Abstract
Apron XL LS (mefenoxam) and Allegiance FL (metalaxyl) were highly inhibitory to growth of mycelium of Phytophthora capsici in vitro. Effective dose (ED50) of mefenoxam and metalaxyl for 50% inhibition of mycelial growth, for all five isolates of P. capsici tested, was 0.98 and 0.99 μg a.i./ml of culture medium, respectively. For mefenoxam at 200 μg a.i./ml, sporangium and zoospore germination were reduced by 92 and 96%, respectively, and 21 and 24%, respectively, for metalaxyl. In greenhouse studies, seed treatment with mefenoxam (0.42 ml of Apron XL LS/kg of seed) and metalaxyl (0.98 ml of Allegiance FL/kg of seed) significantly reduced pre- and post-emergence damping-off of seedlings caused by P. capsici in three pumpkin cultivars (Dickinson, Hybrid-401, and Hybrid-698) tested. Thirty-one days after seeding, at inoculum levels of 0, 90, 600, 1,400, and 4,000 CFU/g of soil, the average seedling stands for mefenoxam treatment were 98.4, 93.8, 88.3, 77.8, and 64.8%; for metalaxyl, 99.1, 85.3, 85.8, 73.5, and 59.3; and for the untreated control, 97.5, 55.2, 45.7, 37.0, and 22.9%, respectively. In field trials, the average seedling stands 35 days after seeding were 76.7, 74.7, and 44.9% for mefenoxam, metalaxyl, and untreated control, respectively. Seed treatment with mefenoxam or metalaxyl did not have any significant effect on either seed germination or seedling vigor.
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Claims 12
Claim · model-written summary
The ED50 of mefenoxam for 50% inhibition of mycelial growth of P. capsici was 0.98 μg a.i./ml of culture medium across five isolates.
- Taxon
- P. capsici
.jpg?width=60)
Phytophthora capsicie0 - Treatment
- mefenoxame0
- Interactor
- P. capsiciPhytophthora capsicie0pathogen
- Outcome
- mycelial growthe0
- Direction
- inhibitione0
- Value
- 0.98e0
- Qualifier
- for all five isolates of P. capsici testede0
Not reportedComparatorSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Effective dose (ED50) of mefenoxam and metalaxyl for 50% inhibition of mycelial growth, for all five isolates of P. capsici tested, was 0.98 and 0.99 μg a.i./ml of culture medium, respectively”
Claim · model-written summary
The ED50 of metalaxyl for 50% inhibition of mycelial growth of P. capsici was 0.99 μg a.i./ml of culture medium across five isolates.
- Taxon
- P. capsiciPhytophthora capsicie0
- Treatment
- metalaxyle0
- Interactor
- P. capsiciPhytophthora capsicie0pathogen
- Outcome
- mycelial growthe0
- Direction
- inhibitione0
- Value
- 0.99 μg a.i./mle0
- Qualifier
- for all five isolates of P. capsici testede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Effective dose (ED50) of mefenoxam and metalaxyl for 50% inhibition of mycelial growth, for all five isolates of P. capsici tested, was 0.98 and 0.99 μg a.i./ml of culture medium, respectively”
Claim · model-written summary
Mefenoxam at 200 μg a.i./ml reduced zoospore germination of P. capsici by 96%.
- Taxon
- Phytophthora capsiciPhytophthora capsicit0
- Treatment
- mefenoxam at 200 μg a.i./mle0
- Interactor
- Phytophthora capsiciPhytophthora capsicit0pathogen
- Outcome
- zoospore germinatione0
- Direction
- reducede0
- Value
- 96%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For mefenoxam at 200 μg a.i./ml, sporangium and zoospore germination were reduced by 92 and 96%, respectively, and 21 and 24%, respectively, for metalaxyl”
t0“Phytophthora capsici”
Claim · model-written summary
Metalaxyl reduced zoospore germination of P. capsici by 24%.
- Taxon
- Phytophthora capsiciPhytophthora capsicit0
- Treatment
- metalaxyle0
- Interactor
- Phytophthora capsiciPhytophthora capsicit0pathogen
- Outcome
- zoospore germinatione0
- Direction
- reducede0
- Value
- 24%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For mefenoxam at 200 μg a.i./ml, sporangium and zoospore germination were reduced by 92 and 96%, respectively, and 21 and 24%, respectively, for metalaxyl”
t0“Phytophthora capsici”
Claim · model-written summary
In greenhouse studies, mefenoxam seed treatment significantly reduced pre- and post-emergence damping-off caused by P. capsici in three pumpkin cultivars.
- Taxon
- pumpkine0
- Material
- Dickinson, Hybrid-401, and Hybrid-698e0
- Treatment
- seed treatment with mefenoxam (0.42 ml of Apron XL LS/kg of seed)e0
- Interactor
- P. capsiciPhytophthora capsicie0pathogen
- Outcome
- pre- and post-emergence damping-off of seedlingse0
- Direction
- reducede0
- Setting
- greenhouse studiese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In greenhouse studies, seed treatment with mefenoxam (0.42 ml of Apron XL LS/kg of seed) and metalaxyl (0.98 ml of Allegiance FL/kg of seed) significantly reduced pre- and post-emergence damping-off of seedlings caused by P. capsici in three pumpkin cultivars (Dickinson, Hybrid-401, and Hybrid-698) tested”
Claim · model-written summary
In greenhouse studies, metalaxyl seed treatment significantly reduced pre- and post-emergence damping-off caused by P. capsici in three pumpkin cultivars.
- Taxon
- pumpkine0
- Material
- Dickinson, Hybrid-401, and Hybrid-698e0
- Treatment
- metalaxyl (0.98 ml of Allegiance FL/kg of seed)e0
- Interactor
- P. capsiciPhytophthora capsicie0pathogen
- Outcome
- pre- and post-emergence damping-off of seedlingse0
- Direction
- reducede0
- Setting
- greenhouse studiese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In greenhouse studies, seed treatment with mefenoxam (0.42 ml of Apron XL LS/kg of seed) and metalaxyl (0.98 ml of Allegiance FL/kg of seed) significantly reduced pre- and post-emergence damping-off of seedlings caused by P. capsici in three pumpkin cultivars (Dickinson, Hybrid-401, and Hybrid-698) tested”
Claim · model-written summary
Thirty-one days after seeding, mefenoxam-treated pumpkin seedling stands were 98.4, 93.8, 88.3, 77.8 and 64.8% at inoculum levels of 0, 90, 600, 1,400 and 4,000 CFU/g soil, higher than the untreated control (97.5, 55.2, 45.7, 37.0 and 22.9%).
- Taxon
- Pumpkint0
- Treatment
- mefenoxam treatmente0
- Interactor
- Phytophthora capsiciPhytophthora capsicit0pathogen
- Outcome
- average seedling standse0
- Direction
- higherinferrede0
- Value
- 98.4, 93.8, 88.3, 77.8, and 64.8%e0
- Qualifier
- 97.5, 55.2, 45.7, 37.0, and 22.9%e0
- Comparator
- untreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thirty-one days after seeding, at inoculum levels of 0, 90, 600, 1,400, and 4,000 CFU/g of soil, the average seedling stands for mefenoxam treatment were 98.4, 93.8, 88.3, 77.8, and 64.8%; for metalaxyl, 99.1, 85.3, 85.8, 73.5, and 59.3; and for the untreated control, 97.5, 55.2, 45.7, 37.0, and 22.9%, respectively”
t0“Pumpkin Caused by Phytophthora capsici”
Claim · model-written summary
Thirty-one days after seeding, metalaxyl-treated pumpkin seedling stands were 99.1, 85.3, 85.8, 73.5 and 59.3 at inoculum levels of 0, 90, 600, 1,400 and 4,000 CFU/g soil, higher than the untreated control (97.5, 55.2, 45.7, 37.0 and 22.9%).
- Taxon
- Pumpkint0
- Treatment
- metalaxyle0
- Interactor
- Phytophthora capsiciPhytophthora capsicit0pathogen
- Outcome
- average seedling standse0
- Direction
- higherinferrede0
- Value
- 99.1, 85.3, 85.8, 73.5, and 59.3e0
- Qualifier
- 97.5, 55.2, 45.7, 37.0, and 22.9%e0
- Comparator
- untreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thirty-one days after seeding, at inoculum levels of 0, 90, 600, 1,400, and 4,000 CFU/g of soil, the average seedling stands for mefenoxam treatment were 98.4, 93.8, 88.3, 77.8, and 64.8%; for metalaxyl, 99.1, 85.3, 85.8, 73.5, and 59.3; and for the untreated control, 97.5, 55.2, 45.7, 37.0, and 22.9%, respectively”
t0“Pumpkin Caused by Phytophthora capsici”
Claim · model-written summary
In field trials, average seedling stand 35 days after seeding was 76.7% for mefenoxam versus 44.9% for the untreated control.
- Taxon
- Pumpkint0
- Treatment
- mefenoxame0
- Interactor
- Phytophthora capsiciPhytophthora capsicit0pathogen
- Outcome
- average seedling standse0
- Direction
- higherinferrede0
- Value
- 76.7e0
- Qualifier
- 44.9%e0
- Comparator
- untreated controle0
- Setting
- field trialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In field trials, the average seedling stands 35 days after seeding were 76.7, 74.7, and 44.9% for mefenoxam, metalaxyl, and untreated control, respectively”
t0“Pumpkin Caused by Phytophthora capsici”
Claim · model-written summary
In field trials, average seedling stand 35 days after seeding was 74.7% for metalaxyl versus 44.9% for the untreated control.
- Taxon
- Pumpkint0
- Treatment
- metalaxyle0
- Interactor
- Phytophthora capsiciPhytophthora capsicit0pathogen
- Outcome
- average seedling standse0
- Direction
- higherinferrede0
- Value
- 74.7e0
- Qualifier
- 44.9%e0
- Comparator
- untreated controle0
- Setting
- field trialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In field trials, the average seedling stands 35 days after seeding were 76.7, 74.7, and 44.9% for mefenoxam, metalaxyl, and untreated control, respectively”
t0“Pumpkin Caused by Phytophthora capsici”
Claim · model-written summary
Mefenoxam seed treatment had no significant effect on seed germination or seedling vigor.
- Taxon
- Pumpkint0
- Treatment
- Seed treatment with mefenoxame0
- Outcome
- seed germination or seedling vigore0
- Direction
- no_changeinferrede0
Not reportedComparator
Verbatim
e0“Seed treatment with mefenoxam or metalaxyl did not have any significant effect on either seed germination or seedling vigor”
t0“Pumpkin Caused by Phytophthora capsici”
Claim · model-written summary
Metalaxyl seed treatment had no significant effect on seed germination or seedling vigor.
- Taxon
- Pumpkint0
- Treatment
- metalaxyle0
- Outcome
- seed germination or seedling vigore0
- Direction
- no_changeinferrede0
Not reportedComparator
Verbatim
e0“Seed treatment with mefenoxam or metalaxyl did not have any significant effect on either seed germination or seedling vigor”
t0“Pumpkin Caused by Phytophthora capsici”
The same questions in other papers
seed treatment · growth · Cucurbita (pumpkins)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- positive
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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.