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lesser cornstalk borer

Moth numbers continue to rise across Alabama. Below are total number of moths captured across 20 location using sticky wing pheromone traps.  Numbers indicate relative abundance for various moth species as of today.  Earlier IPM report was issued on June 16, 2020 – you can see the big jump in numbers in 15 days.  The high numbers below mean it is a good time for scouting for caterpillars especially if you are in South Alabama.

Numbers

The following are the number of moths recorded for each pest:

  • Beet armyworm = 345  (earlier report = 153)
  • Fall armyworm = 21  (earlier report = 15)
  • Southern armyworm = 101  (earlier report = 19)
  • Yellow-striped armyworm =  7  (earlier report = 5)
  • Cabbage looper = 70  (earlier report = 31)
  • Soybean looper = 14  (earlier report = 5)
  • Corn earworm = 10   (earlier report = 3)
  • Tobacco budworm =  12  (earlier report = 3)
  • Lesser cornstalk borer = 1420  (earlier report = 524)…major peanut pest – indicator of dry soil conditions
  • Squash vine borer = 34  (earlier report = 17)…major vegetable pest – indicator of dry soil conditions

Control for spider mites

Portal Miticide is now labelled for peanuts.  I have evaluated Portal for spider mite control in peanuts and vegetables over several years – it is a great product for high spider mite pressure conditions.  Remember that dry weather and pesticides aggravate spider mites. Read more about spider mite control (peanut IPM blog) or about scouting and control options. vegetable IPM blog).  To look at raw field data on Portal from peanut trials (funded by APPA and National Peanut Board),  see this article and journal papers. Read more about Portal here.

Resources

Consult the latest Peanut IPM Guide, the Southeastern Vegetable Production Handbook, or the Organic Vegetable Insecticides slide chart  for insecticide choices related to crops. More information is also available in the Alabama Extension webinar Quick Overview of Conventional Insecticides.

Before applying, make sure to read the product label and follow all application directions. Producers should plan to include insecticides from different chemical classes in their integrated pest management (IPM) strategies to avoid insecticide resistance and spider mite flare ups.

 

Featured image from Mark Dreiling, Bugwood.org

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