Impact of Ammonia During Composting on Calonectria pseudonaviculata and C. henricotiae, Causal Agents of Boxwood Blight. Issue 2 (3rd April 2019)
- Record Type:
- Journal Article
- Title:
- Impact of Ammonia During Composting on Calonectria pseudonaviculata and C. henricotiae, Causal Agents of Boxwood Blight. Issue 2 (3rd April 2019)
- Main Title:
- Impact of Ammonia During Composting on Calonectria pseudonaviculata and C. henricotiae, Causal Agents of Boxwood Blight
- Authors:
- Harvey, Robert J.
Shishkoff, Nina
Pecchia, John A.
Davis, Donald D. - Abstract:
- Abstract: Boxwood ( Buxus spp.) blight is a devastating disease caused by the Ascomycete fungus Calonectria pseudonaviculata in the U.S. and Europe. A second Calonectria species, C. henricotiae, is also pathogenic on boxwood in Europe, but is not present in the U.S. where it is classified as a quarantine pathogen. Composting can eradicate various plant pathogens and high temperature is likely the most important factor influencing pathogen eradication. We previously reported that C. pseudonaviculata microsclerotia survived exposure to 40 °C in an incubator without compost, whereas exposure to the same temperature and time, but with compost added, greatly decreased survival. That is, the decrease in Calonectria growth and survival in compost was greater than could be accounted for by high temperature alone. We hypothesized that the enhanced decrease in Calonectria growth and survival might be due to ammonia, a fungitoxic gas produced during composting. In this laboratory study, we determined that ammonia within agar in Petri plates reduced radial growth of both C. pseudonaviculata and C. henricotiae . In studies with C. pseudonaviculata, gaseous ammonia reduced microsclerotia survival. Our findings suggest that composting dead or dying blighted boxwoods in the presence of ammonia could reduce dissemination of both Calonectria species from blighted to healthy boxwoods.
- Is Part Of:
- Compost science & utilization. Volume 27:Issue 2(2019)
- Journal:
- Compost science & utilization
- Issue:
- Volume 27:Issue 2(2019)
- Issue Display:
- Volume 27, Issue 2 (2019)
- Year:
- 2019
- Volume:
- 27
- Issue:
- 2
- Issue Sort Value:
- 2019-0027-0002-0000
- Page Start:
- 116
- Page End:
- 123
- Publication Date:
- 2019-04-03
- Subjects:
- Calonectria -- Compost -- boxwood blight -- microsclerotia
Compost -- Periodicals
Refuse and refuse disposal -- Biodegradation -- Periodicals
631.875 - Journal URLs:
- http://www.tandfonline.com/toc/ucsu20/current ↗
http://www.tandfonline.com/ ↗ - DOI:
- 10.1080/1065657X.2019.1586595 ↗
- Languages:
- English
- ISSNs:
- 1065-657X
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 3366.225200
British Library DSC - BLDSS-3PM
British Library STI - ELD Digital store - Ingest File:
- 10841.xml