Pest distribution model comparisons in integrated management of key crop pests: empirical studies of Taiwan and Southeastern Asia
Start Page
213
End Page
226
ISBN
978-986-058-353-3
Date Issued
2018-12
Date
2018-12
Author(s)
Li-Hsin Wu
Yi-Ting Hsiao
Chia-Hsun Chen
Abstract
Wide ranges of pests affect crop production and cause considerable yield losses. Several conceptual modelling frameworks have been proposed, and the choice of an approach depends largely on the objective of the model and the availability of data. Existing challenges on the modelling of insects are listed. Difficulties reside on the development and adaptation of adequate strategies to predict insect pests for their management to ensure enhanced agricultural production. This paper presents a summary of advances in insect population distribution and pest mapping around Asia. Following the step-wise modelling comparisons innovations, we evaluate the distributions of Trichogramma ostriniae and native host, Ostrinia furnacalis in southeastern Asia, and target host, Ostrinia nubilalis in North America, using a combination of MAXENT and CLIMEX modelling approaches. These correlative and process-based niche models led to similar predictions about the expected distribution of the two species in Asia, and enabled the emphasis of likely mismatches between the host and its natural enemy. Records of successful inundative releases involving the introduction of T. ostriniae in North America were modelled and used to adjust parameters in the CLIMEX model. Releases took place outside in the suitable climate areas identified from the native range of this species, suggesting that permanent wasp populations might only establish based on changes in temperature-related life history parameters.
Event(s)
2018 強化作物關鍵有害生物整合管理之前瞻技術國際研討會
Proceedings of the 2018 International Symposium on Proactive Technologies for Enhancement of Integrated Pest Management of Key Crops
Subjects
biocontrol
model comparison
environmental niche model
adaptation
Publisher
農業試驗所
Type
book part
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