Jackfruit Cultural Calendar



From the Horticultural Sciences Department, Florida Cooperative Extension Service
Institute of Food and Agricultural Sciences, University of Florida


Cultural calendar for jackfruit production of mature (bearing) trees in the home landscape

Operation

Jan.

Feb.

March

April

May

June

July

Aug.

Sept.

Oct.

Nov.

Dec.

General fertilizer1

   

Apply 2-3 dry applications of a nitrogen-phosphate-potash-magnesium material during this time. Do not apply any nitrogen containing fertilizer after August as this may induce the tree to continue to grow during the winter and therefore reduce flowering in the spring.

       

Nutritional sprays2

     

Apply 4-6 foliar nutritional sprays; those containing magnesium, manganese, zinc, molybdenum, and boron are most effective during the warm part of the year.

   

Iron applications3

   

Apply 2-4 iron applications to the soil around the base of the tree. Iron applications are most effective during the warm part of the year.

     

Watering

Water periodically during dry periods.

Begin to water the tree when signs of blooming appear and water regularly until harvest.

Water periodically during dry periods.

Insect control

Monitor for scale infestations and treat as needed.

Disease control

Monitor for disease infestations and treat as needed.

Pruning

       

Selectively prune the tree after harvest to control tree height and spread.

   

1, Use a 6-6-6-3, 8-3-9-3, 4-2-12-2 or similar material.

2, Follow label directions for dilution of dry and liquid micronutrient formulations.

3, In low pH, acid, sandy soils apply iron sulfate; in high pH, rockland soils apply chelated iron.




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Bibliography

Crane, Jonathan H., Balerdi, Carlos F. and Maguire, Ian. "Jackfruit Growing in the Florida Home Landscape." edis .ifas.ufl.edu. This document is Fact Sheet HS-882, one in a series of the Horticultural Sciences Department, UF/IFAS Extension. Publication date May 2002. Revised Oct. 2005 and Nov. 2016. Web. 17 Dec. 2014.

Published 18 Dec. 2014 LR. Last update 22 Jan. 2017 LR
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