Week of July 7 – 11 Scouting Report Summary


  • Cole crops: Cabbage, Cauliflower and Broccoli:  Most cole crops look good.  Imported cabbage worm larvae and cabbage looper were found in some fields at low levels.
  • Onions and Garlic: Thrips are generally present but at low levels, well below threshold.  Botrytis leaf and neck rot are present in some plantings.
  • High tunnel tomatoes: Botrytis, early blight and fusarium wilt have been found.  Timber rot is being identified in some high tunnels.  This week scouts found climbing cutworm, tomato fruitworm and corn borer larvae all attacking tomato fruit.
  • Field tomatoes:  Bacterial speck, spot and canker all being found.  Early blight and septoria leaf spot incidence is increasing.  Timber rot on a few plants was found.  Blossom end-rot is also being found.
  • Sweet corn: Corn is silking and corn pollination is underway in some plantings.  Corn borer damage was noted, still below economic treatment threshold.  Corn borer moth counts are very low, probably between generations.  Although no corn earworm moths have been caught in pheromone traps,  scouts did find a corn earworm larva in some silking corn.
  • Cucumbers:  Cucumber beetles being found.  Some bacterial wilt symptoms are being observed in older plantings.  Angular leaf spot, a bacterial disease, is common in many plantings.
  • Zucchini and Summer Squash:  Cucumber beetles are light in most fields.  Japanese beetles are present and feeding at low levels.  Squash bug adults and eggs can be seen in some fields at low levels.  Angular leaf spot is common and some powdery mildew has been found.  Blossom end rot can be found as well.
  • Winter Squash and Pumpkins:  Cucumber beetles were at low levels along with Japanese beetles.  Angular leaf spot is common and anthracnose is also being found.
  • Melons: Anthracnose and bacterial wilt have been found.  Angular leaf spot has also been detected by scouts and confirmed with lab diagnosis.
  • Potatoes:  Colorado potato beetles (CPB) and leaf hoppers were light in fields scouted this past week.  Some early blight has been found.
  • Peppers:  Bacterial spot was found in several pepper plantings this past week.  Cercospora leaf spot is present in some plantings.
  • Eggplant: Potato leaf hopper (PLH), CPB, and Japanese beetles were all found on eggplant.  Some plantings exhibited heavy defoliation damage due to CPB feeding.
  • Green/Snap Beans:  Bean leaf beetles were very light, Japanese beetle feeding damage ranged from light defoliation to moderate defoliation.

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