EFFECT OF NOZZLE ORIENTATION ON DISPERSION OF TRUCK MOUNTED ULTRA LOW VOLUME SPRAY AT DIFFERENT HEIGHTS AND DISTANCES

A field evaluation study was conducted to understand the dispersion of spray from a truck-mounted ultra-low-volume (ULV) sprayer when released with nozzle oriented at conventional angle 45° in addition 22° and 0° respect ground surface. The an open grassy Anastasia Mosquito Control District by applying Aqualuer™ 20-20 highest label application rate. Mortality caged female Aedes aegypti tested 1.5, 3.0, 6.0, 8.5 m heights 0, 30, 60, 90 line. Spray trials were during early morning hours all test groups replicated three times over different days. During these evaluations higher mortality recorded orientations up 30 line 3 m. orientation provided greatest source 6.0