South Florida Pest and Disease Hotline | Dec. 3, 2023

In the Homestead area:

  • Thrips parvispinus has been reported in very low populations and melon thrips populations are in the low to moderate range in squash.
  • Overall, whitefly population levels are increasing in all vegetable crops in the area. High levels of whitefly populations have been reported in squash.
  • A very low population of Asian Bean Thrips was reported in squash.
  • Worm populations are increasing in most crops.
  • Moderate levels of leafminer populations were reported in squash.

In Southwest Florida:

  • Crop scouts have reported an increasing number of broad mites on cucurbits.
  • Widespread Cucurbit yellow stunting disorder virus (CYSDV), squash vein yellowing virus (SqVYV), and cucurbit leaf crumple virus (CuLCrV) infestations have been reported on watermelon in multiple locations. Crumple virus and yellow stunt virus are now common in mature watermelon fields with low levels of vine decline.
  • Crop scouts have observed gummy stem blight reaching moderate to high levels in most of the watermelon fields.
  • Crop scouts have reported low infestation levels of Anthracnose caused by Colletotrichum orbiculare on watermelons.
  • Downy mildew infestation is expected to increase in melons due to the recent rain.

In the Florida East coast area:

  • Low numbers of melonworms were reported in squash fields.

In Central Florida:

  • Powdery mildew infestations in squash have been reported to be increasing from low to moderate levels.
  • Downy mildew infestations in cucumber and squash fields have been reported to be increasing from low to moderate levels.

Read More