This document discusses various abiotic and nutritional deficiencies that can affect plants. Abiotic diseases are caused by non-living factors like temperature, water, soil chemicals, and mechanical damage. These stresses can weaken plants and make them susceptible to pathogens. Common nutritional deficiencies affect nitrogen, phosphorus, potassium, magnesium, iron, calcium, boron, sulfur, copper, manganese, zinc, and molybdenum. Deficiencies typically cause chlorosis or necrosis of leaves, starting with older or younger leaves depending on the nutrient. Other abiotic issues covered include blossom end rot, edema, frost damage, heat stress, herbicide damage, leaf scorch, salt injury, and sunlight damage.

1. Abiotic Diagnosis Nutritional Deficiencies

7. Nitrogen Deficiency

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11. Phosphorus Deficiency

14. Potassium Deficiency

16. Magnesium Deficiency

22. Calcium Deficiency

25. Boron Deficiency

38. Molybdenum in Poinsettia

42. Edema

44. Frost Damage

46. Cold damage to new Spruce growth

48. Phenoxy Herbicide Damage

49. Glyphosate Herbicide Damage

52. Scorch on Spruce

56. Salt Injury - Deicing

60. Sunscald on Tomato

64. Winter Burn

68. Winter Burn

69. Winter Burn on Norway Spruce

70. ID Nutritional Deficiency

71. Affecting bottom leaves

73. Other Abiotic Diseases