Evaluation of Residue Distribution of Spraying Nozzles Produced for the Prevention of Spray Drift

Abstract

The widespread use of pesticides has negative impacts on human health and the environment. This situation increases the severityday by day. Especially spray drift is one of the factors that should be controlled. In addition, pesticide costs have led to newsolutions. Conventional spraying nozzles and anti-drift spraying nozzles are discussed in this study. The study carried out inviticulture areas. Pesticide residual amounts were determined by sampling surfaces placed in different parts of the plant. Thesampling surfaces were placed on the top and bottom surfaces of the leaves. Pesticide residue rates were determined in differentregions of the plant. The average pesticide residual amounts on the leaves with the anti-drift spray nozzles AITX 8002 VK and ITR8002 were found to 63.5% and 49.9% higher than the conventional TX VK12 spray nozzle, respectively, also 44.2% and 32.2%higher than the other conventional spray nozzle TR 8002, respectively. The lowest value of top to bottom pesticide residue ratiofor leaves was 2.22 at anti-drift ITR 8002 spray nozzle and the highest value of top to bottom pesticide residue ratio for leaveswas 2.95 with the conventional spray nozzle TR 8002. All the type of spray nozzles except anti-drift AITX 8002, produced lessresidue in the inner parts compared to outer parts. The highest penetration rate was 90% with the AITX 8002 VK spray nozzle andthe lowest penetration was 55% with the conventional TX VK12 spray nozzle type.