The Latest

Events

  1. Illinois: Crop Management Conferences, Jan. 20 – Feb. 10

    January 20 @ 8:00 am - February 10 @ 8:00 am
  2. Texas: Wild Pig Management Workshop, Luling, Feb. 9

    February 9 @ 8:00 am - 5:00 pm
  3. Ohio: Corn College Workshop, Greenville, Feb. 10

    February 10 @ 8:00 am - 5:00 pm
  4. Arkansas State Agribusiness Conference, Jonesboro, Feb. 10

    February 10 @ 8:00 am - 5:00 pm
  5. Texas: Feed-Grain Marketing Workshop, Amarillo, Feb. 10-11

    February 10 @ 8:00 am - March 11 @ 5:00 pm
  6. West Florida Crops Meeting, Jay, February 11

    February 11 @ 7:45 am - 12:00 pm
  7. Georgia: Ag Business Planning Workshop, Glennville, Feb. 11, 18

    February 11 @ 8:00 am - February 18 @ 5:00 pm
  8. Alabama-Florida Peanut Trade Show, Dothan, February 11

    February 11 @ 8:00 am - 5:00 pm
  9. Four States Agricultural Exposition, Texarkana, Feb. 11

    February 11 @ 8:00 am - 5:00 pm
  10. Ohio: Agronomy Workshops, Wooster, Feb. 15, 16

    February 15 @ 8:00 am - February 16 @ 8:00 am
  11. Louisiana: Irrigation Management Workshop, Marksville, Feb. 16-17

    February 16 @ 8:00 am - February 17 @ 8:00 am
  12. Tennessee: Irrigation Meeting, Somerville, Feb. 16

    February 16 @ 8:00 am - 5:00 pm
  13. Tennessee: Cotton Focus Meeting, Jackson, Feb. 18

    February 18 @ 8:00 am - 5:00 pm
  14. Illinois: Ag Tech Innovation Summit, Champaign, Feb. 18

    February 18 @ 8:00 am - 5:00 pm
  15. Texas: Oil, Gas Leasing Workshop, College Station, Feb. 22

    February 22 @ 8:00 am - 5:00 pm
  16. Texas: Wild Pig Management Workshop, Burnet, Feb. 24

    February 24 @ 8:00 am - 5:00 pm
  17. Virginia: USDA Agricultural Outlook Forum, Arlington, Feb. 25-26

    February 25 @ 8:00 am - February 26 @ 5:00 pm
  18. Georgia: Pest Manager Training, Forsyth, Feb. 25

    February 25 @ 8:00 am - 5:00 pm
  19. Tennessee: Winter Row Crop Marketing Meeting, Mason, Feb. 25

    February 25 @ 8:00 am - 5:00 pm
  20. Texas: Rice Technical Working Group, Galveston, March 1-4

    March 1 @ 8:00 am - March 4 @ 8:00 am
  21. Texas: Rice Technical Working Group Conference, Galveston, March 1-4

    March 1 @ 8:00 am - March 4 @ 5:00 pm
  22. Indiana Small Farm Conference, Danville, March 4-5

    March 4 @ 8:00 am - March 5 @ 5:00 pm
  23. Kansas: 103rd Annual Cattlemen’s Day, Manhattan, March 4

    March 4 @ 8:00 am - 5:00 pm
  24. Kentucky: Integrated Pest Management Training, Princeton, March 2

    March 6 @ 8:00 am
  25. Oklahoma: Irrigation Conference, Woodward, March 8

    March 8 @ 8:00 am - 5:00 pm
  26. Oklahoma: Pecan Management Course, Stillwater, March 8

    March 8 @ 8:00 am - 5:00 pm
  27. Missouri: Free Pesticide Collection Event, Portageville, March 12

    March 12 @ 8:00 am - 5:00 pm
  28. Florida: Carinata Summit, Quincy, March 15-16

    March 15 @ 8:00 am - March 16 @ 5:00 pm

 

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Florida Soybeans: Fall Armyworms Damage in Okaloosa

Ernst Undesser
By Jennifer Bearden, University of Florida June 20, 2014

Florida Soybeans: Fall Armyworms Damage in Okaloosa

Fall armyworms were found this week in a soybean field in Okaloosa County.  This pest can completely defoliate a field in a week.

Fall Armyworms overwinter in southern Florida and southern Texas. The moths or adult stage are strong fliers that disperse long distances across the Southeastern US over the summer.

Their life cycle includes egg, larva, pupa, and adult. The length of the life cycle depends on the time of year, from 30 days in the summer to 90 days in the winter.   Each female moth lays up to 2000 eggs in her lifetime. Each egg mass is laid on foliage and contain 100-200 eggs. Eggs only take 2-3 days to hatch during the summer.

        
         

The larval (worm) stage is the most damaging to crops. Larvae consume a lot of foliage and grow quickly, especially in the summer months. The face of a mature larva will have a light colored inverted “Y”. This stage usually lasts 14 days in the summer.  The larvae then spin a loose cocoon and pupate in the soil. In about 8-9 summer days, an adult moth will emerge. The adult moth then lives about 7-21 days, with the females laying eggs on favored food sources.

The fall armyworm has two host strains; one that feeds on corn, sorghum, and cotton, and one that feeds on turf, pasture grasses, and rice.  Dr. Rob Meagher, USDA-ARS, wants to know which strain feeds on soybeans. Samples will be taken and DNA obtained.

Scouting is in order for late planted soybeans and hay fields.  According to the Mississippi Soybean Insect Management Guide, treatment on young soybean plants should occur when the damage reduces the stand below the recommended plant population.  This will require frequent walks through the fields to scout for damage and armyworms.

Ernst Undesser
By Jennifer Bearden, University of Florida June 20, 2014