Blankophor BBH as an enhancer of nuclear polyhedrosis virus in arborist treatments against the gypsy moth (Lepidoptera: Lymantriidae)

Doses of a commercial candidate formulation of gypsy moth nuclear polyhedrosis virus (LdMNPV) were applied with and without several concentrations of an enhancing adjuvant, Blankophor BBH, to individual trees against natural gypsy moth, Lymantria dispar (L.), populations. Amounts of Blankophor BBH a...

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Bibliographic Details
Published in:	Journal of economic entomology Vol. 89; no. 4; pp. 957 - 962
Main Authors:	Webb, R.E. (Insect Biocontrol Laboratory, Agricultural Research Service, Beltsville, MD.), Dill, N.H, McLaughlin, J.M, Kershaw, L.S, Podgwaite, J.D, Cook, S.P, Thorpe, K.W, Farrar, R.R. Jr, Ridgway, R.L, Fuester, R.W
Format:	Journal Article
Language:	English
Published:	Lanham, MD Entomological Society of America 01-08-1996
Subjects:	ADJUVANT Biological and medical sciences Biological control COADYUVANTES COMPOSE AROMATIQUE COMPUESTOS AROMATICOS Control CONTROL DE INSECTOS DEFOLIACION DEFOLIATION DENSIDAD DE LA POBLACION DENSITE DE POPULATION FORMULACIONES FORMULATION Fundamental and applied biological sciences. Psychology Lepidoptera LUTTE ANTIINSECTE LYMANTRIA DISPAR Lymantriidae MARYLAND MORTALIDAD MORTALITE nuclear polyhedrosis virus Phytopathology. Animal pests. Plant and forest protection Protozoa. Invertebrates QUERCUS VIRUS POLIEDROSIS NUCLEAR VIRUS POLYEDROSE NUCLEAIRE USA, Maryland Brightener Potentiation Entomopathogen Lymantriidae Disulfonic acid Insecta Biological control Stilbene derivatives Pathogenicity Virus Pest Microbiological control Arthropoda Lepidoptera Hardwood forest tree Invertebrata Lymantria dispar
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Summary:	Doses of a commercial candidate formulation of gypsy moth nuclear polyhedrosis virus (LdMNPV) were applied with and without several concentrations of an enhancing adjuvant, Blankophor BBH, to individual trees against natural gypsy moth, Lymantria dispar (L.), populations. Amounts of Blankophor BBH adhering to foliage after application were measured at 1,322, 227, and 37 microgram/g dry weight of leaf for the 0.5, 0.1, and 0.02% treatments, respectively. The highest dose of the candidate formulation used without the adjuvant failed to increase significantly 1st-generation after-treatment LdMNPV mortality (direct infection caused by feeding on applied virus) above background levels, to reduce late season (instars 5 and 6) larval populations in treated trees or to provide significant foliage protection. However, Blankophor BBH added to the tank mix at concentrations of 0.5 or 0.1% (wt: vol) resulted in significantly increased levels of 1st-generation after-treatment LdMNPV, significantly reduced late-season larval populations, and significant levels of foliage protection, compared with untreated control trees. The resulting recommended tank mix (0.1% Blankophor BBH and 2x 10(10) PIBs per 75 liters final spray solution per tree) should give excellent foliage protection against gypsy moth at a cost of about $3 per tree
Bibliography:	K01 9703449 H10 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0022-0493 1938-291X
DOI:	10.1093/jee/89.4.957