Abstract
Plant-parasitic nematodes (PPNs) are known to damage the roots of tropical fruit crops in Florida, especially in South Florida’s calcareous soils. From July 2022 to September 2023, 89 fruit tree fields (18 avocado, 42 guava, 9 mamey, 5 longan, 4 starfruit, 3 mango, 3 lychee, 2 dragon fruit, 2 passionfruit, and 1 banana) were randomly selected for sampling in Homestead, Florida, to determine the incidence and distribution of PPNs and their relationship with soil-related factors such as pH, organic matter, electrical conductivity (EC), and soil texture. Nine PPN genera were detected: Rotylenchulus (73.0% incidence; mean abundance 58.5/100 cm 3 soil; and maximum 900/100 cm 3 soil), Mesocriconema (54.6%; 55.4; 568), Helicotylenchus (33.7%; 14.3; 185), Meloidogyne (41.6%; 15.6; 260), Pratylenchus (18.0%; 1.3; 20), Xiphinema (13.5%; 0.74; 16), Hoplolaimus (11.2%; 2.13; 72), Tylenchorhynchus (9.0%; 2.43; 102), and Paratrichodorus (8.9%; 0.74; 28). Principal component analysis and Spearman correlation analysis showed that fruit crops, organic matter, and EC influenced PPN distribution. Organic matter was positively correlated to Rotylenchulus, whereas EC was positively correlated to Hoplolaimus, Pratylenchus, and Helicotylenchus. Species in the genera Hoplolaimus, Rotylenchulus, and Pratylenchus were associated with avocado; Meloidogyne and Helicotylenchus with guava and dragon fruit; and Mesocriconema and Helicotylenchus with lychee, longan, and mango. Results highlight that both host plants and soil-related factors are critical in determining PPN distribution and abundance in South Florida’s tropical fruit fields, providing important insights for managing nematode pests.
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Claims 6
Claim · model-written summary
Nine PPN genera were detected in fruit tree fields.
Verbatim
e0“Nine PPN genera were detected”
e1“89 fruit tree fields”
Claim · model-written summary
Organic matter was positively correlated with Rotylenchulus.
- Taxon
- fruit cropse1
- Interactor
- Rotylenchulus
Rotylenchuluse0pest - Outcome
- Rotylenchuluse0
- Direction
- positively correlatede0
- Setting
- Organic mattere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Organic matter was positively correlated to Rotylenchulus”
e1“fruit crops, organic matter, and EC influenced PPN distribution”
Claim · model-written summary
EC was positively correlated with Hoplolaimus, Pratylenchus and Helicotylenchus.
- Taxon
- fruit cropse1
- Interactor
- HoplolaimusHoplolaimuse0pest
- Second interactor
- Pratylenchus
Pratylenchuse0pest - Outcome
- Hoplolaimus, Pratylenchus, and Helicotylenchuse0
- Direction
- positively correlatede0
- Qualifier
- Helicotylenchuse0
- Setting
- ECe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EC was positively correlated to Hoplolaimus, Pratylenchus, and Helicotylenchus”
e1“fruit crops, organic matter, and EC influenced PPN distribution”
Claim · model-written summary
Hoplolaimus, Rotylenchulus and Pratylenchus were associated with avocado.
- Taxon
- avocado
Persea americanae0 - Interactor
- HoplolaimusHoplolaimuse0pest
- Second interactor
- RotylenchulusRotylenchuluse0pest
- Outcome
- associated with avocadoe0
- Qualifier
- Pratylenchuse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hoplolaimus, Rotylenchulus, and Pratylenchus were associated with avocado”
Claim · model-written summary
Meloidogyne and Helicotylenchus were associated with guava and dragon fruit.
- Taxon
- guava and dragon fruit
Psidium guajava
Selenicereus undatuse0 - Interactor
- Meloidogyne
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogynee0pest - Second interactor
- Helicotylenchus
Helicotylenchuse0pest - Outcome
- Meloidogyne and Helicotylenchuse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“Meloidogyne and Helicotylenchus with guava and dragon fruit”
Claim · model-written summary
Mesocriconema and Helicotylenchus were associated with lychee, longan and mango.
- Taxon
- lychee, longan, and mango
_from_India.jpg?width=60)
Mangifera indica
Dimocarpus longan
Litchi chinensise0 - Interactor
- MesocriconemaMesocriconemae0pest
- Second interactor
- HelicotylenchusHelicotylenchuse0pest
- Outcome
- Mesocriconema and Helicotylenchuse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_from_India.jpg?width=500)
Verbatim
e0“Mesocriconema and Helicotylenchus with lychee, longan, and mango”