EFFECT OF PLANT HEIGHT OF FRUIT TREES ON DROPLET SIZE AND DENSITY AFTER USING DIFFERENT SPRAY EQUIPMENT AGAINST ORIENTAL FRUIT FLY, BACTROCERA DORSALIS HENDEL

摘要

The volume median diameter (VIVID) and number of dropSets/cm~2 was more In the exterior portion of tree canopy compared to inner part of the trees of peach, pear and guava with different spraying devices. With the increase in piant height, VMD and thedroplet density/cm~2 decreased in logger and motorized knapsack sprayers compared to rocking sprayer.