Plant Protect. Sci., 2004, 40(2):49-53 | DOI: 10.17221/460-PPS
Influence of parasitisation on cereal aphids (Sternorrhyncha: Aphidoidea) in various field management
- 1 Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nitra, Slovak Republic
- 2 Research Institute of Crop Production, Piešťany, Slovak Republic
The level of parasitism of cereal aphids on winter wheat at growth stage 69 DC (end of bloom) differed between two field management used (integrated and ecological) and between individual years of the experiment (1999-2001). Parasitism was always higher in the ecological field management. The average number of parasitised aphids per tiller was 1.84 in the integrated field management but 2.63 in the ecological field management. The average rate of aphid parasitisation was 8.31% in the integrated system, but 16.15% in the ecological field management and thus 94.33% higher.
Keywords: parasitoids; cereal aphids; winter wheat
Published: June 30, 2004 Show citation
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