Abstract
Mancozeb (MZ) is a broadly used fungicide for the control of plant diseases, including late blight in potatoes caused by the oomycete Phytophthora infestans (Mont.) De Bary. MZ has been banned for agricultural use by the European Union as of January 2022 due to its hazards to humans and the environment. In a search for replacement fungicides, twenty-seven registered anti-oomycete fungicidal preparations were evaluated for their ability to mitigate the threat of this disease. Fourteen fungicides provided good control (≥75%) of late blight in potted potato and tomato plants in growth chambers. However, in Tunnel Experiment 1, only three fungicides provided effective control of P. infestans in potatoes: Cyazofamid (Ranman, a QiI inhibitor), Mandipropamid (Revus, a CAA inhibitor), and Oxathiapiprolin + Benthiavalicarb (Zorvek Endavia, an OSBP inhibitor + CAA inhibitor). In Tunnel Experiment 2, these three fungicides were applied at the recommended doses at 7-, 9-, and 21-day intervals, respectively, totaling 6, 4, and 2 sprays during the season. At 39 days post-inoculation (dpi), control efficacy increased in the following order: Zorvec Endavia > Ranman > Revus > Mancozeb. Two sprays of Zorvec Endavia were significantly more effective in controlling the blight than six sprays of Ranman or four sprays of Revus. We, therefore, recommend using these three fungicides as replacements for mancozeb for the control of late blight in potatoes. A spray program that alternates between these three fungicides may be effective in controlling the disease and also in avoiding the build-up of resistance in P. infestans to mandipropamid and oxathiapiprolin.
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Claims 8
Claim · model-written summary
Fourteen fungicides gave at least 75% late blight control in potted potato and tomato.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- Fourteen fungicidese0
- Outcome
- late blighte0
- Direction
- good controle0
- Value
- ≥75%e0
- Setting
- growth chamberse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fourteen fungicides provided good control (≥75%) of late blight in potted potato and tomato plants in growth chambers.”
Claim · model-written summary
Cyazofamid controlled late blight effectively in the first tunnel experiment.
- Taxon
- potatoesSolanum tuberosume0
- Treatment
- Cyazofamide0
- Interactor
- P. infestans
Phytophthora infestanse0pathogen - Outcome
- P. infestanse0
- Direction
- effective controle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only three fungicides provided effective control of P. infestans in potatoes: Cyazofamid (Ranman, a QiI inhibitor), Mandipropamid (Revus, a CAA inhibitor), and Oxathiapiprolin + Benthiavalicarb (Zorvek Endavia, an OSBP inhibitor + CAA inhibitor).”
Claim · model-written summary
Mandipropamid controlled late blight effectively in the first tunnel experiment.
- Taxon
- potatoesSolanum tuberosume0
- Treatment
- Mandipropamide0
- Interactor
- P. infestansPhytophthora infestanse0pathogen
- Outcome
- P. infestanse0
- Direction
- effective controle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only three fungicides provided effective control of P. infestans in potatoes: Cyazofamid (Ranman, a QiI inhibitor), Mandipropamid (Revus, a CAA inhibitor), and Oxathiapiprolin + Benthiavalicarb (Zorvek Endavia, an OSBP inhibitor + CAA inhibitor).”
Claim · model-written summary
Oxathiapiprolin plus Benthiavalicarb controlled late blight effectively in the first tunnel experiment.
- Taxon
- potatoesSolanum tuberosume0
- Treatment
- Oxathiapiprolin + Benthiavalicarbe0
- Interactor
- P. infestansPhytophthora infestanse0pathogen
- Outcome
- P. infestanse0
- Direction
- effective controle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only three fungicides provided effective control of P. infestans in potatoes: Cyazofamid (Ranman, a QiI inhibitor), Mandipropamid (Revus, a CAA inhibitor), and Oxathiapiprolin + Benthiavalicarb (Zorvek Endavia, an OSBP inhibitor + CAA inhibitor).”
Claim · model-written summary
At 39 days, control efficacy ranked Zorvec Endavia above Ranman, Revus and Mancozeb.
- Taxon
- potatoesSolanum tuberosume1
- Outcome
- control efficacye0
- Direction
- increasede0
- Qualifier
- 39 days post-inoculation (dpi)e0
- Comparator
- Mancozebe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 39 days post-inoculation (dpi), control efficacy increased in the following order: Zorvec Endavia > Ranman > Revus > Mancozeb.”
t0“Potato”
e1“late blight in potatoes caused by the oomycete Phytophthora infestans”
Claim · model-written summary
Two Zorvec Endavia sprays controlled blight significantly more effectively than six Ranman or four Revus sprays.
- Taxon
- potatoesSolanum tuberosume1
- Treatment
- Two sprays of Zorvec Endaviae0
- Outcome
- controlling the blighte0
- Direction
- more effectivee0
- Comparator
- six sprays of Ranman or four sprays of Revuse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two sprays of Zorvec Endavia were significantly more effective in controlling the blight than six sprays of Ranman or four sprays of Revus.”
t0“Potato”
e1“late blight in potatoes caused by the oomycete Phytophthora infestans”
Claim · model-written summary
The authors recommend the three fungicides as mancozeb replacements.
- Taxon
- potatoesSolanum tuberosume0
- Outcome
- using these three fungicides as replacements for mancozebe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We, therefore, recommend using these three fungicides as replacements for mancozeb for the control of late blight in potatoes.”
Claim · model-written summary
The authors propose alternating the three fungicides for disease control and resistance avoidance.
- Taxon
- potatoesSolanum tuberosume1
- Interactor
- P. infestansPhytophthora infestanse0pathogen
- Outcome
- A spray program that alternates between these three fungicidese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A spray program that alternates between these three fungicides may be effective in controlling the disease and also in avoiding the build-up of resistance in P. infestans to mandipropamid and oxathiapiprolin.”
t0“Potato”
e1“late blight in potatoes caused by the oomycete Phytophthora infestans”
The same questions in other papers
oxathiapiprolin · Phytophthora infestans · Solanum tuberosum (potato)Results agree
1 paper in the same direction as this paper
- positive
benthiavalicarb · Phytophthora infestans · Solanum tuberosum (potato)Results agree
1 paper in the same direction as this paper
- positive
cyazofamid · Phytophthora infestans · Solanum tuberosum (potato)Results agree
2 papers in the same direction as this paper
- positive
- positive
mandipropamid · Phytophthora infestans · Solanum tuberosum (potato)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
application · disease · Solanum tuberosum (potato)Positive and negative results
66 papers in the same direction as this paper · 9 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- negative
73 papers more in this group
See all 77 papers →fungicide · disease · Solanum tuberosum (potato)Positive and negative results
73 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
76 papers more in this group
See all 80 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.