Reference : Consumption of Immature Stages of Colorado Potato Beetle by Chrysoperla Carnea (Neuro...
Scientific journals : Article
Life sciences : Entomology & pest control
http://hdl.handle.net/2268/132328
Consumption of Immature Stages of Colorado Potato Beetle by Chrysoperla Carnea (Neuroptera: Chrysopidae) Larvae in the Laboratory
English
Sablon, Ludovic mailto [Université de Liège - ULg > Sciences agronomiques > Entomologie fonctionnelle et évolutive >]
Haubruge, Eric mailto [Université de Liège - ULg > Services administratifs généraux > Vice-Recteur de Gembloux Agro Bio Tech >]
Verheggen, François mailto [Université de Liège - ULg > Sciences agronomiques > Entomologie fonctionnelle et évolutive >]
Feb-2013
American Journal of Potato Research
Springer
90
1
51-57
Yes
International
1099-209X
1874-9380
New York
NY
[en] Biological control ; Feeding behavior ; Handling time ; Integrated pest management ; Lacewing ; Predation
[en] The Colorado potato beetle (CPB), Leptinotarsa
decemlineata (Say), has been an important defoliator of potatoes
for 150 years. Although the use of insecticides allowed
drastic reductions of CPB populations, resistance development
against active substances has been observed. In this
context, biological control using predatory larvae of the lacewing
may represent a good alternative. CPB egg and larval
consumption rates have been evaluated for all Chrysoperla
carnea (Stephens) instars for 24 h. While first and second C.
carnea instars only consumed eggs (1.3 and 1.8), first (1.5 and
2.4) and second (0.6 and 0.8) CPB instars, third instar of
lacewing consumed all CPB immature stages: 6.8 CPB eggs,
8.5 first, 4 s, 0.5 third and 0.1 fourth CPB instars. This third
instar killed 4-fold more CPB larvae than other larval stages.
Handling time for third instar lacewing has been evaluated at
52 min on first instar CPB, 102 min on second instar and
164 min on third instar. Our laboratory assays highlight a
potential for lacewing larvae to control CPB immature stages
with a greater efficiency on young CPB larval stages. Fields
assays are however needed to confirm efficiency of this CPB
natural enemy under field conditions.
CURAGx
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/132328
10.1007/s12230-012-9275-y

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