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Erwinia stewartii
PSU Entomology — Most of you are aware of the insecticide Admire or Provado (active ingredient is imidacloprid), for control of Colorado potato beetle and striped cucumber beetle. There is another beetle group - the flea beetles - on which this material is quite ...More…
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Erwinia Soft Rot
University of California IPM — The disease is not easy to detect until the rot is well advanced. The vascular tissue of the root becomes discolored and a pinkish to red brown rot develops. Root symptoms vary from a soft rot to a dry rot; the root may become hollow without ...More…
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Pathogen: Erwinia (Pectobacterium) spp.
University of California IPM — Bacterial soft rot first appears as rapid desiccation of youngest leaves. A soft, watery rot of leaf tissue occurs inside the leaf whorl. The rot, which has an unpleasant odor, may kill the growing point of the plant. The disease is most commonly ...More…
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Pathogen: Erwinia amylovora
University of California IPM — Fire blight causes blossom clusters to wilt and collapse in late spring. A brownish, sticky exudate is produced from diseased tissue. The tips of infected young succulent shoots curve into a characteristic shepherd's hook. Erwinia amylovora ...More…