Air pollution and agricultural aphid pests. I: Fumigation experiments with SO2 and NO2.
A wide range of aphid/host-crop systems was surveyed by means of fumigation experiments in closed chambers for sensitivity to SO(2) and NO(2) at a concentration of 100 nl litre(-1). Aphid performance was measured by the mean relative growth rate (MRGR) of individual aphids. In all cases, except for Acrythosiphon pisum (Harris) on Vicia fabaL., there were increases in the MRGR of the aphids feeding on fumigated plants as compared to clean air controls, both during and post fumigation. The increases in MRGR ranged from 6 to 75%, with the majority falling between 25 and 40%. A. pisum on V. faba showed a consistent negative response, with decreases in MRGR between -9 and -12%. The changes in aohid MRGR were not due to direct effects, as no significant differences in MRGR were observed between fumigated and clean air chambers when aphids were fed on artificial diet sachets during fumigation.[1]References
- Air pollution and agricultural aphid pests. I: Fumigation experiments with SO2 and NO2. Houlden, G., McNeil, S., Aminu-Kano, M., Bell, J.N. Environ. Pollut. (1990) [Pubmed]
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