Cargando…
Compatibility and Efficacy of Isaria fumosorosea with Horticultural Oils for Mitigation of the Asian Citrus Psyllid, Diaphorina citri (Hemiptera: Liviidae)
Horticultural oils are an important component of integrated management programs of several phytophagous arthropods and pathogens affecting fruit, ornamentals and vegetables in greenhouse and field production systems. Although effective against the target pest, their incompatibility with biological c...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2017
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5746802/ https://www.ncbi.nlm.nih.gov/pubmed/29088086 http://dx.doi.org/10.3390/insects8040119 |
_version_ | 1783289171207520256 |
---|---|
author | Kumar, Vivek Avery, Pasco B. Ahmed, Juthi Cave, Ronald D. McKenzie, Cindy L. Osborne, Lance S. |
author_facet | Kumar, Vivek Avery, Pasco B. Ahmed, Juthi Cave, Ronald D. McKenzie, Cindy L. Osborne, Lance S. |
author_sort | Kumar, Vivek |
collection | PubMed |
description | Horticultural oils are an important component of integrated management programs of several phytophagous arthropods and pathogens affecting fruit, ornamentals and vegetables in greenhouse and field production systems. Although effective against the target pest, their incompatibility with biological control agents can compromise efforts to develop eco-friendly management programs for important agricultural pests. In this study, we assessed the in vitro effect of selected refined petroleum oils used in citrus and other horticultural crops with a biopesticide containing the entomopathogenic fungi, Isaria fumosorosea (PFR-97) under laboratory conditions. Further, we used leaf disk bioassays to evaluate the combined efficacy of petroleum oils and I. fumosorosea against the Asian citrus psyllid, Diaphorina citri (Hemiptera: Liviidae), a major pest of citrus in the United States. All five petroleum oil treatments (Orchex, Sun Pure, Conoco Blend -1, Conoco Blend -2, and JMS) were compatible with I. fumosorosea blastospores, as none of them were found to affect I. fumosorosea colony-forming units and radial fungal growth measured at 3, 6, 9, and 12 days post-inoculation. All mixed treatments performed better than I. fumosorosea alone against D. citri, where the highest mean survival time of D. citri was 12.5 ± 0.7 days. No significant differences in D. citri survival time and I. fumosorosea growth (fungal development index) on dead cadavers, which is important for determining their horizontal transmission, were observed when mixed with Orchex, Sun Pure, Conoco Blend -2, and JMS. Results indicated that horticultural oils in combination with I. fumosorosea could offer citrus growers an alternative treatment for integrating into their current management programs while battling against D. citri in citrus production systems. Due to their eco-friendly, broad-spectrum effect, it could provide control against various citrus pests, while also encouraging the retention of effective chemistries for a longer period in the marketplace. However promising, these combination treatments need to be tested further with I. fumosorosea under grove conditions to confirm their field efficacy. |
format | Online Article Text |
id | pubmed-5746802 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-57468022018-01-03 Compatibility and Efficacy of Isaria fumosorosea with Horticultural Oils for Mitigation of the Asian Citrus Psyllid, Diaphorina citri (Hemiptera: Liviidae) Kumar, Vivek Avery, Pasco B. Ahmed, Juthi Cave, Ronald D. McKenzie, Cindy L. Osborne, Lance S. Insects Article Horticultural oils are an important component of integrated management programs of several phytophagous arthropods and pathogens affecting fruit, ornamentals and vegetables in greenhouse and field production systems. Although effective against the target pest, their incompatibility with biological control agents can compromise efforts to develop eco-friendly management programs for important agricultural pests. In this study, we assessed the in vitro effect of selected refined petroleum oils used in citrus and other horticultural crops with a biopesticide containing the entomopathogenic fungi, Isaria fumosorosea (PFR-97) under laboratory conditions. Further, we used leaf disk bioassays to evaluate the combined efficacy of petroleum oils and I. fumosorosea against the Asian citrus psyllid, Diaphorina citri (Hemiptera: Liviidae), a major pest of citrus in the United States. All five petroleum oil treatments (Orchex, Sun Pure, Conoco Blend -1, Conoco Blend -2, and JMS) were compatible with I. fumosorosea blastospores, as none of them were found to affect I. fumosorosea colony-forming units and radial fungal growth measured at 3, 6, 9, and 12 days post-inoculation. All mixed treatments performed better than I. fumosorosea alone against D. citri, where the highest mean survival time of D. citri was 12.5 ± 0.7 days. No significant differences in D. citri survival time and I. fumosorosea growth (fungal development index) on dead cadavers, which is important for determining their horizontal transmission, were observed when mixed with Orchex, Sun Pure, Conoco Blend -2, and JMS. Results indicated that horticultural oils in combination with I. fumosorosea could offer citrus growers an alternative treatment for integrating into their current management programs while battling against D. citri in citrus production systems. Due to their eco-friendly, broad-spectrum effect, it could provide control against various citrus pests, while also encouraging the retention of effective chemistries for a longer period in the marketplace. However promising, these combination treatments need to be tested further with I. fumosorosea under grove conditions to confirm their field efficacy. MDPI 2017-10-31 /pmc/articles/PMC5746802/ /pubmed/29088086 http://dx.doi.org/10.3390/insects8040119 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Kumar, Vivek Avery, Pasco B. Ahmed, Juthi Cave, Ronald D. McKenzie, Cindy L. Osborne, Lance S. Compatibility and Efficacy of Isaria fumosorosea with Horticultural Oils for Mitigation of the Asian Citrus Psyllid, Diaphorina citri (Hemiptera: Liviidae) |
title | Compatibility and Efficacy of Isaria fumosorosea with Horticultural Oils for Mitigation of the Asian Citrus Psyllid, Diaphorina citri (Hemiptera: Liviidae) |
title_full | Compatibility and Efficacy of Isaria fumosorosea with Horticultural Oils for Mitigation of the Asian Citrus Psyllid, Diaphorina citri (Hemiptera: Liviidae) |
title_fullStr | Compatibility and Efficacy of Isaria fumosorosea with Horticultural Oils for Mitigation of the Asian Citrus Psyllid, Diaphorina citri (Hemiptera: Liviidae) |
title_full_unstemmed | Compatibility and Efficacy of Isaria fumosorosea with Horticultural Oils for Mitigation of the Asian Citrus Psyllid, Diaphorina citri (Hemiptera: Liviidae) |
title_short | Compatibility and Efficacy of Isaria fumosorosea with Horticultural Oils for Mitigation of the Asian Citrus Psyllid, Diaphorina citri (Hemiptera: Liviidae) |
title_sort | compatibility and efficacy of isaria fumosorosea with horticultural oils for mitigation of the asian citrus psyllid, diaphorina citri (hemiptera: liviidae) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5746802/ https://www.ncbi.nlm.nih.gov/pubmed/29088086 http://dx.doi.org/10.3390/insects8040119 |
work_keys_str_mv | AT kumarvivek compatibilityandefficacyofisariafumosoroseawithhorticulturaloilsformitigationoftheasiancitruspsylliddiaphorinacitrihemipteraliviidae AT averypascob compatibilityandefficacyofisariafumosoroseawithhorticulturaloilsformitigationoftheasiancitruspsylliddiaphorinacitrihemipteraliviidae AT ahmedjuthi compatibilityandefficacyofisariafumosoroseawithhorticulturaloilsformitigationoftheasiancitruspsylliddiaphorinacitrihemipteraliviidae AT caveronaldd compatibilityandefficacyofisariafumosoroseawithhorticulturaloilsformitigationoftheasiancitruspsylliddiaphorinacitrihemipteraliviidae AT mckenziecindyl compatibilityandefficacyofisariafumosoroseawithhorticulturaloilsformitigationoftheasiancitruspsylliddiaphorinacitrihemipteraliviidae AT osbornelances compatibilityandefficacyofisariafumosoroseawithhorticulturaloilsformitigationoftheasiancitruspsylliddiaphorinacitrihemipteraliviidae |