Abstract
Botanical nematicides have recently received increasing interest because of the high risks of some traditional nematicides to human health and the environment. This study evaluated the nematicidal activity of a plant volatile, trans -2-hexenal, against Meloidogyne incognita . This compound exhibited higher activity in a fumigation experiment than in the aqueous phase in vitro. Both in pot tests and in field trials, trans -2-hexenal showed significant efficacy against M. incognita while maintaining excellent plant growth, especially at doses of 1000 and 500 L ha –1, which were superior to that of abamectin at 180 g ha –1 via hole application treatment but not significantly different from fumigation with 400 kg ha –1 of dazomet. Furthermore, plants treated with 500 L ha –1 trans -2-hexenal had fruit yields 20.2 and 45% greater than the control group. On this basis, trans -2-hexenal may be a potential alternative fumigation agent for controlling M. incognita on tomato crops.
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Claims 7
Claim · model-written summary
Trans-2-hexenal showed higher nematicidal activity in a fumigation experiment than in the aqueous phase in vitro.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- fumigation experimente1
- Interactor
- Meloidogyne incognita
Meloidogyne incognitae0pest - Outcome
- activitye1
- Direction
- highere1
- Comparator
- aqueous phasee1
- Setting
- in vitroe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“This study evaluated the nematicidal activity of a plant volatile, trans -2-hexenal, against Meloidogyne incognita”
e1“This compound exhibited higher activity in a fumigation experiment than in the aqueous phase in vitro”
t0“Tomato Plants”
Claim · model-written summary
Trans-2-hexenal showed significant efficacy against M. incognita in pot tests and in field trials.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- trans -2-hexenale2
- Interactor
- M. incognita
Meloidogyne incognitae2pest - Outcome
- efficacy against M. incognitae2
- Direction
- decreaseinferrede2
- Setting
- pot tests and in field trialse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e2“Both in pot tests and in field trials, trans -2-hexenal showed significant efficacy against M. incognita while maintaining excellent plant growth”
t0“Tomato Plants”
Claim · model-written summary
Trans-2-hexenal at 1000 and 500 L ha-1 was superior to abamectin at 180 g ha-1 (hole application) in controlling M. incognita.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- doses of 1000 and 500 L ha –1e3
- Interactor
- M. incognita
Meloidogyne incognitae2pest - Outcome
- efficacy against M. incognitae2
- Direction
- superiore3
- Comparator
- abamectin at 180 g ha –1e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e2“Both in pot tests and in field trials, trans -2-hexenal showed significant efficacy against M. incognita while maintaining excellent plant growth”
e3“especially at doses of 1000 and 500 L ha –1, which were superior to that of abamectin at 180 g ha –1 via hole application treatment but not significantly different from fumigation with 400 kg ha –1 of dazomet”
t0“Tomato Plants”
Claim · model-written summary
Trans-2-hexenal at 1000 and 500 L ha-1 did not differ significantly from fumigation with 400 kg ha-1 of dazomet.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- doses of 1000 and 500 L ha –1e3
- Interactor
- M. incognita
Meloidogyne incognitae2pest - Outcome
- efficacy against M. incognitae2
- Direction
- not significantly differente3
- Comparator
- fumigation with 400 kg ha –1 of dazomete3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e2“Both in pot tests and in field trials, trans -2-hexenal showed significant efficacy against M. incognita while maintaining excellent plant growth”
e3“especially at doses of 1000 and 500 L ha –1, which were superior to that of abamectin at 180 g ha –1 via hole application treatment but not significantly different from fumigation with 400 kg ha –1 of dazomet”
t0“Tomato Plants”
Claim · model-written summary
Plants treated with 500 L ha-1 trans-2-hexenal had fruit yields 20.2 greater than the control group.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- plants treated with 500 L ha –1 trans -2-hexenale4
- Outcome
- fruit yieldse4
- Direction
- greatere4
- Value
- 20.2e4
- Comparator
- control groupe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e4“plants treated with 500 L ha –1 trans -2-hexenal had fruit yields 20.2 and 45% greater than the control group”
t0“Tomato Plants”
Claim · model-written summary
Plants treated with 500 L ha-1 trans-2-hexenal had fruit yields 45% greater than the control group.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- plants treated with 500 L ha –1 trans -2-hexenale4
- Outcome
- fruit yieldse4
- Direction
- greatere4
- Value
- 45%e4
- Comparator
- control groupe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e4“plants treated with 500 L ha –1 trans -2-hexenal had fruit yields 20.2 and 45% greater than the control group”
t0“Tomato Plants”
Claim · model-written summary
Trans-2-hexenal may be a potential alternative fumigation agent for controlling M. incognita on tomato crops.
- Taxon
- tomato
Solanum lycopersicume5 - Outcome
- alternative fumigation agent for controlling M. incognitae5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e5“trans -2-hexenal may be a potential alternative fumigation agent for controlling M. incognita on tomato crops”
The same questions in other papers
solarization · Meloidogyne incognita · Solanum lycopersicum (tomato)Results agree
12 papers in the same direction as this paper
- positive
- positive
- positive
9 papers more in this group
See all 13 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.