Abstract
Black shank, caused by Phytophthora nicotianae, is responsible for serious yield and quality reduction in tobacco production. Application of effective fungicides continues to be a viable component in developing integrated disease management programs. Experiments were conducted in 2011 to 2013 to determine the efficacy and application methods of a new fungicide, Zorvec (a.i. oxathiapiprolin), for management of black shank under field conditions. Oxathiapiprolin is the first member of a new class of isoxazoline fungicide. Application of Zorvec (0.35 liter/ha) onto tobacco seedlings 1 week prior to transplanting in conjunction with directed applications of the product at 0.7 liter/ha at first cultivation and lay-by (last cultivation) reduced black shank significantly compared to the nontreated control in the experiments conducted in 2011 and 2012. Application of Zorvec at 1.4 liter/ha through transplant water followed by directed sprays at first cultivation and lay-by at 0.7 liter/ha reduced black shank significantly compared with the nontreated control in 2012 and 2013 studies. These treatments were not significantly different (P = 0.05) in disease reduction compared to mefenoxam. All treatments involving Zorvec increased tobacco yield significantly (P = 0.05) or showed a tendency to increase tobacco yield over the nontreated control in all experiments conducted in 2011 to 2013. The results indicated that the new fungicide oxathiapiprolin was effective in reduction of P. nicotianae on tobacco.
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Claims 4
Claim · model-written summary
Seedling and directed Zorvec applications significantly reduced black shank versus untreated tobacco in 2011 and 2012.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- Application of Zorvec (0.35 liter/ha) onto tobacco seedlings 1 week prior to transplanting in conjunction with directed applications of the product at 0.7 liter/ha at first cultivation and lay-by (last cultivation)e0
- Interactor
- Phytophthora nicotianae
Phytophthora nicotianaee1pathogen - Outcome
- black shanke0
- Direction
- reducede0
- Comparator
- nontreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of Zorvec (0.35 liter/ha) onto tobacco seedlings 1 week prior to transplanting in conjunction with directed applications of the product at 0.7 liter/ha at first cultivation and lay-by (last cultivation) reduced black shank significantly compared to the nontreated control in the experiments conducted in 2011 and 2012”
e1“Black shank, caused by Phytophthora nicotianae”
Claim · model-written summary
Zorvec through transplant water followed by directed sprays significantly reduced black shank in 2012 and 2013.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- Application of Zorvec at 1.4 liter/ha through transplant water followed by directed sprays at first cultivation and lay-by at 0.7 liter/hae0
- Interactor
- Phytophthora nicotianaePhytophthora nicotianaee2pathogen
- Outcome
- black shanke0
- Direction
- reducede0
- Comparator
- nontreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of Zorvec at 1.4 liter/ha through transplant water followed by directed sprays at first cultivation and lay-by at 0.7 liter/ha reduced black shank significantly compared with the nontreated control in 2012 and 2013 studies”
e1“tobacco production”
e2“Black shank, caused by Phytophthora nicotianae”
Claim · model-written summary
Zorvec treatment disease reduction did not significantly differ from mefenoxam.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- These treatmentse0
- Outcome
- disease reductione0
- Direction
- not significantly differente0
- Comparator
- mefenoxame0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These treatments were not significantly different (P = 0.05) in disease reduction compared to mefenoxam”
e1“tobacco production”
Claim · model-written summary
All Zorvec treatments significantly increased or tended to increase tobacco yield versus untreated control.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- treatments involving Zorvece0
- Outcome
- tobacco yielde0
- Direction
- increasede0
- Comparator
- nontreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All treatments involving Zorvec increased tobacco yield significantly (P = 0.05) or showed a tendency to increase tobacco yield over the nontreated control in all experiments conducted in 2011 to 2013”
The same questions in other papers
application · Phytophthora nicotianae · Nicotiana tabacum (tobacco)Results agree
3 papers in the same direction as this paper
- positive
- 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.