Evaluation of two different pesticides sprayer equipment techniques on squash plants

Abstract EN

The main experiments were carried out during 2017 and 2018 seasons at the New Salheia, Sharkia Governorate to investigate and evaluate two techniques (pressure or hydraulic atomization and centrifugal atomization) to apply pesticides and their effect on volume median diameter, number of droplets/cm², L and loss and drift outside treatment or contamination of applicator, pesticides efficiency.

This work was tested three equipment, the equipment used were ULVA sprayer, electric battery sprayer fitted with flat fan nozzle Ss-83 and conventional motor sprayer with variable spraying rates.

In addition, pesticides buprofezin and imidacloprid against the aphid Aphis gossypii Glover (Hemiptera: Aphididae) and the tomato whitefly Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) and pests infested squash plants where be used.

Current study was determined the effect of each technique and pesticide of reduction of pests and determined the contamination of applicator, L and loss and Drift outside treatment caused by each technique.

The result obtained during the two seasons showed that the spray with high volume was gave low percent reduction of pests and high contamination of applicator or Losses on land if compared with low volume spraying.

No drift spray was recorded by ULVA sprayer and electric battery sprayer fitted flat fan (Ss-83) nozzle, while there is drift spray was occurred with the use conventional motor sprayer on distance 1m, 2m and 3m.