Abstract
Bahiagrass (Paspalum notatum Flugge cv . Paraguayan-22) growing under newly planted peach [Prunus persica (L.) Batsch.] trees severely stunted the trees. Neither supplemental fertilizer nor irrigating with two 3.8-liters·hour -1 emitters per tree eliminated tree stunting emitters were controlled by an automatic tensiometer set to maintain 3 kpa at a depth of 0.5 m under a tree in bahiagrass. Preplant fumigation with ethylene dibromide at 100 liters·ha -1 increased tree growth, but not tree survival. Fenamiphos, a nematicide, applied under the trees each spring and fall at a rate of 11 kg-ha - 1 had no positive effect on tree survival, tree growth, or nematode populations. Bahiagrass tended to suppress populations of Meloidogyne spp. under the trees., Meloidogyne spp. were the only nematodes present that had mean populations > 65 per 150 cm 3 of soil. Leaf concentrations of several elements differed between trees growing in bahiagrass sod and in. bare ground treated with herbicides. Leaf Ca was low for all treatments in spite of a soil pH near 6.5 and adequate soil Ca. The severe stunting of trees grown in bahiagrass, irrespective of the other treatments, demonstrated that bahiagrass should not be grown under newly planted trees. The low populations of parasitic nematodes in bahiagrass showed that bahiagrass has potential as a preplant biological control of nematodes harmful to peach trees. Chemical name used: ethyl 3-methy1-4-(methylthio) phenyl (1-methylethyl) phosphoramidate (fenamiphos).
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Claims 13
Claim · model-written summary
Bahiagrass growing under newly planted peach trees severely stunted the trees.
- Taxon
- peach
Prunus persicae0 - Treatment
- Bahiagrasse0
- Interactor
- Bahiagrasse0other
- Outcome
- severely stunted the treese0
- Direction
- stuntede0
- Comparator
- bare ground treated with herbicidese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bahiagrass (Paspalum notatum Flugge cv . Paraguayan-22) growing under newly planted peach [Prunus persica (L.) Batsch.] trees severely stunted the trees”
e1“bare ground treated with herbicides”
Claim · model-written summary
Supplemental fertilizer did not eliminate tree stunting under bahiagrass.
- Taxon
- Peach TreePrunus persicat0
- Treatment
- supplemental fertilizere0
- Outcome
- tree stuntinge0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Neither supplemental fertilizer nor irrigating with two 3.8-liters·hour -1 emitters per tree eliminated tree stunting”
t0“Peach Tree”
Claim · model-written summary
Irrigating with two 3.8-liters/hour emitters per tree did not eliminate tree stunting under bahiagrass.
- Taxon
- Peach TreePrunus persicat0
- Treatment
- irrigating with two 3.8-liters·hour -1 emitters per treee0
- Outcome
- tree stuntinge0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Neither supplemental fertilizer nor irrigating with two 3.8-liters·hour -1 emitters per tree eliminated tree stunting”
t0“Peach Tree”
Claim · model-written summary
Preplant fumigation with ethylene dibromide at 100 liters/ha increased peach tree growth.
- Taxon
- Peach TreePrunus persicat0
- Treatment
- Preplant fumigation with ethylene dibromide at 100 liters·ha -1e0
- Outcome
- tree growthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Preplant fumigation with ethylene dibromide at 100 liters·ha -1 increased tree growth, but not tree survival”
t0“Peach Tree”
Claim · model-written summary
Preplant fumigation with ethylene dibromide did not increase peach tree survival.
- Taxon
- Peach TreePrunus persicat0
- Treatment
- Preplant fumigation with ethylene dibromide at 100 liters·ha -1e0
- Outcome
- tree survivale0
- Direction
- note0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Preplant fumigation with ethylene dibromide at 100 liters·ha -1 increased tree growth, but not tree survival”
t0“Peach Tree”
Claim · model-written summary
Fenamiphos nematicide had no positive effect on tree survival or tree growth.
- Taxon
- Peach TreePrunus persicat0
- Treatment
- Fenamiphos, a nematicide, applied under the trees each spring and fall at a rate of 11 kg-ha - 1e0
- Outcome
- tree survival, tree growthe0
- Direction
- no positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fenamiphos, a nematicide, applied under the trees each spring and fall at a rate of 11 kg-ha - 1 had no positive effect on tree survival, tree growth, or nematode populations”
t0“Peach Tree”
Claim · model-written summary
Fenamiphos nematicide had no positive effect on nematode populations.
- Taxon
- Peach TreePrunus persicat0
- Treatment
- Fenamiphos, a nematicide, applied under the trees each spring and fall at a rate of 11 kg-ha - 1e0
- Outcome
- nematode populationse0
- Direction
- no positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fenamiphos, a nematicide, applied under the trees each spring and fall at a rate of 11 kg-ha - 1 had no positive effect on tree survival, tree growth, or nematode populations”
t0“Peach Tree”
Claim · model-written summary
Bahiagrass tended to suppress populations of Meloidogyne spp. under the peach trees.
- Taxon
- Peach TreePrunus persicat0
- Treatment
- Bahiagrasse0
- Interactor
- Meloidogyne spp.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogynee0pest - Outcome
- populations of Meloidogyne spp.e0
- Direction
- suppresse0
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
e0“Bahiagrass tended to suppress populations of Meloidogyne spp. under the trees”
t0“Peach Tree”
Claim · model-written summary
Meloidogyne spp. were the only nematodes present with mean populations above 65 per 150 cm3 of soil.
- Taxon
- Peach TreePrunus persicat0
- Interactor
- Meloidogyne spp.Meloidogynee0pest
- Outcome
- only nematodes present that had mean populations > 65 per 150 cm 3 of soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Meloidogyne spp. were the only nematodes present that had mean populations > 65 per 150 cm 3 of soil”
t0“Peach Tree”
Claim · model-written summary
Leaf concentrations of several elements differed between trees growing in bahiagrass sod and in bare ground treated with herbicides.
- Taxon
- Peach TreePrunus persicat0
- Treatment
- bahiagrass sode0
- Outcome
- Leaf concentrations of several elementse0
- Direction
- differede0
- Comparator
- bare ground treated with herbicidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf concentrations of several elements differed between trees growing in bahiagrass sod and in. bare ground treated with herbicides”
t0“Peach Tree”
Claim · model-written summary
Leaf Ca was low for all treatments despite a soil pH near 6.5 and adequate soil Ca.
- Taxon
- Peach TreePrunus persicat0
- Outcome
- Leaf Ca was lowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf Ca was low for all treatments in spite of a soil pH near 6.5 and adequate soil Ca”
t0“Peach Tree”
Claim · model-written summary
Bahiagrass should not be grown under newly planted trees.
- Taxon
- Peach TreePrunus persicat0
- Outcome
- should not be grown under newly planted treese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“bahiagrass should not be grown under newly planted trees”
t0“Peach Tree”
Claim · model-written summary
The authors conclude bahiagrass has potential as a preplant biological control of nematodes harmful to peach trees.
- Taxon
- peach treesPrunus persicae0
- Outcome
- potential as a preplant biological control of nematodese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“bahiagrass has potential as a preplant biological control of nematodes harmful to peach trees”
The same questions in other papers
fenamiphos · growth · Prunus persica (peach)Results differ
3 papers in the same direction as this paper
- no effect
- no effect
- negative
solarization · survival · Prunus persica (peach)Positive and negative results
1 in the opposite direction
- positive
insecticide · growth · Prunus persica (peach)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
irrigation · crop injury · Prunus persica (peach)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- no effect
solarization · growth · Prunus persica (peach)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
2 papers more in this group
See all 6 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.