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Nutrition Management for Mite Infestations

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Why do growers see mite populations soar as temperatures get higher? In this webinar, John Kempf describes what causes mite populations to explode and how to control mites with nutritional inputs. He will illustrate why high temperatures cause plant ammonium levels to increase and describe how these high levels influence mite populations. If you’ve experienced mite issues, whether from high temperatures or other causes, this webinar will provide actionable information on:

• The conditions that are vulnerable to exploding mite populations
• The causes of these conditions
• The nutritional inputs that can reverse mite infestations

The video presentation can be viewed at

Publicado en: Ciencias
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Nutrition Management for Mite Infestations

  1. 1. NUTRITION MANAGEMENT FOR MITE INFESTATIONS A Webinar Hosted by AEA Featuring John Kempf
  2. 2. Mites are attracted to high levels of ammonium in plant sap.
  3. 3. Spider Mites on Corn
  4. 4. Plant sap at mite presence:
  5. 5. ●Forage Foliar Blend ●SheaShield ●Rebound Manganese ●Rebound Zinc ●Rebound Iron Applied through pivot
  6. 6. This image shows dead spider mites on the corn after the foliar application.
  7. 7. The spider mites disappeared and did not reappear all season. The grower harvested 215 bushels organic corn.
  8. 8. Mites on Zee Lady Peaches in July 2020
  9. 9. Plant sap at mite presence:
  10. 10. Plant sap in July 2019, no mites present:
  11. 11. Plants accumulate ammonium under these conditions: 1. Excessive ammonium applications 2. Saturated soil 3. High leaf temperatures
  12. 12. Application of more nitrogen than the plant can metabolize and convert to proteins leads to heightened ammonium levels. Photo Credit: William Reid, Northern Pecans
  13. 13. Nitrogen present in wet soil converts to ammonium. (This is why rice and blueberries are adapted to only absorb NH4.)
  14. 14. During high leaf temperatures, plants switch from photosynthesis - dominant to photorespiration - dominant
  15. 15. During photorespiration-dominance plants sustain themselves with energy from protein catabolism rather than from sugars.
  16. 16. Mite Prevention 1.Reduce leaf temperature 2.Manage nitrogen applications with precision
  17. 17. Manage leaf temperature by increasing plant lipids.
  18. 18. Apply minimal amounts of nitrogen as indicated by sap analysis.
  19. 19. ●Carbohydrates ●Magnesium ●Sulfur ●Molybdenum ●(Nickel, in some situations) Nutrients required to convert ammonium to proteins quickly:
  20. 20. AEA product recommendations: ● PhotoMag ● Rejuvenate ● SeaStim
  21. 21. 1. How to Stabilize Nitrogen, Increase Fertilizer Efficiency, and Prevent Nutrient Leaching with Regenerative Agriculture 2. How to Manage Salinity in Irrigation Water and Increase Water Efficiency 3. The Bottom Line of Success for Regenerative Practices 4. How to Customize Your Farm’s Regenerative Program Virtual Event: Regenerative Agriculture on California Ranches August 2020 Watch for more information coming soon!
  22. 22. To prevent pest challenges by managing nutrition, reach the AEA team at