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01000naa a22002652 4500 |
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NLM298019841 |
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DE-627 |
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20231225093244.0 |
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cr uuu---uuuuu |
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231225s2019 xx |||||o 00| ||eng c |
| 024 |
7 |
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|a 10.1094/PDIS-07-18-1247-RE
|2 doi
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| 028 |
5 |
2 |
|a pubmed24n0993.xml
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|a (DE-627)NLM298019841
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|a (NLM)31184971
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Rolando, Carol
|e verfasserin
|4 aut
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| 245 |
1 |
0 |
|a Can Copper Be Used to Treat Foliar Phytophthora Infections in Pinus radiata?
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| 264 |
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1 |
|c 2019
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
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|a Date Completed 09.08.2019
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|a Date Revised 09.08.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Red needle cast is a significant foliar disease of commercial stands of Pinus radiata caused by Phytophthora pluvialis in New Zealand. The effect of copper, applied as a foliar spray of cuprous oxide at a range of doses between 0 and 1.72 kg ha-1, was investigated in two controlled trials with potted plants and in an operational trial with mature P. radiata. In all trials, lesions formed on needles after artificial exposure to the infecting propagules (zoospores) of P. pluvialis were used to determine treatment efficacy, with the number and/or length of lesions as the dependent variable. Results across all trials indicated that cuprous oxide was highly effective at reducing infection of P. radiata with P. pluvialis. Application rates equivalent to ≥0.65 kg ha-1 significantly reduced infection levels relative to a control treatment, with foliar surface copper levels as low as 13 to 26 mg kg-1 of needle tissue preventing infection. Greater copper content was associated with a reduction in the proportion of needles with P. pluvialis lesions, with the probability of lesions developing decreasing approximately 1% for every 1 unit (in milligrams per kilogram) increase in copper content. Over a 90-day period, surface copper content declined to 30% of that originally applied, indicating an approximate period of treatment efficacy of 3 months. Our findings highlight the potential of cuprous oxide for the control of red needle cast in P. radiata stands. Further information about the optimal field dose, timing, and the frequency of foliar cuprous oxide application is key to prevent infection and also reduce the build up of inoculum during severe outbreaks of this pathogen
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| 650 |
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4 |
|a Journal Article
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7 |
|a Antiparasitic Agents
|2 NLM
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| 650 |
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|a Copper
|2 NLM
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| 650 |
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7 |
|a 789U1901C5
|2 NLM
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| 650 |
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7 |
|a cuprous oxide
|2 NLM
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| 650 |
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7 |
|a T8BEA5064F
|2 NLM
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| 700 |
1 |
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|a Somchit, Chanatda
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bader, Martin K-F
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fraser, Stuart
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Williams, Nari
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Plant disease
|d 1997
|g 103(2019), 8 vom: 10. Aug., Seite 1828-1834
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|7 nnns
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|g volume:103
|g year:2019
|g number:8
|g day:10
|g month:08
|g pages:1828-1834
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|u http://dx.doi.org/10.1094/PDIS-07-18-1247-RE
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