Abstract
Abstract The root-knot nematodes ( Meloidogyne spp.) are considered one of the most destructive diseases in the world. In Egypt, farmers primarily rely on chemical nematicides, which have become costly to control. Currently, abamectin is a bio-based pesticide used as an alternative tool against Meloidogyne spp. on cucumber plants ( Cucumis sativus L.). During the current research, four tested abamectin formulations were DIVA (1.8% EW), RIOMECTIN (5% ME), AGRIMEC GOLD (8.4% SC) and ZORO (3.6% EC) compared with two reference nematicides namely, CROP NEMA (5% CS) and TERVIGO (2% SC). The main results showed that, in vitro study elucidated that the most effective formulations of abamectin as a larvicidal were EW with LC 50 value of 21.66 µg ml −1 . However, in the egg hatching test, the formulations of abamectin SC (2%) and EW were the most effective in reducing egg hatching, with LC 50 values of 12.83 and 13.57 µg ml −1 . The calculated relative potency values showed diversity depending on the two referenced nematicides. On the other hand, in vivo study, the results indicated that, all tested formulations of abamectin recorded general mean reductions in root galls (23.05–75.23%), egg masses (14.46–65.63%). Moreover, the total population density declined by 39.24–87.08%. Furthermore, the influence of abamectin formulations, in the presence of root-knot nematodes, on the growth of cucumber plants parameters, such as root dry weight, root length, root radius, root surface area, shoot dry weight and shoot height, as well as the content of macro-elements (N, P and K) exhibited varying levels of response.
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Claims 6
Claim · model-written summary
EW was the most effective abamectin larvicide in vitro, with LC50 of 21.66 µg ml −1.
- Taxon
- cucumber plants
Cucumis sativust0 - Treatment
- EWe0
- Interactor
- Meloidogyne spp.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogynee1pest - Outcome
- larvicidale0
- Direction
- most effectivee0
- Value
- 21.66 µg ml −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
t0“cucumber plants”
e0“the most effective formulations of abamectin as a larvicidal were EW with LC 50 value of 21.66 µg ml −1”
e1“The root-knot nematodes ( Meloidogyne spp.) are considered one of the most destructive diseases in the world.”
Claim · model-written summary
SC (2%) reduced nematode egg hatching with LC50 12.83 µg ml −1.
- Taxon
- cucumber plantsCucumis sativust0
- Treatment
- SC (2%)e0
- Interactor
- Meloidogyne spp.Meloidogynee1pest
- Outcome
- egg hatchinge0
- Direction
- reducinge0
- Value
- 12.83e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber plants”
e0“SC (2%) and EW were the most effective in reducing egg hatching, with LC 50 values of 12.83 and 13.57 µg ml −1”
e1“The root-knot nematodes ( Meloidogyne spp.) are considered one of the most destructive diseases in the world.”
Claim · model-written summary
EW reduced nematode egg hatching with LC50 13.57 µg ml −1.
- Taxon
- cucumber plantsCucumis sativust0
- Treatment
- EWe0
- Interactor
- Meloidogyne spp.Meloidogynee1pest
- Outcome
- egg hatchinge0
- Direction
- reducinge0
- Value
- 13.57 µg ml −1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber plants”
e0“SC (2%) and EW were the most effective in reducing egg hatching, with LC 50 values of 12.83 and 13.57 µg ml −1”
e1“The root-knot nematodes ( Meloidogyne spp.) are considered one of the most destructive diseases in the world.”
Claim · model-written summary
Abamectin formulations reduced cucumber root galls by 23.05–75.23%.
- Taxon
- cucumber plantsCucumis sativust0
- Treatment
- all tested formulations of abamectine0
- Interactor
- Meloidogyne spp.Meloidogynee1pest
- Outcome
- root gallse0
- Direction
- reductionse0
- Value
- 23.05–75.23%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber plants”
e0“all tested formulations of abamectin recorded general mean reductions in root galls (23.05–75.23%), egg masses (14.46–65.63%)”
e1“The root-knot nematodes ( Meloidogyne spp.) are considered one of the most destructive diseases in the world.”
Claim · model-written summary
Abamectin formulations reduced nematode egg masses by 14.46–65.63%.
- Taxon
- cucumber plantsCucumis sativust0
- Treatment
- all tested formulations of abamectine0
- Interactor
- Meloidogyne spp.Meloidogynee1pest
- Outcome
- egg massese0
- Direction
- reductionse0
- Value
- 14.46–65.63%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber plants”
e0“all tested formulations of abamectin recorded general mean reductions in root galls (23.05–75.23%), egg masses (14.46–65.63%)”
e1“The root-knot nematodes ( Meloidogyne spp.) are considered one of the most destructive diseases in the world.”
Claim · model-written summary
Cucumber growth and macroelement measures showed varying responses to abamectin formulations with nematodes present.
- Taxon
- cucumber plantsCucumis sativuse0
- Treatment
- abamectin formulationse0
- Interactor
- root-knot nematodesMeloidogynee0pest
- Outcome
- growth of cucumber plants parameterse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber plants”
e0“the influence of abamectin formulations, in the presence of root-knot nematodes, on the growth of cucumber plants parameters, such as root dry weight, root length, root radius, root surface area, shoot dry weight and shoot height, as well as the content of macro-elements (N, P and K) exhibited varying levels of response”
The same questions in other papers
abamectin · Meloidogyne · Cucumis sativus (cucumber)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
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See all 5 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.