Author
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SHAPIRO, MARTIN |
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Submitted to: Journal of Economic Entomology
Publication Type: Peer Reviewed Journal Publication Acceptance Date: 8/28/1998 Publication Date: N/A Citation: N/A Interpretive Summary: The gypsy moth nuclear polyhedrossis virus (LdMNPV) is slow acting and is costly to produce. The addition of adjuvants or other viruses have been shown to increase the potency of several viruses. Two granulosis viruses, one from the bollworm Helicoverpa armigera and one from the fall army worm, Spodoptera frugiperda were shown to increase the potency of LdMNPY, when used together. The armigera GV was the superior Synergist and reduced both the LC(50) and LT (50) of the gypsy moth NPY. Combinations of both NPV and GV could be used to control gypsy moth populations, while reducing overall production costs. Technical Abstract: Two granulosis viruses (GVs) were tested as enhancers for the gypsy moth nuclear polyhedrosis virus (LdMNPV). Helicoverpa armigera (Hubner) GV (HaGV) had no detrimental effect upon larval growth and development but, in combination with LdMNPV, reduced both the LC(50) and the LT(50) for the NPV. In addition, the combination also adversely the growth and development of gypsy moth larvae. The LC(50) of LdMNPV was reduced by as much as 300-fold and the LT(50)was reduced by as much as 18% (HaGV at 1/100). Spodoptera frugiperda (J.E. Smith) GV (SfGV) reduced the LC(50) of LdMNPV by as much as 13-fold but had no effect upon the LT(50). Lymantria dispar, gypsy moth, granulosis viruses. |
