Details
| Original language | English |
|---|---|
| Pages (from-to) | 4324-4332 |
| Number of pages | 9 |
| Journal | Pest management science |
| Volume | 78 |
| Issue number | 10 |
| Early online date | 22 Jun 2022 |
| Publication status | Published - Oct 2022 |
Abstract
BACKGROUND: The western flower thrips, Frankliniella occidentalis is a quarantine pest of French beans that requires a phytosanitary treatment to meet quarantine requirements for strict lucrative markets. In this study, the efficacy of hot water treatment against F. occidentalis eggs and its effects on the post-harvest physicochemical quality parameters of French beans was evaluated.
RESULTS: The immersion time of 8.01 min (95 %, CL 7.77-8.24) was predicted by the probit model as the minimum time required to achieve a 99.9968 % control level. Confirmatory tests with a large number of F. occidentalis eggs were performed to validate the estimated time to achieve probit-9 control level, and there were no survivors from the 50,103 eggs treated. Likewise, none of the 55,364 eggs exposed to 45 ± 0.2 °C for 7 min (observational time) survived. The effect of the treatment schedule on French beans quality parameters was assessed and there were no differences in weight loss, moisture content, total soluble solids, titratable acidity, pH, and reducing sugars between treated and untreated samples.
CONCLUSION: Our results indicate that hot water treatment at 45 ± 0.2 °C for a duration of 8.01 min is an effective phytosanitary treatment for the control of Frankliniella occidentalis on French beans, with no significant impact on pods quality. This article is protected by copyright. All rights reserved.
Keywords
- Phaseolus vulgaris, egg disinfestation, physicochemical parameters, phytosanitary treatment, thripidae
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Agronomy and Crop Science
- Agricultural and Biological Sciences(all)
- Insect Science
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In: Pest management science, Vol. 78, No. 10, 10.2022, p. 4324-4332.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Efficacy of Hot Water Treatment for Postharvest Control of Western Flower Thrips, Frankliniella occidentalis in French Beans
AU - Mwando, Nelson L
AU - Ndlela, Shepard
AU - Subramanian, Sevgan
AU - Mohamed, Samira A
AU - Meyhöfer, Rainer
N1 - Funding Information: The authors wish to thank 's postharvest project staff for their technical assistance and Abdelmutalab Gesmalla for assistance in statistical analysis. The authors gratefully acknowledge the financial support for this research by the following organizations and agencies: BioInnovate Africa (grant number BA‐C1‐2017‐06_icipe), the Swedish International Development Cooperation Agency (Sida), the Swiss Agency for Development and Cooperation (SDC), the Federal Democratic Republic of Ethiopia and the Government of the Republic of Kenya. The views expressed herein do not necessarily reflect the official opinion of the donors. icipe
PY - 2022/10
Y1 - 2022/10
N2 - BACKGROUND: The western flower thrips, Frankliniella occidentalis is a quarantine pest of French beans that requires a phytosanitary treatment to meet quarantine requirements for strict lucrative markets. In this study, the efficacy of hot water treatment against F. occidentalis eggs and its effects on the post-harvest physicochemical quality parameters of French beans was evaluated.RESULTS: The immersion time of 8.01 min (95 %, CL 7.77-8.24) was predicted by the probit model as the minimum time required to achieve a 99.9968 % control level. Confirmatory tests with a large number of F. occidentalis eggs were performed to validate the estimated time to achieve probit-9 control level, and there were no survivors from the 50,103 eggs treated. Likewise, none of the 55,364 eggs exposed to 45 ± 0.2 °C for 7 min (observational time) survived. The effect of the treatment schedule on French beans quality parameters was assessed and there were no differences in weight loss, moisture content, total soluble solids, titratable acidity, pH, and reducing sugars between treated and untreated samples.CONCLUSION: Our results indicate that hot water treatment at 45 ± 0.2 °C for a duration of 8.01 min is an effective phytosanitary treatment for the control of Frankliniella occidentalis on French beans, with no significant impact on pods quality. This article is protected by copyright. All rights reserved.
AB - BACKGROUND: The western flower thrips, Frankliniella occidentalis is a quarantine pest of French beans that requires a phytosanitary treatment to meet quarantine requirements for strict lucrative markets. In this study, the efficacy of hot water treatment against F. occidentalis eggs and its effects on the post-harvest physicochemical quality parameters of French beans was evaluated.RESULTS: The immersion time of 8.01 min (95 %, CL 7.77-8.24) was predicted by the probit model as the minimum time required to achieve a 99.9968 % control level. Confirmatory tests with a large number of F. occidentalis eggs were performed to validate the estimated time to achieve probit-9 control level, and there were no survivors from the 50,103 eggs treated. Likewise, none of the 55,364 eggs exposed to 45 ± 0.2 °C for 7 min (observational time) survived. The effect of the treatment schedule on French beans quality parameters was assessed and there were no differences in weight loss, moisture content, total soluble solids, titratable acidity, pH, and reducing sugars between treated and untreated samples.CONCLUSION: Our results indicate that hot water treatment at 45 ± 0.2 °C for a duration of 8.01 min is an effective phytosanitary treatment for the control of Frankliniella occidentalis on French beans, with no significant impact on pods quality. This article is protected by copyright. All rights reserved.
KW - Phaseolus vulgaris
KW - egg disinfestation
KW - physicochemical parameters
KW - phytosanitary treatment
KW - thripidae
UR - http://www.scopus.com/inward/record.url?scp=85133913982&partnerID=8YFLogxK
U2 - 10.1002/ps.7051
DO - 10.1002/ps.7051
M3 - Article
C2 - 35730382
VL - 78
SP - 4324
EP - 4332
JO - Pest management science
JF - Pest management science
SN - 1526-498X
IS - 10
ER -