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- Title
Area‐population control of fungus‐growing termite, Odontotermes formosanus, using hexaflumuron durable baits.
- Authors
Chiu, Chun‐I; Chuang, Ya‐Hui; Liang, Wei‐Ren; Yeh, Hsin‐Ting; Yang, Hsiao‐Ying; Tsai, Ming‐Jer; Spomer, Neil A; Li, Hou‐Feng
- Abstract
BACKGROUND Fungus‐growing termites (Termitidae: Macrotermitinae) are common forest and agriculture pests. To evaluate the efficacy of termite baiting in suppressing field population of fungus‐growing termites, a durable termite bait with hexaflumuron was evenly installed in a one‐hectare forest area dominated by a fungus‐growing termite, Odontotermes formosanus (Shiraki). Monthly monitoring of termite foraging activity on baits and wood stakes was conducted for 4 years to quantify efficacy of baits. To examine whether the hexaflumuron led to colony death, pesticides in fungus gardens of active and deceased nests were quantified using a LC‐QTOF/MS. RESULTS: After baiting, 50% and 90% of baits were fed upon 10 and 24 months, respectively. After 2 years of baiting, the monthly number of wood stakes occupied by termites was reduced from 34.7 ± 1.8 to 17.6 ± 2.5 (−49.1%), and the number of wood stakes consumed was reduced from 17.7 ± 0.8 to 13.3 ± 1.2 (−25.7%). Hexaflumuron was detected in deceased colonies, including five of six fungus gardens and the fungal tissue of Xyleria grown on fungus gardens, with a concentration of 0.31–20.11 mg kg−1 dry weight. CONCLUSION: This study demonstrated that durable hexaflumuron baits consumed by fungus‐growing termites were further incorporated into fungus gardens, resulted in colony elimination and negative area‐population effects, supporting that durable hexaflumuron baits are effective in suppressing field populations of fungus‐growing termites. © 2021 Society of Chemical Industry.
- Subjects
SOCIETY of Chemical Industry (Great Britain); TERMITE control; COMMUNITY forests; NESTS; TERMITES; GARDENS; PEST control
- Publication
Pest Management Science, 2022, Vol 78, Issue 1, p104
- ISSN
1526-498X
- Publication type
Article
- DOI
10.1002/ps.6612