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Biochar amendment to soils impairs developmental and reproductive performances of a major rice pest Nilaparvata lugens (Homopera : Delphacidae)

Hou, X. LU ; Meng, L Q; Li, L. LU ; Pan, GL and Li, B. LU (2015) In Journal of Applied Entomology 139(10). p.727-733
Abstract

Biochar amendments to soils had aroused much interest for having potential for greenhouse gas mitigation, soil improvement and increased crop productivity. However, little attention had been focused on the influence of biochar amendments on herbivorous insect pests. This study investigated whether a biochar amendment affected developmental and reproductive performances of the rice brown planthopper (Nilaparvata lugens) feeding on rice plants. The biochar from the pyrolysis of wheat straw was used for treatments of soils (from a fallow rice field), and the treated soils were applied to grow rice seedlings in small vials, in which N. lugens life history was observed. The nymphal development time was delayed and nymph-to-adult survival... (More)

Biochar amendments to soils had aroused much interest for having potential for greenhouse gas mitigation, soil improvement and increased crop productivity. However, little attention had been focused on the influence of biochar amendments on herbivorous insect pests. This study investigated whether a biochar amendment affected developmental and reproductive performances of the rice brown planthopper (Nilaparvata lugens) feeding on rice plants. The biochar from the pyrolysis of wheat straw was used for treatments of soils (from a fallow rice field), and the treated soils were applied to grow rice seedlings in small vials, in which N. lugens life history was observed. The nymphal development time was delayed and nymph-to-adult survival decreased with a high level of 200 g/kg biochar application. Herbivore lifetime fecundity decreased with increasing amounts of biochar, from 256 eggs under the control down to 69 eggs under the high level (200 g/kg) of biochar application. Egg-hatching rate significantly decreased at the highest biochar level (200 g/kg), compared to the other lower biochar levels. Our results suggest that biochar amendment to rice fields may have negative impacts on the rice brown planthoppers when applied at level of 200 g/kg of soil.

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author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Biochar application, Charcoal, Herbivorous insects, Integrated pest management, Life history, Rice
in
Journal of Applied Entomology
volume
139
issue
10
pages
7 pages
publisher
Wiley-Blackwell
external identifiers
  • scopus:84958866570
ISSN
0931-2048
DOI
10.1111/jen.12218
language
English
LU publication?
no
id
d61497a6-3283-4918-be1a-c123a2d8c2f1
date added to LUP
2017-04-26 13:22:05
date last changed
2017-09-03 05:21:34
@article{d61497a6-3283-4918-be1a-c123a2d8c2f1,
  abstract     = {<p>Biochar amendments to soils had aroused much interest for having potential for greenhouse gas mitigation, soil improvement and increased crop productivity. However, little attention had been focused on the influence of biochar amendments on herbivorous insect pests. This study investigated whether a biochar amendment affected developmental and reproductive performances of the rice brown planthopper (Nilaparvata lugens) feeding on rice plants. The biochar from the pyrolysis of wheat straw was used for treatments of soils (from a fallow rice field), and the treated soils were applied to grow rice seedlings in small vials, in which N. lugens life history was observed. The nymphal development time was delayed and nymph-to-adult survival decreased with a high level of 200 g/kg biochar application. Herbivore lifetime fecundity decreased with increasing amounts of biochar, from 256 eggs under the control down to 69 eggs under the high level (200 g/kg) of biochar application. Egg-hatching rate significantly decreased at the highest biochar level (200 g/kg), compared to the other lower biochar levels. Our results suggest that biochar amendment to rice fields may have negative impacts on the rice brown planthoppers when applied at level of 200 g/kg of soil.</p>},
  author       = {Hou, X. and Meng, L Q and Li, L. and Pan, GL and Li, B.},
  issn         = {0931-2048},
  keyword      = {Biochar application,Charcoal,Herbivorous insects,Integrated pest management,Life history,Rice},
  language     = {eng},
  month        = {12},
  number       = {10},
  pages        = {727--733},
  publisher    = {Wiley-Blackwell},
  series       = {Journal of Applied Entomology},
  title        = {Biochar amendment to soils impairs developmental and reproductive performances of a major rice pest Nilaparvata lugens (Homopera : Delphacidae)},
  url          = {http://dx.doi.org/10.1111/jen.12218},
  volume       = {139},
  year         = {2015},
}