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 Pest & Disease Management |
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For more plant health information, including diagnostic resources, best-practice pest management advice and plant clinic data analysis for targeted crop protection, visit CABI’s Plantwise Knowledge Bank.
Pest and Disease Management:
Common pests infesting vegetative propagules are mealybugs, scale and pineapple red mites. In addition to these pests, the diseases termed heart rot, root rot, fruit rot and butt rot may be major problems when handling, storing or planting fresh materials. Two types of plant viruses a cloisterovirus and a bacilliform also infect pineapples. Other pests and diseases of pineapple are as the following:
Bacterial diseases:
- Bacterial Heart Rot Erwinia chrysanthemi
 Bacterial Heart Rot |
 Bacterial fruitlet brown rot |
Bacterial diseases (fruit):
- Acetic souring Acetic acid bacteria Bacterial fruitlet brown rot Erwinia ananas pv. ananas
- Fruit collapse Erwinia chrysanthemi
- Marbled fruit Acetobacter spp. A. peroxydans
- Erwinia herbicola var. ananas
- Pink fruit Acetobacter aceti, Erwinia herbicola, Gluconobacter oxydans
- Soft rot Erwinia carotovora subsp. Carotovora
Fungal diseases:
- Anthracnose –Colletotrichum ananas
- Butt rot –Chalara paradoxa, Thielaviopsis paradoxa, Ceratocystis paradoxa [teleomorph]
- Leaf spot –Curvularia eragrostidis, Cochliobolus eragrostidis [teleomorph]
- Phytophthora heart rot: –Phytophthora cinnamomi, Phytophthora nicotianae var. parasitica, Phytophthora parasitica.
- Root rot –Pythium spp., Pythium arrhenomanes
- Seedling Blight –Pythium spp.
- White leaf spot –Chalara paradoxa, Thielaviopsis paradoxa, Ceratocystis paradoxa [teleomorph]
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Root rot (Phytophthora cinnamomi)
Fungal diseases (fruit):
- Aspergillus rot –Aspergillus flavus
- Botryodiplodia rot –Lasiodiplodia theobromae, Botryodiplodia theobromae
- Black rot (water blister) –Chalara paradoxa, Thielaviopsis paradoxa,Ceratocystis paradoxa [teleomorph]
- Fusariosis (gummosis) –Fusarium subglutinans, Fusarium moniliforme var. subglutinans
- Glassy spoilage Yeast species Hendersonula fruit rot –Hendersonula toruloidea
- Interfruitlet corking – Penicillium funiculosum
- Leathery pocket – Penicillium funiculosum
- Nigrospora fruit rot – Nigrospora sphaerica
- Phytophthora – Phytophthora nicotianae var. parasitica
- Rhizopus rot – Rhizopus oryzae
- Rhizopus stolonifer
Yeasty fermentation – Yeast species
Nematodes, parasitic diseases
Lesion
- Pratylenchus brachyurus
- Paratylenchus elachistus
- Pratylenchus minutus
- Reniform – Rotylenchulus reniformis
- Root-knot – Meloidogyne javanica
- Spiral – Helicotylenchus spp.
May pineapple plants appear healthy but it has a disease. The inner leaves can be pulled out very easily once the plant is inflicted with the rot at the base. The roots fail to develop. Is it due to fungi or bacteria or virus?