Abstract
The ectoparasitic nematode Xiphinema index is economically important on grapevine (Vitis vinifera L.) in Chile, as a root parasite as well as a vector of Grapevine Fan Leaf Virus (GFLV). The objective of this study was to evaluate the effect of five nematode-antagonistic plants incorporated as green manure in greenhouse pot cultures on X. index maintained on grapevine, cv. Thompson Seedless. The antagonistic plants were: rapeseed (Brassica napus L. cv. Rangi), wormseed (Chenopodium ambrosioides L.); rue (Ruta graveolens L.), brown mustard (Brassica juncea Czern. & Coss. cv. Nemfix) and thyme (Thymus vulgaris L.). Their effects were compared with the following four treatments: barley (Hordeum vulgare L.); fenamiphos at 0.04%; grapevine plants inoculated with X. index as control; and grapevine with no further treatment. The incorporation of B. juncea cv. Nemfix reduced the nematode population by nearly 65% compared to the more than an 80% reduction with fenamiphos, with both treatments significantly different from all other treatments. The fenamiphos treatment resulted in the lowest root damage but caused a significant reduction of the total fresh weight of the grapevine plants, possibly due to phitotoxicity. At the rates of incorporation (2% W/V), brown mustard, thyme, wormseed and rue appeared to be well suited as potential green manure crops for control of X. index in grapevine.
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Claims 5
Claim · model-written summary
Incorporating Brassica juncea cv. Nemfix as green manure reduced the nematode population by nearly 65% on grapevine.
- Treatment
- incorporation of B. juncea cv. Nemfixe1
- Interactor
- Xiphinema indexXiphinema indexe0pest
- Outcome
- nematode populatione1
- Direction
- reducede1
- Value
- 65%e1
- Qualifier
- more than an 80% reductione1
- Comparator
- fenamiphose1
VitisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ectoparasitic nematode Xiphinema index is economically important on grapevine (Vitis vinifera L.) in Chile”
e1“The incorporation of B. juncea cv. Nemfix reduced the nematode population by nearly 65% compared to the more than an 80% reduction with fenamiphos”
Claim · model-written summary
Fenamiphos reduced the nematode population by more than 80% relative to inoculated grapevine controls.
- Treatment
- fenamiphose1
- Interactor
- Xiphinema indexXiphinema indexe0pest
- Outcome
- nematode populatione1
- Direction
- reducede1
- Value
- 80%e1
- Comparator
- grapevine plants inoculated with X. index as controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ectoparasitic nematode Xiphinema index is economically important on grapevine (Vitis vinifera L.) in Chile”
e1“The incorporation of B. juncea cv. Nemfix reduced the nematode population by nearly 65% compared to the more than an 80% reduction with fenamiphos”
e2“grapevine plants inoculated with X. index as control”
Claim · model-written summary
Fenamiphos gave the lowest root damage among the treatments on grapevine.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ectoparasitic nematode Xiphinema index is economically important on grapevine (Vitis vinifera L.) in Chile”
e3“The fenamiphos treatment resulted in the lowest root damage”
Claim · model-written summary
Fenamiphos caused a significant reduction of total fresh weight of grapevine plants, possibly due to phytotoxicity.
- Treatment
- fenamiphose1
- Outcome
- total fresh weighte4
- Direction
- reductione4
- Qualifier
- possibly due to phitotoxicitye4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ectoparasitic nematode Xiphinema index is economically important on grapevine (Vitis vinifera L.) in Chile”
e1“The incorporation of B. juncea cv. Nemfix reduced the nematode population by nearly 65% compared to the more than an 80% reduction with fenamiphos”
e4“caused a significant reduction of the total fresh weight of the grapevine plants, possibly due to phitotoxicity”
Claim · model-written summary
Brown mustard, thyme, wormseed and rue are suited as green manure crops for control of X. index in grapevine at 2% W/V.
- Treatment
- brown mustard, thyme, wormseed and ruee5
- Interactor
- X. indexXiphinema indexe5pest
- Outcome
- control of X. indexe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ectoparasitic nematode Xiphinema index is economically important on grapevine (Vitis vinifera L.) in Chile”
e5“At the rates of incorporation (2% W/V), brown mustard, thyme, wormseed and rue appeared to be well suited as potential green manure crops for control of X. index in grapevine”
The same questions in other papers
fenamiphos · growth · VitisPositive and negative results
1 in the opposite direction
- positive
fenamiphos · Xiphinema index · VitisResults agree
1 paper in the same direction as this paper
- positive
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.