Impact of Short-Term Atmospheric Heat Transfer on the Survival of Granary Weevil in Stored Winter Wheat
The granary weevil <i>Sitophilus granarius</i> L. is a pest causing substantial damage to stored wheat worldwide, against which the elaboration of sustainable control methods has recently been gaining importance. Our objective was to assess the efficacy of a rapid atmospheric convection...
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MDPI AG
2022-05-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/12/6/1313 |
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| author | Helga Lukács Ferenc Pál-Fám Éva Varga-Visi Roman Rolbiecki Attila Percze Sándor Keszthelyi |
| author_facet | Helga Lukács Ferenc Pál-Fám Éva Varga-Visi Roman Rolbiecki Attila Percze Sándor Keszthelyi |
| author_sort | Helga Lukács |
| collection | DOAJ |
| description | The granary weevil <i>Sitophilus granarius</i> L. is a pest causing substantial damage to stored wheat worldwide, against which the elaboration of sustainable control methods has recently been gaining importance. Our objective was to assess the efficacy of a rapid atmospheric convection heat transfer method against <i>S. granarius</i> under laboratory conditions. We examined the changes in adult mortality and progeny survival triggered by heat and the effect of this on the quality parameters of treated wheat items. The insecticidal efficacy, achieved by the treatment of infested grains, was also analyzed at 37, 47, 67, 87, and 107 °C for 5, 6, and 7 min under 40% and 60% rh exposure to atmospheric heating with the progeny production assessed 45 days after the treatment. The quality parameters of the treated wheat were analyzed by a germination test and NIR grain analysis. Our findings showed that adequate eradication of <i>S. granarius</i> was obtained at 107 °C for 5 min of exposure under suboptimal (40% rh) relative humidity values. At 60% relative humidity, mortality averages were more dispersed, and efficacies above the expected 95% occurred over longer exposures. The progeny-suppression effect from short-term heating was affirmed. The atmospheric convection heat transfer method, under the applied temperature and exposure time combinations, did not induce detectable changes in the quality parameters or the germination ability of the treated wheat. Overall, our findings indicated that the use of short-term heating for the post-harvest protection of cereals is feasible, which may contribute to the realization of residuum-free pest management and provide an effective and sustainable technique in integrated pest management. |
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| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-10T00:38:55Z |
| publishDate | 2022-05-01 |
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| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-0948eaf407f24323985333fa12cef2272023-11-23T15:09:41ZengMDPI AGAgronomy2073-43952022-05-01126131310.3390/agronomy12061313Impact of Short-Term Atmospheric Heat Transfer on the Survival of Granary Weevil in Stored Winter WheatHelga Lukács0Ferenc Pál-Fám1Éva Varga-Visi2Roman Rolbiecki3Attila Percze4Sándor Keszthelyi5Department of Agronomy, Institute of Agronomy, Kaposvár Campus, Hungarian University of Agriculture and Life Sciences, S. Guba Str. 40, H-7400 Kaposvár, HungaryDepartment of Agronomy, Institute of Agronomy, Kaposvár Campus, Hungarian University of Agriculture and Life Sciences, S. Guba Str. 40, H-7400 Kaposvár, HungaryDepartment of Physiology and Animal Health, Institute of Physiology and Nutrition, Kaposvár Campus, Hungarian University of Agriculture and Life Sciences, S. Guba Str. 40, H-7400 Kaposvár, HungaryDepartment of Agrometeorology, Plant Irrigation and Horticulture, Bydgoszcz University of Science and Technology, 85-029 Bydgoszcz, PolandDepartment of Agronomy, Szent István Campus, Hungarian University of Agriculture and Life Sciences, K. Páter Str. 1, H-2100 Gödöllő, HungaryDepartment of Agronomy, Institute of Agronomy, Kaposvár Campus, Hungarian University of Agriculture and Life Sciences, S. Guba Str. 40, H-7400 Kaposvár, HungaryThe granary weevil <i>Sitophilus granarius</i> L. is a pest causing substantial damage to stored wheat worldwide, against which the elaboration of sustainable control methods has recently been gaining importance. Our objective was to assess the efficacy of a rapid atmospheric convection heat transfer method against <i>S. granarius</i> under laboratory conditions. We examined the changes in adult mortality and progeny survival triggered by heat and the effect of this on the quality parameters of treated wheat items. The insecticidal efficacy, achieved by the treatment of infested grains, was also analyzed at 37, 47, 67, 87, and 107 °C for 5, 6, and 7 min under 40% and 60% rh exposure to atmospheric heating with the progeny production assessed 45 days after the treatment. The quality parameters of the treated wheat were analyzed by a germination test and NIR grain analysis. Our findings showed that adequate eradication of <i>S. granarius</i> was obtained at 107 °C for 5 min of exposure under suboptimal (40% rh) relative humidity values. At 60% relative humidity, mortality averages were more dispersed, and efficacies above the expected 95% occurred over longer exposures. The progeny-suppression effect from short-term heating was affirmed. The atmospheric convection heat transfer method, under the applied temperature and exposure time combinations, did not induce detectable changes in the quality parameters or the germination ability of the treated wheat. Overall, our findings indicated that the use of short-term heating for the post-harvest protection of cereals is feasible, which may contribute to the realization of residuum-free pest management and provide an effective and sustainable technique in integrated pest management.https://www.mdpi.com/2073-4395/12/6/1313mortalityprotection methodqualitative parameters of winter wheatrelative humidity<i>Sitophilus granarius</i>short-term heating |
| spellingShingle | Helga Lukács Ferenc Pál-Fám Éva Varga-Visi Roman Rolbiecki Attila Percze Sándor Keszthelyi Impact of Short-Term Atmospheric Heat Transfer on the Survival of Granary Weevil in Stored Winter Wheat Agronomy mortality protection method qualitative parameters of winter wheat relative humidity <i>Sitophilus granarius</i> short-term heating |
| title | Impact of Short-Term Atmospheric Heat Transfer on the Survival of Granary Weevil in Stored Winter Wheat |
| title_full | Impact of Short-Term Atmospheric Heat Transfer on the Survival of Granary Weevil in Stored Winter Wheat |
| title_fullStr | Impact of Short-Term Atmospheric Heat Transfer on the Survival of Granary Weevil in Stored Winter Wheat |
| title_full_unstemmed | Impact of Short-Term Atmospheric Heat Transfer on the Survival of Granary Weevil in Stored Winter Wheat |
| title_short | Impact of Short-Term Atmospheric Heat Transfer on the Survival of Granary Weevil in Stored Winter Wheat |
| title_sort | impact of short term atmospheric heat transfer on the survival of granary weevil in stored winter wheat |
| topic | mortality protection method qualitative parameters of winter wheat relative humidity <i>Sitophilus granarius</i> short-term heating |
| url | https://www.mdpi.com/2073-4395/12/6/1313 |
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