Abstract
Abstract Six general-purpose fumigants applied by different methods were evaluated for control of the fungal-nematode complex on onion ( Allium cepa L.) for transplant production. Most soil treatments improved plant vigor, size, uniformity, and yield, and these positive responses were correlated with reduced populations of soil-borne fungi and nematodes. Growth response and control of pathogens varied with the fumigant used and the method of application. Populations of Pythium spp. and Fusarium spp. were reduced with methyl bromide, methyl bromide-chloropicrin mixture, chloropicrin, DD-MENCS (Vorlex), metham (748 liters/ha, drenched) and Bunema (drenched). Metham (748 liters/ha, drenched or drenched and incorporated) controlled Rhizoctonia solani Kuehn. Complete control of root-knot nematodes was obtained with methyl bromide and methyl bromide-chloropicrin mixture and nearly complete control with chloropicrin and DD-MENCS.
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Claims 10
Claim · model-written summary
Most soil treatments improved onion vigor, size, uniformity and yield.
- Taxon
- onion
Allium cepat0 - Treatment
- Most soil treatmentse0
- Outcome
- plant vigor, size, uniformity, and yielde0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Most soil treatments improved plant vigor, size, uniformity, and yield”
t0“onion”
Claim · model-written summary
Positive onion responses correlated with reduced soil fungi and nematodes.
- Taxon
- onion
Allium cepat0 - Outcome
- positive responsese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“these positive responses were correlated with reduced populations of soil-borne fungi and nematodes.”
t0“onion”
Claim · model-written summary
Fumigant choice and application method changed growth response and pathogen control.
- Taxon
- onion
Allium cepat0 - Outcome
- Growth response and control of pathogense0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Growth response and control of pathogens varied with the fumigant used and the method of application.”
t0“onion”
Claim · model-written summary
Six fumigant regimens reduced Pythium populations.
- Taxon
- onion
Allium cepat0 - Treatment
- methyl bromide, methyl bromide-chloropicrin mixture, chloropicrin, DD-MENCS (Vorlex), metham (748 liters/ha, drenched) and Bunema (drenched)e0
- Outcome
- Populations of Pythium spp.e0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

.jpg?width=500)
Verbatim
e0“Populations of Pythium spp. and Fusarium spp. were reduced with methyl bromide, methyl bromide-chloropicrin mixture, chloropicrin, DD-MENCS (Vorlex), metham (748 liters/ha, drenched) and Bunema (drenched).”
t0“onion”
Claim · model-written summary
Six fumigant regimens reduced Fusarium populations.
- Taxon
- onion
Allium cepat0 - Treatment
- methyl bromide, methyl bromide-chloropicrin mixture, chloropicrin, DD-MENCS (Vorlex), metham (748 liters/ha, drenched) and Bunema (drenched)e0
- Outcome
- Fusarium spp.e0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.


Verbatim
e0“Populations of Pythium spp. and Fusarium spp. were reduced with methyl bromide, methyl bromide-chloropicrin mixture, chloropicrin, DD-MENCS (Vorlex), metham (748 liters/ha, drenched) and Bunema (drenched).”
t0“onion”
Claim · model-written summary
Drenched metham controlled Rhizoctonia solani.
- Taxon
- onion
Allium cepat0 - Treatment
- Metham (748 liters/ha, drenched or drenched and incorporated)e0
- Interactor
- Rhizoctonia solani Kuehn
Rhizoctonia solanie0pathogent0 - Outcome
- controlled Rhizoctonia solani Kuehne0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.


Verbatim
e0“Metham (748 liters/ha, drenched or drenched and incorporated) controlled Rhizoctonia solani Kuehn.”
t0“onion”
Claim · model-written summary
Methyl bromide completely controlled root-knot nematodes.
- Taxon
- onion
Allium cepat0 - Treatment
- methyl bromidee0
- Interactor
- root-knot nematodes
Meloidogynee0pathogent0 - Outcome
- Complete control of root-knot nematodese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“Complete control of root-knot nematodes was obtained with methyl bromide and methyl bromide-chloropicrin mixture”
t0“onion”
Claim · model-written summary
Methyl bromide-chloropicrin completely controlled root-knot nematodes.
- Taxon
- onion
Allium cepat0 - Treatment
- methyl bromide-chloropicrin mixturee0
- Interactor
- root-knot nematodes
Meloidogynee0pathogent0 - Outcome
- Complete control of root-knot nematodese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“Complete control of root-knot nematodes was obtained with methyl bromide and methyl bromide-chloropicrin mixture”
t0“onion”
Claim · model-written summary
Chloropicrin gave nearly complete root-knot nematode control.
- Taxon
- onion
Allium cepat0 - Treatment
- chloropicrine0
- Outcome
- nearly complete controle0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“nearly complete control with chloropicrin and DD-MENCS.”
t0“onion”
Claim · model-written summary
DD-MENCS gave nearly complete root-knot nematode control.
- Taxon
- onion
Allium cepat0 - Treatment
- DD-MENCSe0
- Outcome
- nearly complete controle0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“nearly complete control with chloropicrin and DD-MENCS.”
t0“onion”
The same questions in other papers
application · Fusarium · Allium cepa (onion)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
1 paper more in this group
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.