EFFECT OF ACARICIDES ON TETRANYCHUS URTICAE KOCH INFESTING DODI, LEPTADENIA RETICULATA (RET.) WIGHT & ARUOTT.

To evaluate the bio-efficacy of different acaricides, an experiment was conducted against Tetranychus urticae (Koch) nourishing Dodi, Leptadenia reticulata (Ret.) Wight & Aruott and the findings revealed that abamectin 1.9 EC @ 0.00038% and spiromesifen 22.9 SC @ 0.02% were superior over other acaricides with a population reduction of 1.93 and 1.95 mites/cm2 leaf, respectively. Likewise, etoxazole 10 SC @ 0.01%, chlorfenapyr 10 SC @ 0.015% and propargite 57 EC @ 0.114% were the next effective treatments as reduced the population of mites at 3.44, 3.83 and 4.38 mites/cm2 leaf. Whereas, the lowest efficacy or highest incidence of mites was recorded in the leaves treated with dimethoate 30 EC @ 0.03% (7.25 mites/cm2 leaf) followed by sulphur 80 WDG @ 0.20% (6.77 mites/cm2 leaf) and ethion 50 EC @ 0.05% (5.82 mites/cm2 leaf). [ABSTRACT FROM AUTHOR]