Are GrainPro Cocoons™ an effective alternative to conventional phosphine fumigation in large-scale control of stored-maize insect pests?

Are GrainPro Cocoons™ an effective alternative to conventional phosphine fumigation in... There is a dearth of comprehensive data regarding the performance of large-scale hermetic maize storage in sub-Saharan Africa (SSA) as an alternative to the sole and widely used phosphine fumigant. Trials were therefore conducted at three sites in Zimbabwe for up to 12 months to evaluate the performance of 20 tonne-capacity GrainPro Cocoons™ compared with conventional phosphine fumigation practice. A split-plot experimental design was used consisting of two main plots, namely: the cocoon and fumigated stack with three sub-plots being depth positions: top, middle and bottom. At each site, sampling was conducted at setting-up and at termination. Samples were assessed for insect population, grain damage, weight loss, germination and moisture content. There were no significant differences between the main plots for grain damage, weight loss, insect pest population/kg and germination after 4 months of storage. Hermetic storage was significantly more effective than fumigation practice in preserving germination after 8 and 12 months; and in reducing grain damage, weight loss, and insect population after 12 months of storage (P < 0.05). An economic analysis using the cocoon instead of conventional fumigation, based on an incremental benefit-cost ratio (BCR), showed no benefit of the alternative when considering the local retail price. However, the alternative was beneficial with a http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Pest Science Springer Journals

Are GrainPro Cocoons™ an effective alternative to conventional phosphine fumigation in large-scale control of stored-maize insect pests?

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Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2018 by Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Life Sciences; Entomology; Agriculture; Plant Pathology; Ecology; Forestry; Plant Sciences
ISSN
1612-4758
eISSN
1612-4766
D.O.I.
10.1007/s10340-018-0996-7
Publisher site
See Article on Publisher Site

Abstract

There is a dearth of comprehensive data regarding the performance of large-scale hermetic maize storage in sub-Saharan Africa (SSA) as an alternative to the sole and widely used phosphine fumigant. Trials were therefore conducted at three sites in Zimbabwe for up to 12 months to evaluate the performance of 20 tonne-capacity GrainPro Cocoons™ compared with conventional phosphine fumigation practice. A split-plot experimental design was used consisting of two main plots, namely: the cocoon and fumigated stack with three sub-plots being depth positions: top, middle and bottom. At each site, sampling was conducted at setting-up and at termination. Samples were assessed for insect population, grain damage, weight loss, germination and moisture content. There were no significant differences between the main plots for grain damage, weight loss, insect pest population/kg and germination after 4 months of storage. Hermetic storage was significantly more effective than fumigation practice in preserving germination after 8 and 12 months; and in reducing grain damage, weight loss, and insect population after 12 months of storage (P < 0.05). An economic analysis using the cocoon instead of conventional fumigation, based on an incremental benefit-cost ratio (BCR), showed no benefit of the alternative when considering the local retail price. However, the alternative was beneficial with a

Journal

Journal of Pest ScienceSpringer Journals

Published: Jun 5, 2018

References

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