Abstract
Soilborne pests especially Spongospora subterranea f. sp. subterranea , which causes powdery scab, are posing serious threats to potato production in China. The combined impacts of 1,3-dichloropropene (1,3-D), chloropicrin (Pic) and dimethyl disulfide (DMDS) were assessed in controlling powdery scab and weeds for soil fumigation under field conditions. Two field trials found that 1,3-D + DMDS + Pic (1:3:2) at 30 g a.i. m −2 effectively controlled Chenopodium glaucum and Digitaria sanguinalis with excellent control efficacy for plants and fresh weight (85.6–98.7%), considerably decreased disease prevalence and index of powdery scab with good control efficacy (86.9% and 86.5%), gave high yields (4.87 and 2.94 kg m −2 ), and increased economic benefits (7.12 and 3.24 ¥ m −2 ). The combined treatment yielded comparable results as Pic treatment in reducing disease index of powdery scab but was more effective than DZ treatment. Application of all soil fumigant treatments gave better results than the untreated plots in controlling weeds, reducing disease index of powdery scab, and increasing yields. This is the first report of soil fumigation for potato soilborne pests especially powdery scab control in China. Overall considering control efficacy, economic benefits and fumigant dose, the fumigant combination 1,3-D + DMDS + Pic could be utilized in integrated pest management programs of potato for controlling powdery scab and weeds in China.
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Claims 12
Claim · model-written summary
Combined fumigation controlled Chenopodium glaucum with 85.6–98.7% plant and fresh-weight control efficacy.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- 1,3-D + DMDS + Pic (1:3:2) at 30 g a.i. m −2e0
- Interactor
- Chenopodium glaucum
Oxybasis glaucae0weed - Outcome
- Chenopodium glaucume0
- Direction
- controllede0
- Value
- 85.6–98.7%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1,3-D + DMDS + Pic (1:3:2) at 30 g a.i. m −2 effectively controlled Chenopodium glaucum and Digitaria sanguinalis with excellent control efficacy for plants and fresh weight (85.6–98.7%)”
t0“potato”
Claim · model-written summary
Combined fumigation controlled Digitaria sanguinalis with 85.6–98.7% plant and fresh-weight control efficacy.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- 1,3-D + DMDS + Pic (1:3:2) at 30 g a.i. m −2e0
- Interactor
- Digitaria sanguinalis
.jpg?width=60)
Digitaria sanguinalise0weed - Outcome
- Digitaria sanguinalise0
- Direction
- controllede0
- Value
- 85.6–98.7%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“1,3-D + DMDS + Pic (1:3:2) at 30 g a.i. m −2 effectively controlled Chenopodium glaucum and Digitaria sanguinalis with excellent control efficacy for plants and fresh weight (85.6–98.7%)”
t0“potato”
Claim · model-written summary
Combined fumigation reduced powdery scab prevalence with 86.9% efficacy.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- 1,3-D + DMDS + Pice1
- Interactor
- Spongospora subterranea f. sp. subterranea
Spongospora subterranea f. sp. subterraneae2pathogene0 - Outcome
- disease prevalencee0
- Direction
- decreasede0
- Value
- 86.9%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“considerably decreased disease prevalence and index of powdery scab with good control efficacy (86.9% and 86.5%)”
t0“potato”
e1“1,3-D + DMDS + Pic (1:3:2) at 30 g a.i. m −2 effectively controlled Chenopodium glaucum and Digitaria sanguinalis”
e2“Spongospora subterranea f. sp. subterranea , which causes powdery scab”
Claim · model-written summary
Combined fumigation reduced powdery scab disease index with 86.5% efficacy.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- 1,3-D + DMDS + Pice1
- Outcome
- index of powdery scabe0
- Direction
- decreasede0
- Value
- 86.5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“considerably decreased disease prevalence and index of powdery scab with good control efficacy (86.9% and 86.5%)”
t0“potato”
e1“1,3-D + DMDS + Pic (1:3:2) at 30 g a.i. m −2 effectively controlled Chenopodium glaucum and Digitaria sanguinalis”
Claim · model-written summary
The two trials reported potato yields of 4.87 and 2.94 kg m −2 under combined fumigation.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- 1,3-D + DMDS + Pice1
- Outcome
- yieldse0
- Direction
- highe0
- Value
- 4.87 and 2.94 kg m −2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“gave high yields (4.87 and 2.94 kg m −2 )”
t0“potato”
e1“1,3-D + DMDS + Pic (1:3:2) at 30 g a.i. m −2 effectively controlled Chenopodium glaucum and Digitaria sanguinalis”
Claim · model-written summary
Combined fumigation increased economic benefits to 7.12 and 3.24 ¥ m −2.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- 1,3-D + DMDS + Pice1
- Outcome
- economic benefitse0
- Direction
- increasede0
- Value
- 7.12 and 3.24 ¥ m −2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased economic benefits (7.12 and 3.24 ¥ m −2 )”
t0“potato”
e1“1,3-D + DMDS + Pic (1:3:2) at 30 g a.i. m −2 effectively controlled Chenopodium glaucum and Digitaria sanguinalis”
Claim · model-written summary
Combined fumigation and Pic similarly reduced powdery scab disease index.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- combined treatmente0
- Outcome
- disease index of powdery scabe0
- Direction
- comparablee0
- Comparator
- Pic treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“combined treatment yielded comparable results as Pic treatment in reducing disease index of powdery scab”
t0“potato”
Claim · model-written summary
Combined fumigation reduced powdery scab disease index more effectively than DZ.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- combined treatmente1
- Outcome
- more effectivee0
- Direction
- more effectivee0
- Comparator
- DZ treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but was more effective than DZ treatment”
t0“potato”
e1“The combined treatment yielded comparable results as Pic treatment”
Claim · model-written summary
All fumigants controlled weeds better than untreated plots.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- all soil fumigant treatmentse0
- Outcome
- controlling weedse0
- Direction
- bettere0
- Comparator
- untreated plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all soil fumigant treatments gave better results than the untreated plots in controlling weeds”
t0“potato”
Claim · model-written summary
All fumigants reduced powdery scab disease index relative to untreated plots.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- all soil fumigant treatmentse0
- Outcome
- disease index of powdery scabe0
- Direction
- reducinge0
- Comparator
- untreated plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all soil fumigant treatments gave better results than the untreated plots in controlling weeds, reducing disease index of powdery scab, and increasing yields”
t0“potato”
Claim · model-written summary
All fumigants increased yields relative to untreated plots.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- all soil fumigant treatmentse0
- Outcome
- yieldse0
- Direction
- increasinge0
- Comparator
- untreated plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all soil fumigant treatments gave better results than the untreated plots in controlling weeds, reducing disease index of powdery scab, and increasing yields”
t0“potato”
Claim · model-written summary
The authors recommend combined fumigation for potato powdery scab and weed control in China.
- Taxon
- potatoSolanum tuberosume0
- Outcome
- 1,3-D + DMDS + Pic could be utilized in integrated pest management programse0
- Setting
- Chinae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1,3-D + DMDS + Pic could be utilized in integrated pest management programs of potato for controlling powdery scab and weeds in China”
The same questions in other papers
fumigant · disease · Solanum tuberosum (potato)Positive and negative results
1 in the opposite direction
- no effect
fumigant · yield · Solanum tuberosum (potato)Results agree
2 papers in the same direction as this paper
- positive
- 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.