South Florida Pest and Disease Hotline

  • In Central Florida, whiteflies have increased to moderate levels in most crops.
  • Whiteflies in Southwest Florida are moderate and increasing on squash, cucumber, and watermelon. Associated virus TYLCV is low, but cucurbit crumple leaf virus and cucurbit yellow stunting disorder virus are increasing in cucurbits.
  • In Homestead, reports indicate increasing silverleaf feeding damage symptoms in squash.
  • In Central Florida, caterpillars remain at low to moderate levels in cucumbers and squash.
  • In Homestead, caterpillar populations in squash and cucumber are increasing. Reports indicate incidence of melon worms, pickleworms, beet armyworms, and fall armyworms. Aphids are also being reported as sporadic on squash and cucumber in the Homestead area.
  • Cucurbit leaf crumple virus (CuLCrV) and Cucurbit yellow stunting disorder virus (CYSDV) are increasing in Southwest Florida. Levels of incidence are variable across locations. Some mosaic virus has also been found in watermelon and squash.
  • In Homestead, new mosaic virus has been appearing in squash and cucumber fields with high whitefly populations.
  • In Southwest Florida, Gummy Stem Blight (Didymella bryoniae) is at moderate to high levels in watermelon and increasing.
  • In Southwest Florida, cucurbit downy mildew (Pseudoperonospora cubensis) has flared up in some watermelons and cucumbers and is at low to moderate levels overall.
  • There is some incidence of downy mildew on cucurbits in Homestead, which is expected to increase with recent cool and rainy days.
  • In Homestead, new incidence of Phytophthora occurred following the recent rains, primarily in squash.

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