Module VI: Nutrient Deficiency Symptoms Lesson 4: Deficiency Symptoms of Micronutrients Unit 4: Copper Deficiency Symptoms After completing this Unit you should be able to answer 1. Describe the leaf symptoms due to molybdenum deficiency in chili pepper? 2. What is the typical leaf symptom due to copper deficiency? Module VI: Nutrient Deficiency Symptoms Lesson 4: Deficiency Symptoms of Micronutrients Unit 4: Copper Deficiency Symptoms A deficiency of copper depresses growth and affected chili pepper plants become stunted (right) with thin stems and pale green foliage. The symptoms appear only on leaves which are still within the whorl (left)and on young mature leaves. Module VI: Nutrient Deficiency Symptoms Lesson 4: Deficiency Symptoms of Micronutrients Unit 4: Copper Deficiency Symptoms In mild deficiencies, the leaves turn pale green in color and an interveinal pale yellow chlorosis develops at the base of the blades. The whorl of expanding leaves may remain tightly rolled and become bent to one side. Module VI: Nutrient Deficiency Symptoms Lesson 4: Deficiency Symptoms of Micronutrients Unit 4: Copper Deficiency Symptoms When the deficiency is severe, a pale brown necrosis develops at the tips of the youngest leaves. The affected leaf tips wither and die, often twisting into a spiral shape. Brown necrotic tip on the blade of a young copper-deficient leaf Module VI: Nutrient Deficiency Symptoms Lesson 4: Deficiency Symptoms of Micronutrients Unit 4: Copper Deficiency Symptoms With this, the Unit 4 on Copper Deficiency Symptoms in chili pepper in this Lesson concludes. In the last Unit in this Lesson deficiency symptoms of manganese in chili pepper are explained.