Persistence of Bacillus thuringiensis deposits in a hardwood forest, after aerial application of a commercial formulation at two dosage rates

K. M S Sundaram, A. Sundaram, B. D. Hammock

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

A commercial formulation of Bacillus thuringiensis var. kurstaki (BTK) was sprayed aerially in an oak forest in Wayne County, Pennsylvania during May 1990. BTK persisted in foliage for about a wekk in all blocks. The half-life of inactivation, DT50, ranged from 12-22 h. Immunosassay data indicated a shorter duration of persistence (2 d) of the delta endotoxic protein, with DT50 values ranging from 10-15 h. Formulation ingredients present in Foray 48B played a role in the toxicity of BTK to gypsy moth Lymantria dispar larvae. -from Authors

Original languageEnglish (US)
Title of host publicationJournal of Environmental Science & Health, Part B
Pages5
Number of pages1
EditionB29
StatePublished - 1994
Externally publishedYes

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

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    Sundaram, K. M. S., Sundaram, A., & Hammock, B. D. (1994). Persistence of Bacillus thuringiensis deposits in a hardwood forest, after aerial application of a commercial formulation at two dosage rates. In Journal of Environmental Science & Health, Part B (B29 ed., pp. 5)