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The efficiency of sampling for aphid predators from lucerne

, : The efficiency of sampling for aphid predators from lucerne. Proceedings of the Forty Second New Zealand Weed and Pest Control Conference, Taranki Country Lodge, New Plymouth, 8-10 August, 1989: 81-85

Sweep nets and D-vac were compared for their ability to sample aphids and aphid predators from lucerne in New Zealand. The apparent relative abundance of the predators differed significantly with the sampling technique. The sweep net showed a bias for catching aphids and adult Coccinella spp. Both methods failed to detect populations of some species. The sweep net failed to catch Phalangium opilio, Lycosa spp. or larvae of Coccinella spp. that were present.

Accession: 002249754

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Related references

Milne, Wm, 1979: The potential of lucerne aphid predators. Working papers Australian Applied Entomological Research Conference Queensland Agricultural College Lawes

Hodek, I.; Homek, A., 1988: Sampling, rearing and handling of aphid predators. Unknown

Allen, Pg, 1986: The impact of predators on spotted alfalfa aphid in lucerne pasture during spring in South Australia. Series Entomologica Dordrecht 35: 375-380

Sandhu, G.S., 1986: Chemical control of spotted alfalfa aphid Therioaphis trifolii (Monell) on lucerne with reference to conservation of coccinellid predators. Following a serious outbreak of Therioaphis trifolii on lucerne at Ludhiana, Punjab, India, in May-June 1977, oxydemeton-methyl, dimethoate, phosphamidon and malathion were tested for its control. Five days after spraying, oxydemeton-methyl at 75...

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Kain, WM.; Biggs, DR., 1980: Effect of pea aphid and bluegreen lucerne aphid (Acyrthosiphon spp.) on coumestrol levels in herbage of lucerne (Medicago sativa). Field and glasshouse studies in New Zealand on the effects of aphids on the nutritive quality of lucerne showed that infestation by Acyrthosiphon pisum (Harris) and A. kondoi Shinji caused increased levels of coumestrol in the herbage. Under field...

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Bishop, A.; Mckenzie, H., 1982: Sampling Acyrthosiphon kondoi Shinji in the field Lucerne aphid, New South Wales. Journal of the Australian Entomological Society, 21(4): 312

Gosselke, U.; Rossberg, D.; Triltsch, H.; Freier, B., 2001: Computer simulations on the efficiency of cereal aphid predators in winter wheat. The efficiency of predators in the tritrophic system winter wheat-cereal aphids (Sitobion avenae, Rhopalosiphum padi and Metopolophium dirhodum)-antagonists (Coccinella septempunctata, Propylea quatuordecimpunctata and syrphids) was investigated w...

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