01428naa a2200229 a 450000100080000000500110000800800410001910000190006024501460007926000090022552007280023465000250096265000230098765300150101065300190102565300210104465300170106570000210108270000220110370000220112577300510114710128192018-08-13       1997    bl uuuu     u00u1 u    #d1 aMEDUGNO, C. C.  aEvaluation of a wettable powder formulation for nuclear polyhedrosis virus of Anticarsia gemmatalis (Lep.bNoctuidae).h[electronic resource]  c1997  aThe influence of different carriers on the physical and biological stability of Baculovirus anticarsia wettable powder formulations was studied. The formulations were obtained by mixing the purified polyhedra of Baculovirus anticarsia with a carrier and drying the suspension in a bench spray dryer. Bioassays with Anticarsia gemmatalis Hubner showed that activity was mantained with amorphous silica, attapulgite and kaolinite after a year of storage. In the presence of bentonite, activity declined 50% in the same period. All formulations, except kaolinite, mantained the physical parameters required of a good wettable powder. Kaolinite formulation showed reduction in wettability and particle agglomeration in storage.  astatistical analysis  aviral insecticides  aBiocontrol  aBioinsecticide  aChemical storage  aPurification1 aFERRAZ, J. M. G.1 aMAIA, A. de H. N.1 aFREITAS, C. C. L.  tPesticide Sciencegv.51, n.2, p.153-156, 1997.