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CTA. 1988. Electrostatic spraying. Spore 14. CTA, Wageningen, The Netherlands.
Permanent link to this item: http://hdl.handle.net/10568/44827
An air-assisted electrostatic sprayer has been used successfully in glasshouse trials to apply less than 1 litre/ha of pesticides to control whitefly in tomatoes. The technique has been tested at the AFRC Institute of Horticultural Research,...
An air-assisted electrostatic sprayer has been used successfully in glasshouse trials to apply less than 1 litre/ha of pesticides to control whitefly in tomatoes. The technique has been tested at the AFRC Institute of Horticultural Research, Littlehampton, U K. High volumes (1,000 litres/ha) of insecticide sprays are wasteful because the majority of the chemical is deposited on upper leaf surfaces, or 'runs off' to the ground, whilst the pests feed on the undersides of the leaves. The air-assisted electrostatic sprayer produces tiny charged droplets of chemical and achieves good penetration of the crop canopy. The electric charge attracts the droplets equally to both sides of the leaves. As a result, much more of the chemical reaches the parts of the crop where it could be effective against the pest. Glasshouse trials have also shown that insecticides may be applied selectively to the apical foliage of tomatoes to control adults, eggs and young larvae of whitefly. This minimizes contamination of fruit and reduces harmful effects on the whitefly parasite Encarsia. For more details, contact: Peter Grimbly AFRC Institute of Horticultural Research Littlehampton Sussex U K
SubjectsCROP PRODUCTION AND PROTECTION;
- CTA Spore (English)