Grub is one of the major pests affecting yield and quality of sweet potato.Although traditional chemical pesticides have quick effect,the disadvantages of high