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Biological Control Effect and Occurrence Regularity of Leguminivora glycinivorella in Mudanjiang Hilly Midlevels(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2012年02期
Page:
324-326
Research Field:
Publishing date:

Info

Title:
Biological Control Effect and Occurrence Regularity of Leguminivora glycinivorella in Mudanjiang Hilly Midlevels
Author(s):
MENG Xiang-hai; LIANG Jia-ling; SHI Xin-rui; ZHAO Yun-tong
Mudanjiang Branch,Heilongjiang Academy of Agricultural Sciences,Mudanjiang 157041,Heilongjiang,China
Keywords:
Mudanjiang hilly region; Leguminivora glycinivorella; Occurrence rule; Biological control; Chemical control
PACS:
S565.1
DOI:
10.3969/j.issn.1000-9841.2012.02.035
Abstract:
Leguminivora glycinivorella seriously affect soybean production.We investigated the population change and related meteorological factors of Leguminivora glycinivorella in Mudanjiang hilly midlevels,also compared the prevention effects of chemical and biological control in this paper.Leguminivora glycinivorella started in late July and ended in the end of August in 2011,lasting for 35 days.Its peak time was in mid-to-late August.With the increase of temperature,the number of Leguminivora glycinivorella rapidly increased and then fluctuated slightly when the temperature reached a high degree.The seed weight per plant,insect seed number,insect feed rate and seed number per plant of biological control were 1.16 times,1.20 times,71.4% and 61.3% of those of chemical control,respectively,and the differences were significant.We concluded that biological control effectively reduce the insect feed rate of Leguminivora glycinivorella and improve soybean quality and yield.

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Last Update: 2014-08-16