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Comparison of application methods for aphicides on sugar beet and swedes |
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| Authors: | G. R. Cayley D. C. Griffiths R. Lewthwaite B. J. Pye A. M. Dewar G. H. Winder |
| Affiliation: | * Rothamsted Experimental Station, Harpenden, Herts, AL5 2FQ, UK ‡ Broom's Barn Experimental Station, Higham, Bury St Edmunds, Suffolk, IP28 6NP, UK |
| Abstract: | Different designs of electrostatic sprayer (based on hydraulic, rotary atomizer or electrodynamic principles) were compared with uncharged hydraulic sprayers for application of aphicides to sugar beet and swedes. On small plants, the underleaf cover given by low-volume electrostatic systems, ‘APE 80’ and ‘Electrodyn’, enabled effective use of contact-active pyrethroid insecticides. On large plants, electrostatic systems gave no advantage over hydraulic systems and all the systems required the use of aphicides with systemic or fumigant properties to give effective control. |
| Keywords: | Aphicides chemical control application methods swedes sugar beet |
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