Coconut Injuries, Symptoms

Coconut Injuries and Other Symptoms

Fig. 1
Lightning injury to coconut palm at Hilo municipal golf course

Cocos nucifera with "hookleaf", a mild syptom of B deficiency

Fig. 8

Cocos nucifera with "Hookleaf", a mild syptom of boron deficiency

Mild Magnesium Deficiency on Coconut Palm (Cocos nucifera)

Fig. 9

Mild magnesium deficiency on coconut (C. nucifera)

Nitrogen Deficiency on Coconut (Cocos nucifera)

Fig. 10

Nitrogen deficiency on coconut (C. nucifera)

Potassium Deficiency on Coconut palm (Cocos nucifera), Marginal Necrosis

Fig. 11

Potassium deficiency on coconut palm (C. nucifera), marginal necrosis

Potassium deficiency symptoms on older leaf of Cocos nucifera showing translucent yellow-orange spotting

Fig. 12

Potassium deficiency symptoms on older leaf of C. nucifera showing translucent yellow-orange spotting

Manganese deficiency on Cocos nucifera induced by composted sewage sludge in the backfill

Manganese deficiency on Cocos nucifera induced by composted sewage sludge in the backfill

Fig. 13

Manganese deficiency on C. nucifera induced by composted sewage sludge in the backfill

Fig. 14

Coconut: climbing spikes injury to stem

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Coconut Page

Lightning Injury


Fig. 2	Fig. 3	Fig. 4


Fig. 5	Fig. 6	Fig. 7

Fig. 2,3. Lightning injury to coconut palms: pith explosion through stem, Hilo municipal golf course
Fig. 4. Nut drop: a symptom of lightning injury to coconut
Fig. 5,6. Lightning injury to coconut palm. Hilo Municipal Golf Course, Hilo, Hawai'i Photographs were taken 7 days after lightning storm
Fig. 7. Lightning injury to coconut palms: burned and collapsed foliage, Hilo municipal golf course

Further Reading
Lightning Damage to Landscape Palms, University of Florida ^pdf
Lightning Injury to Plants, University of Hawai'i at Mānoa ^pdf

Nutrient Deficiencies

Boron (Fig. 8)
Boron Deficiency in Palms, University of Florida ^{pdf (Archived)}
Boron Deficiency in Palms in Hawai'i, University of Hawai'i at Mānoa ^pdf

Magnesium (Fig. 9)
Magnesium Deficiency in Palms, University of Florida ^pdf ^(Archived)

Nitrogen (Fig. 10)
Nitrogen Deficiency in Palms, University of Florida ^{pdf (Archived)}

Potassium (Fig. 11,12)
Potassium Deficiency in Palms, University of Florida ^{pd (Archived)}
Potassium Deficiency of Palms in Hawai'i, University of Hawai'i at Mānoa ^pdf

Manganese (Fig. 13)
Manganese Deficiency in Palms, University of Florida ^pdf

Iron
Iron Deficiency in Palms, University of Florida ^pdf

Further Reading
Normal "Abnormalities" in Palms, University of Florida ^pdf
Physiological Disorders of Landscape Palms, University of Florida ^pdf

Photographs

Fig. ¹ Nelson, Scot C. "Lightning injury to coconut palm at Hilo municipal golf course." Flickr, 2005, (CC BY-SA 2.0), flickr.com. Accessed 10 Mar. 2017.
Fig. ^2,3 Nelson, Scot C. "Lightning injury to coconut palms: pith explosion through stem. Hilo municipal golf course." Flickr, 2005, (CC BY-SA 2.0), flickr.com. Accessed 10 Mar. 2017.
Fig. ⁴ Nelson, Scot C. "Nut drop: a symptom of lightning injury to coconut." Flickr, 2006, (CC BY-SA 2.0), flickr.com. Accessed 10 Mar. 2017.
Fig. ^5,6 Nelson, Scot C. "Lightning injury to coconut palm. Hilo Municipal Golf Course, Hilo, Hawaii. Photograph was taken 7 days after lightning storm." Flickr, 2006, (CC BY-SA 2.0), flickr.com. Accessed 10 Mar. 2017.
Fig. ⁷ Nelson, Scot C. "Lightning injury to coconut palms: burned and collapsed foliage. Hilo municipal golf course." Flickr, 2005, (CC BY-SA 2.0), flickr.com. Accessed 10 Mar. 2017.
Fig. ⁸ Broschat, Timothy K. "Cocos nucifera with "Hookleaf", a mild syptom of boron deficiency." UF/IFA Extension, AskIFAS, edis.ifas.ufl.edu. Accessed 10 Mar. 2017
Fig. ⁹ Nelson, Scot C. "Mild magnesium deficiency on coconut (Cocos nucifera)." Flickr, 2003, (CC BY-SA 2.0), flickr.com. Accessed 10 Mar. 2017.
Fig. ¹⁰ Nelson, Scot C. "Nitrogen deficiency of young coconut palm." Flickr, 2003, (CC BY-SA 2.0), flickr.com. Accessed 10 Mar. 2017.
Fig. ¹¹ Nelson, Scot C. "Potassium deficiency on coconut palm (Cocos nucifera), marginal necrosis." Flickr, 2003, (CC BY-SA 2.0), flickr.com. Accessed 10 Mar. 2017.
Fig. ¹² "Potassium deficiency symptoms on older leaf of Cocos nucifera showing translucent yellow-orange spotting." UF/IFA Extension, AskIFAS, edis.ifas.ufl.edu. Accessed 10 Mar. 2017.
Fig.¹³ "Manganese deficiency on Cocos nucifera induced by composted sewage sludge in the backfill." UF/IFA Extension, AskIFAS, edis.ifas.ufl.edu. Accessed 13 May 2014.
Fig. ¹³ Nelson, Scot C. "Coconut: Climbing spikes injury to stem." Flickr, 2015, (CC BY-SA 2.0), flickr.com. Accessed 10 Mar. 2017.

Published 10 Mar. 2017 LR. Last update 19 Feb. 2024 LR